DMVCFramework (for short) is a popular and powerful framework for WEB API in Delphi. Supports RESTful and JSON-RPC WEB APIs development.
Table of Contents
DMVCFramework is a very popular Delphi framework which provides an easy to use, scalable, flexible RESTful, JSON-RPC and ActiveRecord framework for Delphi developers. DMVCFramework is the most popular Delphi project on GitHub and compiles for Windows (32 and 64bit) and Linux (64bit). DMVCFramework services can be compiled as console application, Windows Service, Linux daemon, Apache module (Windows and Linux) and IIS ISAPI (Windows).
DMVCFramework works with Delphi 11 Alexandria, Delphi 10.4 Sydney, Delphi 10.3 Rio, Delphi 10.2 Tokyo, Delphi 10.1 Berlin, Delphi 10 Seattle.
Are you using DMVCFramework? Do you want to say "Thanks"? Become a Patron!
DMVCFramwork is simple to use, has a lot of examples, is documented and there are a lot of tutorials available.
DMVCFramework is very well documented and the book DMVCFramework - the official guide is available to fastly get a solid knowledge (available as e-book and hardcopy).
Project Roadmap is always public
There are more than 40 samples to learn all the features and be proficient and productive
Commercially supported by bit Time Professionals (training, consultancy, custom development etc.)
RESTful (RMM Level 3) compliant
JSON-RPC 2.0 Support with automatic objects remotization (check sample)
DMVCFramework' MVCActiveRecord allows an easy and fast database access.
Stable and solid, used by small/mid/big projects since 2010
Very fast! (2.x was pretty fast and now, 3.x is 60% faster than the 2.x!)
Support group at https://www.facebook.com/groups/delphimvcframework with more than 4900 active members
Can be used in load balanced environment
Wizard for the Delphi IDE. It makes DelphiMVCFramework even more simple to use!
Optional session support
JSON Web Token Support (JWT) (check sample)
Extendable using middleware - simple hooks to handle request/response (check sample)
Flexible yet simple to use, authorization/authentication framework based on industry standards.
Controllers inheritance! You can define your own base controller and inherit from it.
Fancy URL with parameter mappings
Specialized renders to generate text, HTML, JSON.
Powerful and customizable mapper to serialize/deserialize data.
Can be packaged as stand alone server, apache module (XE6 or better) and ISAPI dll
Integrated REST Client
Works on Linux (Delphi 10.2 Tokyo or better)
Completely unit tested (more than 250 unit tests)
There is a sample for each functionality (check the dmvcframework_(yourversion)_samples.zip)
Server side generated pages using Mustache for Delphi or TemplatePro
Specific trainings are available (email to [email protected]
for a date and a place)
Push notifications support using ServerSentEvents
Automatic documentation through /system/describeserver.info
Driven by its huge community (Facebook group https://www.facebook.com/groups/delphimvcframework)
Semantic Versioning
To get a fast introduction to DMVCFramework read the slides from ITDevCon conference
If you are not involved in development or testing, do not clone the repo! Use the Github release!
The last stable version available here 📥. Just download latest release as a zip file and you are ok. Samples are available as separate zip file downloadable from the same page where you download the release.
The official guide for DMVCFramework is available. DMVCFramework has a lot functionalities and can really help your business. However many developers don't use it at its full potential. Why don't get more when is easily available? The DMVCFramework lead developer and project coordinator Daniele Teti, wrote the official guide for this great framework.
Buy your copy and improve your DMVCFramework knowledge now! "DMVCFramework - the official guide" is available as e-book and hardcopy, pick what you prefer.
While a huge work has been done by the author and the reviews to make the book and the examples well written, complete and effective, things can be always improved. For any suggestions, complains or requests there is the official Github book project (https://github.com/danieleteti/dmvcframeworktheofficialguide) where you can fill an issue and get in touch directly with the author.
Given the success of DMVCFramework in the Delphi community, the official DMVCFramework guide has been translated also in the following languages.
Please, if you use DMVCFramework "star" this project in GitHub! It cost nothing to you but helps other developers to reference the code.
Only if you want to participate to the testing phase (which usually contains brand new features but can sometimes be instable) you can get the development version clonig this repo or downloading the master repository zip file. Take in mind that even if development version is usually very stable, it isn't not ready for production utilization.
While DMVCFramework is born from the head of Daniele Teti from bit Time Professionals, it wouldn't what is now without the support and work of many people all around the world. The following companies sponsored some specific part of DMVCFramework so they wort a special mention.
GOLD SPONSORS
COMPANY NAME | LOGO |
---|---|
bit Time Professionals | |
bit Time Professionals - ITALY | |
bit Time Software |
SILVER SPONSOR
COMPANY NAME | LOGO |
---|---|
Centro Software | |
Delphi Studio ES | |
Orion Law | |
Vivaticket |
"Our wishes are coming true" -- one Delphi programmer after a small dmvcframework demo for an IT department of a very important national research institute
"I'm still amazed by the DelphiMVCFramework code and documentation. Thank you very much and I am amazed by your quick feedback." -- Benjamin Yang (Director of SQLGate)
"DMVCFramework and the Entity utility are fantastic!" -- Roberto
"DMVCFramework is a great framework. It's very intuitive, fast, easy to use, actually there is nothing more to ask for." -- Samir
"Wow! To do that in J2EE it takes 2 days" -- a training participant after a 5 minutes demo.
"I'm starting with the DMVCFramework and I'm finding it fantastic, congratulations for the project!" -- Rafael
"I'm looking at DMVCFramework project in it works great - for my use case scenarios is much better than 'Similar commercial product'." -- Luka
"It's fantastic! Just define your entities and you are up and running in 5 minutes. Nothing comparable on the market." -- Marco
"The best framework for creating web servers with Delphi! It is very easy to create Delphi servers and publish APIs and Rest resources. Congratulations to Daniele Teti and all the staff for the excellent work!" -- Marcos N.
We started the process of migrating our systems to micro services and are loving the DMVCFramework "DMVCFramework is definitely part of our lives right now". -- E. Costa
"Thank you for the great framework! We are very happy with this!" -- Andreas
"I managed to generate an API for my application thanks to this framework, it is truly useful and efficient!" -- J. Urbani
👉 A deep analisys of what's new in DelphiMVCFramework-3.4.1-sodium is available on Daniele Teti Blog 👈
👉 Deeper analisys of what's new in DelphiMVCFramework-3.4.0-neon is available on Daniele Teti Blog 👈
⚡ Added support for dotEnv
⚡ Added MSHeap memory manager for Win32 and Win64 (https://github.com/RDP1974/DelphiMSHeap)
🐞 FIX Issue 667
🐞 FIX Issue 680
🐞 FIX Wrong comparison in checks for ro/RW/PK fields in TMVCActiveRecord
🐞 FIX wrong default initialization for JWT (thanks to Flavio Basile)
⚡ Wizard updated to be dotEnv aware
⚡ Added HTMX server side support through unit samples\htmx\MVCFramework.HTMX.pas
and the relative sample (Thanks to David Moorhouse). This unit provides class helper for TMVCWebRequest
and TMVCWebResponse
classes to easily work with HTMX. If you want to use this unit just download the samples and add it to your project or put $(DMVCHOME)\samples\htmx
in your library path.
⚡ Added "Load Style" methods to TMVCActiveRecord
(more info https://github.com/danieleteti/delphimvcframework/issues/675)
TMVCActiveRecord
support "Factory Style" and "Load Style" methods when loads data from database.
Using "Factory Style" methods (available from the first version) the result list is returned by the loader method (as shown in this piece of code from the activerecord_showcase
sample).
Log('>> RQL Query (2) - ' + cRQL2);
lCustList := TMVCActiveRecord.SelectRQL<TCustomer>(cRQL2, 20);
try
Log(lCustList.Count.ToString + ' record/s found');
for lCustomer in lCustList do
begin
Log(Format('%5s - %s (%s)', [lCustomer.Code.ValueOrDefault,
lCustomer.CompanyName.ValueOrDefault, lCustomer.City]));
end;
finally
lCustList.Free;
end;
For some scenarios would be useful to have also "Load Style" methods where the list is filled by the loader method (not instantiated internally).
Log('>> RQL Query (2) - ' + cRQL2);
lCustList := TObjectList<TCustomer>.Create;
try
lRecCount := TMVCActiveRecord.SelectRQL<TCustomer>(cRQL2, 20, lCustList); //new in 3.4.0-neon
Log(lRecCount.ToString + ' record/s found');
for lCustomer in lCustList do
begin
Log(Format('%5s - %s (%s)', [lCustomer.Code.ValueOrDefault,
lCustomer.CompanyName.ValueOrDefault, lCustomer.City]));
end;
finally
lCustList.Free;
end;
⚡ Better error message in case of serialization of TArray<TObject>
⚡ Improved CORS handling - Issue 679 (Thanks to David Moorhouse)
⚡ Improved serialization of TObjectList<TDataSet>
(however ObjectDict
is still the preferred way to serialize multiple datasets).
⚡ Added static method for easier cloning of FireDAC dataset into TFDMemTable
.
In the class EMVCException
the property HTTPErrorCode
has been renamed in HTTPStatusCode
.
⚡ Functional Actions
In addition to the classic procedure
based actions, now it's possibile to use functions as actions. The Result
variable is automatically rendered and, if it is an object, its memory is freed.
type
[MVCNameCase(ncCamelCase)]
TPersonRec = record
FirstName, LastName: String;
Age: Integer;
class function Create: TPersonRec; static;
end;
[MVCNameCase(ncCamelCase)]
TPerson = class
private
fAge: Integer;
fFirstName, fLastName: String;
public
property FirstName: String read fFirstName write fFirstName;
property LastName: String read fLastName write fLastName;
property Age: Integer read fAge write fAge;
end;
[MVCPath('/api')]
TMyController = class(TMVCController)
public
{ actions returning a simple type }
[MVCPath('/sumsasinteger/($A)/($B)')]
function GetSum(const A, B: Integer): Integer;
[MVCPath('/sumsasfloat/($A)/($B)')]
function GetSumAsFloat(const A, B: Extended): Extended;
{ actions returning records }
[MVCPath('/records/single')]
function GetSingleRecord: TPersonRec;
[MVCPath('/records/multiple')]
function GetMultipleRecords: TArray<TPersonRec>;
{ actions returning objects }
[MVCPath('/objects/single')]
function GetSingleObject: TPerson;
[MVCPath('/objects/multiple')]
function GetMultipleObjects: TObjectList<TPerson>;
{ actions returning datasets }
[MVCPath('/datasets/single')]
function GetSingleDataSet: TDataSet;
[MVCPath('/datasets/multiple')]
function GetMultipleDataSet: TEnumerable<TDataSet>;
[MVCPath('/datasets/multiple2')]
function GetMultipleDataSet2: IMVCObjectDictionary;
{ customize response headers }
[MVCPath('/headers')]
function GetWithCustomHeaders: TObjectList<TPerson>;
end;
Check sample "function_actions_showcase.dproj" for more info.
⚡ Improved TMVCResponse
type to better suits the new functional actions.
TMVCResponse
can be used with "message based" responses and also with "data based" responses (with single object, with a list of objects or with a dictionary of objects).
More info here
Removed statuscode
, reasonstring
and all the field with a default value from exception's JSON rendering. All the high-level rendering methods will emit standard ReasonString
.
Before
{
"apperrorcode": 0,
"statuscode": 404,
"reasonstring": "Not Found"
"classname": "EMVCException",
"data": null,
"detailedmessage": "",
"items": [],
"message": "[EMVCException] Not Found"
}
Now
{
"classname": "EMVCException",
"message": "Not Found"
}
⚡ New! SQL and RQL Named Queries support for TMVCActiveRecord.
Here's all the new methods available for Named Queries
class function SelectByNamedQuery<T: TMVCActiveRecord, constructor>(
const QueryName: String;
const Params: array of Variant;
const ParamTypes: array of TFieldType;
const Options: TMVCActiveRecordLoadOptions = []): TObjectList<T>; overload;
class function SelectByNamedQuery(
const MVCActiveRecordClass: TMVCActiveRecordClass;
const QueryName: String;
const Params: array of Variant;
const ParamTypes: array of TFieldType;
const Options: TMVCActiveRecordLoadOptions = []): TMVCActiveRecordList; overload;
class function SelectRQLByNamedQuery<T: constructor, TMVCActiveRecord>(
const QueryName: String;
const Params: array of const;
const MaxRecordCount: Integer): TObjectList<T>; overload;
class function SelectRQLByNamedQuery(
const MVCActiveRecordClass: TMVCActiveRecordClass;
const QueryName: String;
const Params: array of const;
const MaxRecordCount: Integer): TMVCActiveRecordList; overload;
class function DeleteRQLByNamedQuery<T: TMVCActiveRecord, constructor>(
const QueryName: String;
const Params: array of const): Int64;
class function CountRQLByNamedQuery<T: TMVCActiveRecord, constructor>(
const QueryName: string;
const Params: array of const): Int64;
MVCNamedSQLQuery
allows to define a "named query" which is, well, a SQL query with a name. Then such query can be used by the method SelectByNamedQuery<T>
or SelectByNamedQuery
. Moreover in the attribute it is possible to define on which backend engine that query is usable. In this way you can define optimized query for each supported DMBS you need.
More info here
ContextEvents
⚡ Default error responses contains the official "reason string" associated to the HTTP status code (this can be a breaking change for some generic client which doesn't correctly interpret the http status code)
⚡ Added static method HTTP_STATUS.ReasonStringFor(HTTPStatusCode)
wich returns the standard ReasonString
for a given HTTP status code.
⚡ Improved handling of TMVCErrorResponse
information
⚡ mid-air-collision handling now uses SHA1 instead of MD5
⚡ Added MVCFramework.Commons.MVC_HTTP_STATUS_CODES
const array containing all the HTTP status codes with its ReasonString
.
⚡ Support for TObject
descendants in JSONRPC APIs (not only for JSONObject and JSONArray).
⚡ New global configuration variable MVCSerializeNulls
.
⚡ Nullable types now have Equal
method support, the new method TryHasValue(out Value)
works like HasValue
but returns the contained value if present. Also there is a better "equality check" strategy.
⚡ Unit tests now are always executed for Win32 and Win64 bit (both client and server).
⚡ Added TMVCActiveRecord.Refresh
method
⚡ Unit test suites generates one NUnit XML output file for each platform
⚡ New built-in profiler (usable with Delphi 10.4+) - to profile a block of code, write the following
procedure TMyController.ProfilerSample1;
begin
NotProfiled(); //this line is not profiled
//the following begin..end block will be profiled
//timing will be saved in a "profiler" log
begin var lProf := Profiler.Start(Context.ActionQualifiedName);
DoSomething();
DoSomethingElse();
Render('Just executed ' + Context.ActionQualifiedName);
end; // profiler writes automatically to the log
NotProfiled(); //this line is not profiled
end;
procedure TMyController.DoSomething;
begin
begin var lProf := Profiler.Start('DoSomething');
Sleep(100);
end;
end;
procedure TMyController.DoSomethingElse;
begin
begin var lProf := Profiler.Start('DoSomethingElse');
Sleep(100);
DoSomething();
end;
end;
procedure TMyController.NotProfiled;
begin
Sleep(100);
end;
The log contains the following lines - check the caller/called relationship shown using >>
and <<
and the deep level
[>>][ 1][MainControllerU.TMyController.ProfilerSample1] [profiler]
[ >>][ 2][DoSomething] [profiler]
[ <<][ 2][DoSomething][ELAPSED: 00:00:00.1088214] [profiler]
[ >>][ 2][DoSomethingElse] [profiler]
[ >>][ 3][DoSomething] [profiler]
[ <<][ 3][DoSomething][ELAPSED: 00:00:00.1096617] [profiler]
[ <<][ 2][DoSomethingElse][ELAPSED: 00:00:00.2188468] [profiler]
[<<][ 1][MainControllerU.TMyController.ProfilerSample1][ELAPSED: 00:00:00.3277806] [profiler]
To get more info check the "profiling" example.
All profiler logs are generated with a log level info
. If measured time is greater than WarningThreshold
the log level is warning
.
WarningThreshold
is expressed in milliseconds and by default is equals to 1000.
⚡ New Context
property named ActionQualifiedName
which contains the currently executed action in the form UnitName.ClassName.ActionName
. It is available where the Context
property is available. Obviously is not available in the OnBeforeRouting
middleware events.
⚡ Added ObjectPool and IntfObjectPool (and related unit tests). Thanks to our sponsor Vivaticket S.p.A.
⚡ Method procedure Render(const AErrorCode: Integer; const AErrorMessage: string = '' ...
has been renamed to RenderStatusMessage
with a better parameter names.
⚡ IMVCJSONRPCExecutor
supports async call. Thanks to our sponsor Orion Law. Check the new Async sample in samples\jsonrpc_with_published_objects\
.
⚡ Removed foTransient
if TMVCActiveRecord
FieldOptions
. It became obsolete after introduction of foReadOnly
and foWriteOnly
.
⚡ Improved TMVCActiveRecordMiddleware
. Now it can handle multiple connections for the same request. Also, you can completely omit the 'default' connection and just specify wich connection you want to use before starting to create your TMVCActiveRecord
inherited entities.
More details about dmvcframework-3.2.3-radium fixes here
⚡New! Support for Delphi 11.x Alexandria
⚡New TMVCRESTClient
implementation based on *Net components, the previous one was based on INDY Components (thanks to João Antônio Duarte).
⚡New! MVCJSONRPCAllowGET
attribute allows a remote JSON-RPC published object, or a specific method, to be called using GET HTTP Verb as well as POST HTTP Verb. POST is always available, GET is available only if explicitly allowed. IMVCJSONRPCExecutor
allows to specify which HTTP Verb to use when call the server JSON-RPC methods. The default verb can be injected in the constructor and each ExecuteRequest
/ExecuteNotification
allows to override od adhere to the instance default.
⚡New! eLua server side view support added! The View engine requires Lua's dlls so it is not included in the main package but in a sampl project. Check serversideviews_lua
sample.
✅ Improved! Under some heavy load circumnstances the logger queue can get full. Now TThreadSafeQueue
class uses a cubic function instead of a linear one to wait in case of very high concurrency. This allows a better resiliency in case of high load.
✅ Improved internal architecture of custom type serializers in case of dynamic linked packages.
✅ Improved Swagger/OpenAPI support for System Controllers and improved support for param models.
⚡New TMVCLRUCache
implementation. Very efficient implementation of LRU cache borrowed directly from DMSContainer
⚡New TMVCRedirectMiddleware
to handle HTTP redirections in a very simple and flexible way.
⚡New! TMVCActiveRecord
supports XML field type in PostgreSQL (in addition to JSON and JSONB).
⚡New OnContextCreate
and OnContextDetroyed
events for TMVCEngine
.
⚡New! Added parameter RootNode
in BodyFor
<T> and BodyForListOf<T>
methods, just like the BodyAs*
methods.
⚡New! Added NullableTGUID
in MVCFramework.Nullables.pas
.
⚡New property CustomIntfObject: IInterface
in TWebContext
. This property can be used to inject custom services factory.
procedure TMyWebModule.WebModuleCreate(Sender: TObject);
begin
FMVC := TMVCEngine.Create(Self,
procedure(Config: TMVCConfig)
begin
//configuration code
end);
FMVC.AddController(TMyController);
FMVC.OnWebContextCreate(
procedure(const CTX: TWebContext)
begin
CTX.CustomIntfObject := TServicesFactory.Create; //implements an interface
end);
FMVC.OnWebContextDestroy(
procedure(const CTX: TWebContext)
begin
//do nothing here
end);
end;
✅ Added parameter to set local timeStamp as UTC.
✅ Improved OpenAPI (Swagger) support.
✅ Improved Support for OpenAPI (Swagger) API Versioning (check swagger_api_versioning_primer
sample)
✅ Improved! The unit tests fully test PostgreSQL, FirebirdSQL and SQLite while testing MVCActiveRecord framework. The other engines are tested using activerecord_showcase
sample project.
✅ Improved! MVCActiveRecord does a better job to handle TDate/TTime/TDateTime types for SQLite (it is automatic because SQLite doesn't support date/time types).
✅ Improved! PostgreSQL, FirebirdSQL, Interbase and SQLite now support tablename and fields with spaces.
✅ Improved Nullable Types. Now it's possible to assign nil
to a nullable type and to check its state using the new property IsNull
which is the negation of the already available property HasValue
.
✅ Improved! Now TMVCStaticFileMiddleware
is able to manage high-level criteria to show/hide/mask specific files in the document web root. Check Issue 548 and the updated sample samples\middleware_staticfiles\
for more info.
✅ Improved! In case of multiple MVCPath, Swagger consider only the first one (Thanks to V. Ferri and our sponsors)
⚡New! Mechanism to customize the JWT claims setup using the client request as suggested in issue495
⚡New! Added TMVCActiveRecord.Merge<T>(CurrentListOfT, ChangesOfT)
to allow merge between two lists of TMVCActiveRecord
descendants using UnitOfWork
design pattern. Check the button "Merge" in demo "activerecord_showcase".
⚡ New! Added default filtering for TMVCActiveRecord descendants
(check activerecord_showcase
sample project).
⚡ New! Serialization and Deserialization for Pascal set
(Thanks to rshuck for his suggestions)
⚡ New! Added partitioning for TMVCActiveRecord descendants
(more info ASAP)
✅ Dramatically improved all "JSON-To-DataSet" operations (1 order of magnitude c.a.). Thanks to MPannier and David Moorhouse for their detailed analysis - More info here.
✅ Improved! After a big refactoring ("I love to delete code" -- cit. Daniele Teti), support a new SQLGenerator is just 2 (two) methods away! Just as example, this is the current version of TMVCSQLGeneratorPostgreSQL
type
TMVCSQLGeneratorPostgreSQL = class(TMVCSQLGenerator)
protected
function GetCompilerClass: TRQLCompilerClass; override;
public
function CreateInsertSQL(
const TableName: string;
const Map: TFieldsMap;
const PKFieldName: string;
const PKOptions: TMVCActiveRecordFieldOptions): string; override;
function GetSequenceValueSQL(const PKFieldName: string;
const SequenceName: string;
const Step: Integer = 1): string; override;
end;
⚡ New! Added new default parameter to TMVCActiveRecord.RemoveDefaultConnection
and TMVCActiveRecord.RemoveConnection
to avoid exceptions in case of not initialized connection.
⚡ New! Added the new MVCOwned
attribute which allows to auto-create nested objects in the deserialization phase. This will not change the current behavior, you ned to explocitly define a property (or a field) as MVCOwned
to allows the serialization to create or destroy object for you.
✅ Improved! Context.Data
property is now created on-demand using a lazy loading approach (expect an overall speed improvement).
✅ Added LogException
function in MVCFramework.Logger.pas
to easily log exception in standard way.
✅ Improved MVCAREntitiesGenerator
project - now it can better handle border cases, field names which collide with Delphi keywords and a big number of tables.
✅ Improved error handling for JSON-RPC APIs (Thanks to David Moorhouse). More info here.
✅ Improved parameter handling for enum and set in JSON-RPC APIs.
⚡ New! Added ActiveRecordConnectionRegistry.AddDefaultConnection(const aConnetionDefName: String)
. The connection definition must be known by FireDAC. This method simplifies the most common scenario shown below.
ActiveRecordConnectionRegistry.AddDefaultConnection('MyConDefName');
try
//Use active record classes
finally
ActiveRecordConnectionRegistry.RemoveDefaultConnection;
end;
⚡ New! Added ToJSONObject
and ToJSONArray
to the IMVCRESTResponse
. These methods automatically parse the response body and return a TJSONObject
or a TJSONArray
respectively. These methods work as a factory - the client code need to handle returned istances. Is the body is not compatible with the request (a.k.a. is not a JSONObject in case of ToJSONObject
, or is not a JSONArray in case of ToJSONArray
) an exception is raised.
⚡ New! Added support for primary GUID (UUID) primary keys, attributes and serialization (More info at issue 552). Thanks to Marcelo Jaloto for its important collaboration.
⚡ New! Added TMVCJWTBlackListMiddleware
to allow black-listing and (a sort of) logout for a JWT based authentication. This middleware must be registered after the TMVCJWTAuthenticationMiddleware
.
This middleware provides 2 events named:
OnAcceptToken
(invoked when a request contains a token - need to returns true/false if the token is still accepted by the server or not) andOnNewJWTToBlackList
(invoked when a client ask to blacklist its current token). There is a new sample available which shows the funtionalities:samples\middleware_jwtblacklist
.
⚡New! MVCFromBody
attribute, useful to automatically inject the request body as actual object in the action paramaters. For instance in the following action the body request is automatically deserialized as an object of class TPerson.
//interface
[MVCHTTPMethod([httpPOST])]
[MVCPath('/people')]
procedure CreatePerson(const [MVCFromBody] Person: TPerson);
//implementation
procedure TRenderSampleController.CreatePerson(const Person: TPerson);
begin
//here you can directly use Person without call Context.Request.BodyAs<TPerson>
//the Person object lifecycle is automatically handled by dmvcframework, so don't destroy
//If the request body doesn't exist (or cannot be deserialized) an exception is raised.
end;
MVCFromBody can be used also with "Collection Like" data structures. //interface
[MVCDoc('Creates new articles from a list and returns "201: Created"')]
[MVCPath('/bulk')]
[MVCHTTPMethod([httpPOST])]
procedure CreateArticles(const [MVCFromBody] ArticleList: TObjectList<TArticle>);
//implementation
procedure TArticlesController.CreateArticles(const ArticleList: TObjectList<TArticle>);
var
lArticle: TArticle;
begin
for lArticle in ArticleList do
begin
GetArticlesService.Add(lArticle);
end;
Render(201, 'Articles Created');
end;
⚡New! MVCFromQueryString
attribute, useful to automatically inject a query string paramater an action paramater. For instance in the following action the query string params fromDate
is automatically deserialized as a TDate
value and injected in the action.
//interface
[MVCHTTPMethod([httpGET])]
[MVCPath('/invoices')]
procedure GetInvoices(const [MVCFromQueryString('fromDate')] FromDate: TDate);
//implementation
procedure TRenderSampleController.GetInvoices(const FromDate: TDate);
begin
//here FromDate is a valid TDate value deserialized from the querystring paramater
//named fromDate.
//If the query string parameter doesn't exist (or cannot be deserialized) an exception is raised.
end;
⚡New! MVCFromHeader
attribute, useful to automatically inject a header value as an action parameter. For instance in the following action the header params XMyCoolHeader
is automatically deserialized as String
value and injected in the action.
//interface
[MVCHTTPMethod([httpGET])]
[MVCPath('/invoices')]
procedure GetInvoices(const [MVCFromQueryString('fromDate')] FromDate: TDate; const [MVCFromHeader('X-MY-COOL-HEADER')] XMyCoolHeader: String);
//implementation
procedure TRenderSampleController.GetInvoices(const FromDate: TDate; const XMyCoolHeader: String);
begin
//here XMyCoolHeader is a string read from the "X-MY-COOL-HEADER' request header.
//If the header doesn't exist (or cannot be deserialized) an exception is raised.
end;
⚡New! MVCFromCookie
attribute, useful to automatically inject a cookie value as an action parameter. For instance in the following action the cookie MyCoolCookie
is automatically deserialized as TDate
value and injected in the action.
//interface
[MVCHTTPMethod([httpGET])]
[MVCPath('/invoices')]
procedure GetInvoices(
const [MVCFromQueryString('fromDate')] FromDate: TDate;
const [MVCFromHeader('X-MY-COOL-HEADER')] XMyCoolHeader: String;
const [MVCFromCookie('MyCoolCookie')] MyCoolCookie: TDate;
);
//implementation
procedure TRenderSampleController.GetInvoices(const FromDate: TDate; const XMyCoolHeader: String; const MyCoolCookie: TDate);
begin
//here MyCoolCookie is a TDate read from "MyCoolCookie' cookie available in the request.
//If the cookie doesn't exist (or cannot be deserialized) an exception is raised.
end;
✅ Improved! While not strictly required nor defined, DMVCFramework supports sending body data for all HTTP VERBS - see https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/GET
⚡ New! Automated support to avoid "mid-air collisions". New methods SetETag
and CheckIfMatch
allows a better security without adding complexity to the controller code - check avoid_mid_air_collisions_sample.dproj
sample and see https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/ETag#avoiding_mid-air_collisions for more info about mid-air collisions.
✅ Improved! Ignored fields handling now is much better in renders method and in ObjDict
as well. See issue 528.
Fix https://github.com/danieleteti/delphimvcframework/issues/484 (thanks to João Antônio Duarte)
Fix https://github.com/danieleteti/delphimvcframework/issues/472 (thanks to João Antônio Duarte)
Fix https://github.com/danieleteti/delphimvcframework/issues/470 (thanks to João Antônio Duarte)
Fix https://github.com/danieleteti/delphimvcframework/issues/453 (thanks to João Antônio Duarte)
Fix https://github.com/danieleteti/delphimvcframework/issues/455 (thanks to João Antônio Duarte)
Fix https://github.com/danieleteti/delphimvcframework/issues/461
Fix https://github.com/danieleteti/delphimvcframework/issues/489 (thanks to drcrck for his initial analisys)
Fix https://github.com/danieleteti/delphimvcframework/issues/493 (thanks to DelphiMan68 for his initial analisys)
Fix https://github.com/danieleteti/delphimvcframework/issues/451
Fix https://github.com/danieleteti/delphimvcframework/issues/539
Fix https://github.com/danieleteti/delphimvcframework/issues/560 (thanks to David Moorhouse)
Fix https://github.com/danieleteti/delphimvcframework/issues/335 (thanks to João Antônio Duarte)
Fix https://github.com/danieleteti/delphimvcframework/issues/564
Fix https://github.com/danieleteti/delphimvcframework/issues/570 (Thanks Marcos Nielsen)
Fix https://github.com/danieleteti/delphimvcframework/issues/565
Merged PR#543 (Now the PathInfo
is trimmed so the router convert this "http://myserver.com/one " to this "http://myserver.com/one")
Fix for nil objects in lists during serialization
Fix a very subtle bug in MaxRecordCount
parameter for RQL based methods in TMVCActiveRecord
Uniformed behavior in Update
and Delete
method in TMVCActiveRecord
. Now these methods raise an exception if the record doesn't exists anymore in the table (update or delete statements return AffectedRows
= 0). The behavior can be altered using the new parameter in the call, which by default is true
.
WARNING! This change could raise some incompatibilities with the previous version, however this is the correct behavior. Consider the previous one a "incorrect behavior to fix".
Fix https://github.com/danieleteti/delphimvcframework/issues/489
Fix https://github.com/danieleteti/delphimvcframework/issues/518 (Thanks to Microcom-Bjarne)
Fix https://github.com/danieleteti/delphimvcframework/issues/526 (Thanks to David Moorhouse)
Fix https://github.com/danieleteti/delphimvcframework/issues/544 (Thanks to David Moorhouse)
Fix https://github.com/danieleteti/delphimvcframework/issues/542 (Thanks to Lamberto Lodi for the hints)
Fix https://github.com/danieleteti/delphimvcframework/issues/485
Fixed fileupload sample
Fixed an IFDEF
compatibility problem on mobile platforms (Thanks to Marco Cotroneo)
Samples are syntax compatible with Delphi 10.1 Berlin or better (Thanks to Mark Lobanov)
Fix https://github.com/danieleteti/delphimvcframework/issues/573 (Thanks to DeddyH the hints)
Fix https://github.com/danieleteti/delphimvcframework/issues/574 (Thanks to DeddyH the hints)
TMVCJWTAuthenticationMiddleware
- was deprecated since 2019. Just use the other one as suggested.IMVCMiddleware.OnAfterControllerAction
This version is the version referenced by the DelphiMVCFramework - The Official Guide book (available in english, portuguese and spanish).
This version introduced new features in many different areas (swagger, server side view, MVCActiveRecord, renders etc.) however there is no a single-big-feature. This version contains also a good number of bugfixes. It's not a critical updated, but this is the best version ever (at least, so far...) and is the suggested version for starting new projects. Enjoy!
New Context: TWebContext
parameter in JSON-RPC Hooks
{ Called before any actual routing }
procedure OnBeforeRoutingHook(const Context: TWebContext; const JSON: TJsonObject);
{ Called after routing and before the actual remote method invocation }
procedure OnBeforeCallHook(const Context: TWebContext; const JSON: TJsonObject);
{ Called after actual remote method invocation, even if the method raised an exception }
procedure OnAfterCallHook(const Context: TWebContext; const JSON: TJsonObject);
When a JSON-RPC Request returns a System.Boolean
the result
will be a JSON true
or false
and no 1
or 0
as it was in the 3.2.0-boron
.
IMVCJSONRPCExecutor.ExecuteNotification
returns a IJSONRPCResponse
. In case of error response contains information about the error, in case of successful execution the response is a Null Object.
New React demo (Thanks to Angelo Sobreira da Silva)
Serialization support for TList<Integer>
, TList<String>
, TList<Boolean>
and for all TList<T>
of simple types.
Added method MetadataAsJSONObject(FieldNameCase: TMVCNameCase = ncLowerCase): TJSONObject;
in TDataSetHelper
. This method returns the dataset field definitions. While this is valid only for Delphi datasets, can be useful to describe a dataset to a Delphi client.
{
"fielddefs": [
{
"datatype": 3,
"displayname": "ID",
"fieldname": "id",
"precision": 0,
"size": 0
},
{
"datatype": 24,
"displayname": "CODE",
"fieldname": "code",
"precision": 0,
"size": 5
},
{
"datatype": 24,
"displayname": "DESCRIPTION",
"fieldname": "description",
"precision": 0,
"size": 200
},
{
"datatype": 37,
"displayname": "PRICE",
"fieldname": "price",
"precision": 18,
"size": 2
}
]
}
The static method class procedure TFireDACUtils.CreateDatasetFromMetadata( AFDMemTable: TFDMemTable; AMeta: TJSONObject);
gets the previous structure and initialize the fields of AFDMemTable
with it. When a TFDMemTable is initialized using this approach, the data can be directly loaded from a jsonarray of jsonobject with the same field names. WARNING: This mechanism works only for Delphi clients. Check sample articles_crud_vcl_client_meta.dproj
to understand the involved mechanisms.
Added foReadOnly
and foWriteOnly
as field options in MVCTableField
attribute (used by TMVCActiveRecord
). Currently available field options are:
Now it is possible to declare entities like the followings (or with any other combinations):
[MVCNameCase(ncLowerCase)]
[MVCTable('articles')]
TArticleWithWriteOnlyFields = class(TCustomEntity)
private
[MVCTableField('ID', [foPrimaryKey, foAutoGenerated])]
fID: NullableInt32;
[MVCTableField('description', [foWriteOnly])]
fDescription: string;
[MVCTableField('price', [foWriteOnly])]
fPrice: Integer;
public
property ID: NullableInt32 read fID write fID;
property Description: string read fDescription write fDescription;
property Price: Integer read fPrice write fPrice;
end;
[MVCNameCase(ncLowerCase)]
[MVCTable('articles')]
TArticleWithReadOnlyFields = class(TCustomEntity)
private
[MVCTableField('ID', [foPrimaryKey, foReadOnly])]
fID: NullableInt32;
fCode: NullableString;
[MVCTableField('description', [foReadOnly])]
fDescrizione: string;
[MVCTableField('price', [foReadOnly])]
fPrice: Currency;
public
property ID: NullableInt32 read fID write fID;
property Code: NullableString read fCode write fCode;
property Description: string read fDescription write fDescription;
property Price: Currency read fPrice write fPrice;
end;
Added the ability to deserialize an object, or alist of objects, starting from an arbitrary node in the JSON (or other format) present in the request body. Works for BodyAs<T>
and for BodyAsListOf<T>
(Thanks to Raphaël Emourgeon for the BodyAsListOf<T>
implementation).
procedure TBooksController.CreateBook;
var
lBook: TBook;
begin
//this call deserialize a TBook instance
//starting from the 'book' node of
//the request body
lBook := Context.Request.BodyAs<TBook>('book');
try
lBook.Insert;
Render201Created('/api/books/' + lBook.ID.ToString);
finally
lBook.Free;
end;
end;
Improved the primary key type handling for manual handling in MVCActiveRecord.
procedure TMyBaseEntity.OnBeforeInsert;
begin
inherited;
//regardless the name of the PK field
//the following code fills the PK with a GUID
//Inheriting the other entities from this, all
//will inherit this behavior.
SetPK(TValue.From<NullableString>(TGUID.NewGuid.ToString));
//if the PK was a simple string, the code
//should be like the following
//SetPK(TGUID.NewGuid.ToString);
end;
Improved activerecord_showcase
sample.
Improved TMVCStaticFilesMiddleware
. Now is able to correctly serve SPA applications from any subfolder.
Added property Context.HostingFrameworkType
. This property is of type TMVCHostingFrameworkType
and can assume one of the following values: hftIndy
(if the service is using the built-in Indy HTTP server) , hftApache
(if the project is compiled as Apache module) or hftISAPI
(if the project is compiled as ISAPI module).
TMVCNameCase
got the new ncSnakeCase
among the possibles casing (thanks to João Antônio Duarte for its work in this area).
Now the TMVCNameCase
declaration is the following:
TMVCNameCase = (ncAsIs, ncUpperCase, ncLowerCase, ncCamelCase, ncPascalCase, ncSnakeCase);
Here's how the new ncSnakeCase
works
Original | SnakeCase |
---|---|
OneTwo | one_two |
One__Two | one_two |
OneTwo03 | one_two_03 |
Support for Mustache partials (Thanks to David Moorhouse and his work about issue 221). Sample \samples\serversideviews_mustache has been updated to show how to use partials.
Added dynamic properties access to TMVCActiveRecord
descendants. Indexed property Attributes
is index using the property name and set/get a TValue
representing the property value.
procedure TMainForm.btnAttributesClick(Sender: TObject);
var
lCustomer: TCustomer;
lID: Integer;
begin
lCustomer := TCustomer.Create;
try
lCustomer.Attributes['CompanyName'] := 'Google Inc.';
lCustomer.Attributes['City'] := 'Montain View, CA';
lCustomer.Attributes['Note'] := 'Hello there!';
lCustomer.Attributes['Code'] := 'XX123';
lCustomer.Attributes['Rating'] := 3;
lCustomer.Insert;
lID := lCustomer.ID;
finally
lCustomer.Free;
end;
lCustomer := TMVCActiveRecord.GetByPK<TCustomer>(lID);
try
Assert('Google Inc.' =
lCustomer.Attributes['CompanyName']
.AsType<NullableString>().Value);
Assert('Montain View, CA' =
lCustomer.Attributes['City'].AsString);
Assert('XX123' =
lCustomer.Attributes['Code']
.AsType<NullableString>().Value);
Assert('Hello there!' =
lCustomer.Attributes['Note'].AsString);
lCustomer.Update;
finally
lCustomer.Free;
end;
Breaking Change! TMVCStaticFileMiddleware
cannot be registered to "/" anymore
Breaking Change! DocumentRoot
of TMVCStaticFileMiddleware
must be a valid folder. If DocumentRoot
doesn't exist an exception is raised.
Fix for issue 421
Fix for issue 424
Fix for issue436.
Fix for issue432
Fix for issue434 (Thanks to David Moorhouse for his detailed analysis)
Fix for issue221
Fix for issue444
Fix for issue408 a.k.a. docExpansion parameter for Swagger
New! Support for Delphi 10.4 Sydney!
New! Added Nullable support in MVCActiveRecord (nullables defined in MVCFramework.Nullables.pas
)! Check activerecord_showcase sample.
New! Added non autogenerated primary keys in MVCActiveRecord! Check activerecord_showcase sample.
New! Complete support for nullable types in the default serializer (nullables defined in MVCFramework.Nullables.pas
)
New! Added ncCamelCase
and ncPascalCase
to the available attribute formatters.
MVCNameCase | Property/Field Name | Rendered Name |
---|---|---|
ncUpperCase | Cod_Article | COD_ARTICLE |
ncLowerCase | Cod_Article | cod_article |
ncPascalCase | Cod_Article | CodArticle |
ncPascalCase | CodArticle | CodArticle |
ncPascalCase | _WITH__UNDERSCORES_ |
WithUnderscores |
ncCamelCase | Cod_Article | codArticle |
ncCamelCase | CodArticle | codArticle |
ncCamelCase | _WITH__UNDERSCORES_ |
WithUnderscores |
New! Added Swagger support (thanks to João Antônio Duarte and Geoffrey Smith)
New! Attribute MVCDoNotDeserialize
. If marked with this RTTI attribute, a property or a field is not deserialized and its value remain the same as was before the object deserialization.
New! Added SQLGenerator and RQL compiler for PostgreSQL, SQLite and MSSQLServer (in addition to MySQL, MariaDB, Firebird and Interbase)
New! MVCNameAs attribute got the param Fixed
(default: false). If Fixed
is true, then the name is not processed by the MVCNameCase
attribute assigned to the owner type.
New! Added support for interfaces serialization - now it is possible to serialize Spring4D collections (thanks to João Antônio Duarte)
New! Added support for rendering Spring4D Nullable Types - (thanks to João Antônio Duarte)
New! Added OnRouterLog
event to log custom information for each request (thanks to Andrea Ciotti for the first implementation and its PR)
New! Optionally load system controllers (those who provide /describeserver.info
, /describeplatform.info
and /serverconfig.info
system actions) setting Config[TMVCConfigKey.LoadSystemControllers] := 'false';
in the configuration block.
Improved! Now the router consider Accept:*/*
compatible for every MVCProduces
values.
Improved! Greatly improved support for HATEOAS in renders. Check TRenderSampleController.GetPeople_AsObjectList_HATEOS
and all the others actions end with HATEOS
in renders.dproj
sample).
//Now is really easy to add "links" property automatically for each collection element while rendering
Render<TPerson>(People, True,
procedure(const APerson: TPerson; const Links: IMVCLinks)
begin
Links.AddRefLink
.Add(HATEOAS.HREF, '/people/' + APerson.ID.ToString)
.Add(HATEOAS.REL, 'self')
.Add(HATEOAS._TYPE, 'application/json')
.Add('title', 'Details for ' + APerson.FullName);
Links.AddRefLink
.Add(HATEOAS.HREF, '/people')
.Add(HATEOAS.REL, 'people')
.Add(HATEOAS._TYPE, 'application/json');
end);
//Datasets have a similar anon method to do the same thing
Render(lDM.qryCustomers, False,
procedure(const DS: TDataset; const Links: IMVCLinks)
begin
Links.AddRefLink
.Add(HATEOAS.HREF, '/customers/' + DS.FieldByName('cust_no').AsString)
.Add(HATEOAS.REL, 'self')
.Add(HATEOAS._TYPE, 'application/json');
Links.AddRefLink
.Add(HATEOAS.HREF, '/customers/' + DS.FieldByName('cust_no').AsString + '/orders')
.Add(HATEOAS.REL, 'orders')
.Add(HATEOAS._TYPE, 'application/json');
end);
//Single object rendering allows HATEOAS too!
Render(lPerson, False,
procedure(const AObject: TObject; const Links: IMVCLinks)
begin
Links.AddRefLink
.Add(HATEOAS.HREF, '/people/' + TPerson(AObject).ID.ToString)
.Add(HATEOAS.REL, 'self')
.Add(HATEOAS._TYPE, TMVCMediaType.APPLICATION_JSON);
Links.AddRefLink
.Add(HATEOAS.HREF, '/people')
.Add(HATEOAS.REL, 'people')
.Add(HATEOAS._TYPE, TMVCMediaType.APPLICATION_JSON);
end);
packages
folder)TMVCActiveRecord.Count
method (e.g. TMVCActiveRecord.Count(TCustomer)
returns the number of records for the entity mapped by the class TCustomer
)TMVCACtiveRecord.GetByPK<T>
raises an exception by default if the record is not found - optionally can returns nil
using new parameter RaiseExceptionIfNotFound
contains
clause has been added in the RQL compiler for Firebird and InterbaseTMVCAnalyticsMiddleware
to do automatic analytics on the API (generates a CSV file). Based on an idea by Nirav Kaku (https://www.facebook.com/nirav.kaku). Check the sample in \samples\middleware_analytics\
TMVCActiveRecord.DeleteAll
deletes all the records from a tableTMVCActiveRecord.DeleteRQL
deletes records using an RQL
expression as where
clause.TMVCActiveRecord.Store
which automatically executes Insert or Update considering primary key value.TMVCActiveRecord
allows to use table name and field name with spaces (currently supported only by the PostgreSQL compiler).MVCActiveRecord
and RQL (thanks to one of the biggest Delphi based company in Italy which heavily uses DMVCFramework and DMSContainer).MVCActiveRecord
and RQL, so that MVCActiveRecord
can be used also for Delphi mobile projects!JsonDataObjects.TJSONObject
without using string
as carrier of JSON.ActiveRecordShowCase
sample is much better now.ActiveRecord
methods which retrieve records can now specify the data type of each parameter (using Delphi's TFieldType
enumeration).TMVCEngine
is compliant with the default response content-type (usually it did would reply using text/plain
).LogD(lMyObject)
to get logged lMyObject
as JSON (custom type serializers not supported in log).StrDict(array of string, array of string)
function allows to render a dictionary of strings in a really simple way. See the following action sample.procedure TMy.GetPeople(const Value: Integer);
begin
if Value mod 2 <> 0 then
begin
raise EMVCException.Create(HTTP_STATUS.NotAcceptable, 'We don''t like odd numbers');
end;
Render(
StrDict(
['id', 'message'],
['123', 'We like even numbers, thank you for your ' + Value.ToString]
));
end;
application/json
.TMVCListener
(Thanks to Sven Harazim).in
operator in RQL parser (Thank you to João Antônio Duarte for his initial work on this).TMVCActiveRecord.Count<T>(RQL)
to count record based on RQL criteria.TMVCActiveRecord
can handle non autogenerated primary key.X-HTTP-Method-Override
to work behind corporate firewalls.procedure TDataSetHelper.LoadJSONArrayFromJSONObjectProperty(const AJSONObjectString: string; const aPropertyName: String);
HTTP_STATUS
to better describe the http status response.CreateInsert
if not autogenerated.TArray<String>
, TArray<Integer>
and TArray<Double>
in default JSON serializer (Thank you Pedro Oliveira)OnBeforeDispatch
(Thanks to Spinettaro)StrToJSONObject
function to safely parse a string into a JSON object.TDataSet
descendants serialization in TMVCJsonDataObjectsSerializer
.procedure TMainForm.btnDataSetToJSONArrayClick(Sender: TObject);
var
lSer: TMVCJsonDataObjectsSerializer;
lJArray: TJSONArray;
begin
FDQuery1.Open();
lSer := TMVCJsonDataObjectsSerializer.Create;
try
lJArray := TJSONArray.Create;
try
lSer.DataSetToJsonArray(FDQuery1, lJArray, TMVCNameCase.ncLowerCase, [],
procedure(const aField: TField; const aJsonObject: TJSONObject; var Handled: Boolean)
begin
if SameText(aField.FieldName, 'created_at') then
begin
aJsonObject.S['year_and_month'] := FormatDateTime('yyyy-mm', TDateTimeField(aField).Value);
Handled := True;
end;
end);
//The json objects will not contains "created_at" anymore, but only "year_and_month".
Memo1.Lines.Text := lJArray.ToJSON(false);
finally
lJArray.Free;
end;
finally
lSer.Free;
end;
end;
New! Shortcut render' methods which simplify RESTful API development
procedure Render201Created(const Location: String = ''; const Reason: String = 'Created'); virtual;
procedure Render202Accepted(const HREF: String; const ID: String; const Reason: String = 'Accepted'); virtual;
procedure Render204NoContent(const Reason: String = 'No Content'); virtual;
Added de/serializing iterables (e.g. generic lists) support without MVCListOf
attribute (Thank you to João Antônio Duarte).
It is now possible to deserialize a generic class like this:
TGenericEntity<T: class> = class
private
FCode: Integer;
FItems: TObjectList<T>;
FDescription: string;
public
constructor Create;
destructor Destroy; override;
property Code: Integer read FCode write FCode;
property Description: string read FDescription write FDescription;
// MVCListOf(T) <- No need
property Items: TObjectList<T> read FItems write FItems;
end;
Before it was not possible because you should add the MVCListOf
attribute to the TObjectList
type property.
New! Added serialization support for (thanks to dockerandy for his initial work)
TArray<String>
TArray<Integer>
TArray<Int64>
TArray<Double>
New! The MVCAREntitiesGenerator can optionally register all the generated entities also in the ActiveRecordMappingRegistry
(Thanks to Fabrizio Bitti from bit Time Software)
New! Experimental (alpha stage) support for Android servers!
New! Children objects lifecycle management in TMVCActiveRecord
(methods AddChildren
and RemoveChildren
). Really useful to manage child objects such relations or derived properties and are safe in case of multiple addition of the same object as children.
//Having the following declaration
type
[MVCNameCase(ncCamelCase)]
[MVCTable('authors')]
TAuthor = class(TPersonEntityBase)
private
fBooks: TEnumerable<TBookRef>;
[MVCTableField('full_name')]
fFullName: string;
function GetBooks: TEnumerable<TBookRef>;
public
[MVCNameAs('full_name')]
property FullName: string read fFullName write fFullName;
property Books: TEnumerable<TBookRef> read GetBooks;
end;
//method GetBooks can be implemented as follows:
implementation
function TAuthor.GetBooks: TEnumerable<TBookRef>;
begin
if fBooks = nil then
begin
fBooks := TMVCActiveRecord.Where<TBookRef>('author_id = ?', [ID]);
AddChildren(fBooks); //fBooks will be freed when self will be freed
end;
Result := fBooks;
end;
JSON-RPC Improvements
New! Added TMVCJSONRPCExecutor.ConfigHTTPClient
to fully customize the inner THTTPClient
(e.g. ConnectionTimeout
, ResponseTimeout
and so on)
Improved! JSONRPC Automatic Object Publishing can not invoke inherited methods if not explicitly defined with MVCInheritable
attribute.
New! Calling <jsonrpcendpoint>/describe
returns the methods list available for that endpoint.
New! Full support for named parameters in JSON-RPC call (server and client)
Positional parameters example
procedure TMainForm.btnSubtractClick(Sender: TObject);
var
lReq: IJSONRPCRequest;
lResp: IJSONRPCResponse;
begin
lReq := TJSONRPCRequest.Create;
lReq.Method := 'subtract';
lReq.RequestID := Random(1000);
lReq.Params.Add(StrToInt(edtValue1.Text));
lReq.Params.Add(StrToInt(edtValue2.Text));
lResp := FExecutor.ExecuteRequest(lReq);
edtResult.Text := lResp.Result.AsInteger.ToString;
end;
Named parameters example
procedure TMainForm.btnSubtractWithNamedParamsClick(Sender: TObject);
var
lReq: IJSONRPCRequest;
lResp: IJSONRPCResponse;
begin
lReq := TJSONRPCRequest.Create;
lReq.Method := 'subtract';
lReq.RequestID := Random(1000);
lReq.Params.AddByName('Value1', StrToInt(Edit1.Text));
lReq.Params.AddByName('Value2', StrToInt(Edit2.Text));
lResp := FExecutor.ExecuteRequest(lReq);
Edit3.Text := lResp.Result.AsInteger.ToString;
end;
Check official JSONRPC 2.0 documentation for more examples.
New! JSONRPC Hooks for published objects
//Called before as soon as the HTTP arrives
procedure TMyPublishedObject.OnBeforeRouting(const JSON: TJDOJsonObject);
//Called before the invoked method
procedure TMyPublishedObject.OnBeforeCall(const JSONRequest: TJDOJsonObject);
//Called just before to send response to the client
procedure TMyPublishedObject.OnBeforeSendResponse(const JSONResponse: TJDOJsonObject);
Deprecated! TDataSetHolder
is deprecated! Use the shining new ObjectDict(boolean)
instead.
New! ObjectDict function is the suggested way to render all the most common data types. It returns a IMVCObjectDictionary
which is automatically rendered by the renders. Check the renders.dproj
sample. Here's some example of the shining new ObjectDict()
.
Example 1: Rendering a list of objects not freeing them after rendering
Classic
procedure TRenderSampleController.GetLotOfPeople;
begin
Render<TPerson>(GetPeopleList, False);
end;
New approach with ObjectDict
procedure TRenderSampleController.GetLotOfPeople;
begin
Render(ObjectDict(False).Add('data', GetPeopleList));
end;
Example 2: Rendering a list of objects and automatically free them after rendering
Classic
procedure TRenderSampleController.GetLotOfPeople;
begin
Render<TPerson>(GetPeopleList);
end;
New approach with ObjectDict
procedure TRenderSampleController.GetLotOfPeople;
begin
Render(ObjectDict().Add('data', GetPeopleList));
end;
Example 3: Rendering a list of objects adding links for HATEOAS support
Classic
procedure TRenderSampleController.GetPeople_AsObjectList_HATEOAS;
var
p: TPerson;
People: TObjectList<TPerson>;
begin
People := TObjectList<TPerson>.Create(True);
{$REGION 'Fake data'}
p := TPerson.Create;
p.FirstName := 'Daniele';
p.LastName := 'Teti';
p.DOB := EncodeDate(1979, 8, 4);
p.Married := True;
People.Add(p);
p := TPerson.Create;
p.FirstName := 'John';
p.LastName := 'Doe';
p.DOB := EncodeDate(1879, 10, 2);
p.Married := False;
People.Add(p);
p := TPerson.Create;
p.FirstName := 'Jane';
p.LastName := 'Doe';
p.DOB := EncodeDate(1883, 1, 5);
p.Married := True;
People.Add(p);
{$ENDREGION}
Render<TPerson>(People, True,
procedure(const APerson: TPerson; const Links: IMVCLinks)
begin
Links
.AddRefLink
.Add(HATEOAS.HREF, '/people/' + APerson.ID.ToString)
.Add(HATEOAS.REL, 'self')
.Add(HATEOAS._TYPE, 'application/json')
.Add('title', 'Details for ' + APerson.FullName);
Links
.AddRefLink
.Add(HATEOAS.HREF, '/people')
.Add(HATEOAS.REL, 'people')
.Add(HATEOAS._TYPE, 'application/json');
end);
end;
New approach with ObjectDict
procedure TRenderSampleController.GetPeople_AsObjectList_HATEOAS;
var
p: TPerson;
People: TObjectList<TPerson>;
begin
People := TObjectList<TPerson>.Create(True);
{$REGION 'Fake data'}
p := TPerson.Create;
p.FirstName := 'Daniele';
p.LastName := 'Teti';
p.DOB := EncodeDate(1979, 8, 4);
p.Married := True;
People.Add(p);
p := TPerson.Create;
p.FirstName := 'John';
p.LastName := 'Doe';
p.DOB := EncodeDate(1879, 10, 2);
p.Married := False;
People.Add(p);
p := TPerson.Create;
p.FirstName := 'Jane';
p.LastName := 'Doe';
p.DOB := EncodeDate(1883, 1, 5);
p.Married := True;
People.Add(p);
{$ENDREGION}
Render(ObjectDict().Add('data', People,
procedure(const APerson: TObject; const Links: IMVCLinks)
begin
Links
.AddRefLink
.Add(HATEOAS.HREF, '/people/' + TPerson(APerson).ID.ToString)
.Add(HATEOAS.REL, 'self')
.Add(HATEOAS._TYPE, 'application/json')
.Add('title', 'Details for ' + TPerson(APerson).FullName);
Links
.AddRefLink
.Add(HATEOAS.HREF, '/people')
.Add(HATEOAS.REL, 'people')
.Add(HATEOAS._TYPE, 'application/json');
end));
end;
ObjectDict
is able to render multiple data sources (datasets, objectlists, objects or StrDict) at the same time using different casing, HATEOAS callbacks and modes.
procedure TTestServerController.TestObjectDict;
var
lDict: IMVCObjectDictionary;
begin
lDict := ObjectDict(false)
.Add('ncUpperCase_List', GetDataSet, nil, dstAllRecords, ncUpperCase)
.Add('ncLowerCase_List', GetDataSet, nil, dstAllRecords, ncLowerCase)
.Add('ncCamelCase_List', GetDataSet, nil, dstAllRecords, ncCamelCase)
.Add('ncPascalCase_List', GetDataSet, nil, dstAllRecords, ncPascalCase)
.Add('ncUpperCase_Single', GetDataSet, nil, dstSingleRecord, ncUpperCase)
.Add('ncLowerCase_Single', GetDataSet, nil, dstSingleRecord, ncLowerCase)
.Add('ncCamelCase_Single', GetDataSet, nil, dstSingleRecord, ncCamelCase)
.Add('ncPascalCase_Single', GetDataSet, nil, dstSingleRecord, ncPascalCase)
.Add('meta', StrDict(['page'], ['1']));
Render(lDict);
end;
ObjectDict is the suggested way to renders data. However, the other ones are still there and works as usual.
Added ability to serialize/deserialize types enumerated by an array of mapped values (Thanks to João Antônio Duarte).
type
TMonthEnum = (meJanuary, meFebruary, meMarch, meApril);
TEntityWithEnums = class
private
FMonthMappedNames: TMonthEnum;
FMonthEnumName: TMonthEnum;
FMonthOrder: TMonthEnum;
public
// List items separated by comma or semicolon
[MVCEnumSerializationType(estEnumMappedValues,
'January,February,March,April')]
property MonthMappedNames: TMonthEnum
read FMonthMappedNames write FMonthMappedNames;
[MVCEnumSerializationType(estEnumName)]
property MonthEnumName: TMonthEnum
read FMonthEnumName write FMonthEnumName;
[MVCEnumSerializationType(estEnumOrd)]
property MonthOrder: TMonthEnum read FMonthOrder write FMonthOrder;
end;
...
New Installation procedure!
dmvcframeworkDT
)C:\DEV\dmvcframework
is the dmvcframework
main folder)
C:\DEV\dmvcframework\sources
C:\DEV\dmvcframework\lib\loggerpro
C:\DEV\dmvcframework\lib\swagdoc\Source
C:\DEV\dmvcframework\lib\dmustache
Delphi Version | Project Group |
---|---|
Delphi 10.4 Sydney | packages\d104\dmvcframework_group.groupproj |
Delphi 10.3 Rio | packages\d103\dmvcframework_group.groupproj |
Delphi 10.2 Tokyo | packages\d102\dmvcframework_group.groupproj |
Delphi 10.1 Berlin | packages\d101\dmvcframework_group.groupproj |
Delphi 10.0 Seattle | packages\d100\dmvcframework_group.groupproj |
In MVCActiveRecord
attribute MVCPrimaryKey
has been removed and merged with MVCTableField
, so now TMVCActiveRecordFieldOption
is a set of foPrimaryKey
, foAutoGenerated
, foTransient
(check activerecord_showcase.dproj
sample).
Middleware OnAfterControllerAction
are now invoked in the same order of OnBeforeControllerAction
(previously were invoked in reversed order).
TMVCEngine
is no more responsible for static file serving. If you need static files used the new TMVCStaticFilesMiddleware
(check the sample). As consequence TMVCConfigKey.DocumentRoot
, TMVCConfigKey.IndexDocument
and TMVCConfigKey.FallbackResource
are no more available.
TMVCEngine.Config
property is now read-only. Can be changed only in the anonymous method injected in the constructor.
// This is valid
////////////////////////////////////////
FMVC := TMVCEngine.Create(Self,
procedure(Config: TMVCConfig)
begin
// session timeout (0 means session cookie)
Config[TMVCConfigKey.SessionTimeout] := '0';
//Other Configurations
end);
FMVC.AddController(TMyController);
// This is not valid (exception is raised)
/////////////////////////////////////////
FMVC := TMVCEngine.Create(Self);,
FMVC.Config[TMVCConfigKey.SessionTimeout] := '0'; {run-time error here}
FMVC.AddController(TMyController);
TMVCActiveRecord
frameworkTMVCActiveRecordController
with automatic RESTful interface generation and permissions handlingTMVCActiveRecordController
to handle complex casesTDataSetHolder
404
and 500
status code returns always a text/plain
content-typeMAX_REQUEST_SIZE
can now limit the size of the incoming HTTP requests.TMVCResponse
can handle generic (non error) responsesgzip
compression support in addition to deflate
in TCompressionMiddleware
TCompressionMiddleware
has been renamed in TMVCCompressionMiddleware
samples\renders_spring4d_nullables
)TMVCJSONRPCPublisher
allows to easily expose plain Delphi objects (and even data modules) through a JSON-RPC 2.0 interface!TJSONBool
(Delphi XE8 or older)DMVCFRAMEWORK_VERSION
defined in MVCFramework.Commons.pas
DelphiMVCFramework roadmap is always updated as-soon-as the features planned are implemented. Check the roadmap here.
As you know, good support on open source software is a must for professional users. If you need trainings, consultancy or custom developments on DelphiMVCFramework, send an email to dmvcframework at bittime dot it. Alternatively you can send a request using the contacts forms on bit Time Professionals website. bit Time Professionals is the company behind DelphiMVCFramework, the lead developer works there.
DMVCFramework is provided with a lot of examples focused on specific functionality. All samples are in Samples folder.
DMVCFramework allows to create powerful RESTful servers without effort. You can create a full-flagged RESTful server in a couple of clicks.
DMVCFramework must be installed using the Github release. Download the zip file
Unzip it the release zip in a folder named C:\dmvc
(or where you prefer).
Launch RAD Studio and open C:\dmvc\packages\d104\dmvcframework_group.groupproj
WARNING! In the last path shown "d104" is for Delphi 10.4 Sydney. Use the correct package for your Delphi version.
Install the package and close all
Now, DMVCFramework expert is installed and you are able to create DMVCFramework project. Go to go to File->New->Other
select Delphi Project->DMVC->DelphiMVCFramework Project
From the resultant dialog, leave all the default settings and click OK
If you try to compile the project now, you will get compiler errors because we've to configure the library paths to let the compiler finds the needed source files
go to Tools->Options->Language->Delphi->Library
and add in the Library Path
the following paths:
Run the project (F9)
Now, a new console application is running serving you first DMVCFramework server.
Simple, isn't it?
The wizard generated controller shown some basic setup and some actions. You can start from here to create your application. Use the huge number of sample to understand how each DMVCFramwork feature work.
Below a basic sample of a DMVCFramework controller with 2 action
unit UsersControllerU;
interface
uses
MVCFramework;
type
[MVCPath('/users')]
TUsersController = class(TMVCController)
public
//The following action will be with a GET request like the following
//http://myserver.com/users/3
[MVCPath('/($id)')]
[MVCProduces('application/json')]
[MVCHTTPMethod([httpGET])]
[MVCDoc('Returns a user as a JSON object')]
procedure GetUser(id: Integer);
//The following action will be with a GET request like the following
//http://myserver.com/users
[MVCPath('/')]
[MVCProduces('application/json')]
[MVCHTTPMethod([httpGET])]
[MVCDoc('Returns the users list as a JSON Array of JSON Objects')]
procedure GetUsers;
//The following action will be with a PUT request like the following
//http://myserver.com/users/3
//and in the request body there should be a serialized TUser
[MVCPath('/($id)')]
[MVCProduce('application/json')]
[MVCHTTPMethod([httpPUT])]
[MVCDoc('Update a user')]
procedure UpdateUser(id: Integer);
//The following action will respond to a POST request like the following
//http://myserver.com/users
//and in the request body there should be the new user to create as json
[MVCPath]
[MVCProduce('application/json')]
[MVCHTTPMethod([httpPOST])]
[MVCDoc('Create a new user, returns the id of the new user')]
procedure CreateUser;
end;
implementation
uses
MyTransactionScript; //contains actual data access code
{ TUsersController }
procedure TUsersController.GetUsers;
var
Users: TObjectList<TUser>;
begin
Users := GetUsers;
Render(Users);
end;
procedure TUsersController.GetUser(id: Integer);
var
User: TUser;
begin
User := GetUserById(id);
Render(User);
end;
procedure TUsersController.UpdateUser(id: Integer);
var
User: TUser;
begin
User := Context.Request.BodyAs<TUser>;
UpdateUser(id, User);
Render(User);
end;
procedure TUsersController.CreateUser;
var
User: TUser;
begin
User := Context.Request.BodyAs<TUser>;
CreateUser(User);
Render(User);
end;
end.
Now you have a performant RESTful server wich respond to the following URLs:
If you don't plan to deploy your DMVCFramework server behind a webserver (apache or IIS) you can also pack more than one listener application server into one single executable. In this case, the process is a bit different and involves the creation of a listener context. However, create a new server is a simple task:
uses
MVCFramework.Server,
MVCFramework.Server.Impl;
var
LServerListener: IMVCListener;
begin
LServerListener := TMVCListener.Create(TMVCListenerProperties.New
.SetName('Listener1')
.SetPort(5000)
.SetMaxConnections(1024)
.SetWebModuleClass(YourServerWebModuleClass)
);
LServerListener.Start;
LServerListener.Stop;
end;
If you want to add a layer of security (in its WebModule you should add the security middleware):
uses
MVCFramework.Server,
MVCFramework.Server.Impl,
MVCFramework.Middleware.Authentication;
procedure TTestWebModule.WebModuleCreate(Sender: TObject);
begin
FMVCEngine := TMVCEngine.Create(Self);
// Add Yours Controllers
FMVCEngine.AddController(TYourController);
// Add Security Middleware
FMVCEngine.AddMiddleware(TMVCBasicAuthenticationMiddleware.Create(
TMVCDefaultAuthenticationHandler.New
.SetOnAuthentication(
procedure(const AUserName, APassword: string;
AUserRoles: TList<string>; var IsValid: Boolean;
const ASessionData: TDictionary<String, String>)
begin
IsValid := AUserName.Equals('dmvc') and APassword.Equals('123');
end
)
));
end;
In stand alone mode you can work with a context that supports multiple listeners servers:
uses
MVCFramework.Server,
MVCFramework.Server.Impl;
var
LServerListenerCtx: IMVCListenersContext;
begin
LServerListenerCtx := TMVCListenersContext.Create;
LServerListenerCtx.Add(TMVCListenerProperties.New
.SetName('Listener1')
.SetPort(6000)
.SetMaxConnections(1024)
.SetWebModuleClass(WebModuleClass1)
);
LServerListenerCtx.Add(TMVCListenerProperties.New
.SetName('Listener2')
.SetPort(7000)
.SetMaxConnections(1024)
.SetWebModuleClass(WebModuleClass2)
);
LServerListenerCtx.StartAll;
end;
Resource Query Language (RQL) is a query language designed for use in URIs with object style data structures. DMVCFramework supports RQL natively and the included MVCActiveRecord micro-framework, implement a large subset of the RQL specs.
RQL can be thought as basically a set of nestable named operators which each have a set of arguments. RQL is designed to have an extremely simple, but extensible grammar that can be written in a URL friendly query string. A simple RQL query with a single operator that indicates a search for any resources with a property of "foo" that has value of 5 could be written:
eq(foo,5)
A more complex filter can include an arbitrary number of chained functions
or(and(eq(name,"daniele"),eq(surname,"teti")),and(eq(name,"peter"),eq(surname,"parker"));sort(+name)
Which is translated (details depends from the RDBMS) in the following SQL.
select
name, surname {other fields}
from
people
where
(name = "daniele" and surname = "teti")
or
(name="peter" and surname = "parker")
order by
name asc
RQL is designed for modern application development. It is built for the web, ready for NoSQL, and highly extensible with simple syntax.
Here is a definition of the common operators as implemented in DMVCFramework' ActiveRecord:
eq(<property>,<value>) - Filters for objects where the specified property's value is equal to the provided value
lt(<property>,<value>) - Filters for objects where the specified property's value is less than the provided value
le(<property>,<value>) - Filters for objects where the specified property's value is less than or equal to the provided value
gt(<property>,<value>) - Filters for objects where the specified property's value is greater than the provided value
ge(<property>,<value>) - Filters for objects where the specified property's value is greater than or equal to the provided value
ne(<property>,<value>) - Filters for objects where the specified property's value is not equal to the provided value
and(<query>,<query>,...) - Applies all the given queries
or(<query>,<query>,...) - The union of the given queries
sort(<+|-><property) - Sorts by the given property in order specified by the prefix (+ for ascending, - for descending)
limit(count,start,maxCount) - Returns the given range of objects from the result set
contains(<property>,<value | expression>) - Filters for objects where the specified property's value is an array and the array contains any value that equals the provided value or satisfies the provided expression.
in(<property>,<array-of-values>) - Filters for objects where the specified property's value is in the provided array
out(<property>,<array-of-values>) - Filters for objects where the specified property's value is not in the provided array
Not Yet Availables
select(<property>,<property>,...) - Trims each object down to the set of properties defined in the arguments
values(<property>) - Returns an array of the given property value for each object
aggregate(<property|function>,...) - Aggregates the array, grouping by objects that are distinct for the provided properties, and then reduces the remaining other property values using the provided functions
distinct() - Returns a result set with duplicates removed
excludes(<property>,<value | expression>) - Filters for objects where the specified property's value is an array and the array does not contain any of value that equals the provided value or satisfies the provided expression.
rel(<relation name?>,<query>) - Applies the provided query against the linked data of the provided relation name.
sum(<property?>) - Finds the sum of every value in the array or if the property argument is provided, returns the sum of the value of property for every object in the array
mean(<property?>) - Finds the mean of every value in the array or if the property argument is provided, returns the mean of the value of property for every object in the array
max(<property?>) - Finds the maximum of every value in the array or if the property argument is provided, returns the maximum of the value of property for every object in the array
min(<property?>) - Finds the minimum of every value in the array or if the property argument is provided, returns the minimum of the value of property for every object in the array
recurse(<property?>) - Recursively searches, looking in children of the object as objects in arrays in the given property value
first() - Returns the first record of the query's result set
one() - Returns the first and only record of the query's result set, or produces an error if the query's result set has more or less than one record in it.
count() - Returns the count of the number of records in the query's result set
Since 3.4.0-neon dmvcframework supports dotEnv configuration files.
TL:DR "Read key-value pairs from a .env file and set them as environment variables"
The format is not formally specified and still improves over time. That being said, .env files should mostly look like Bash files.
Keys can be unquoted or single-quoted. Values can be unquoted, single- or double-quoted. Spaces before and after keys, equal signs, and values are ignored. Values can be followed by a comment.
Variable expansion dmvcframework' dotEnv can interpolate variables using POSIX variable expansion.
This is a valid .env file:
############
# ENV FILE #
############
mode=dev
#DB Name
dbhostname=my_product_db_dev
#The DB username
dbuser=my_user
#The DB password (in this example is read from an EnvVariable)
dbpassword="XYZ${USERNAME}!$"
#DB Hostname
dbhostname="127.0.0.1"
#user preferences
user_preferences_path=${APPDATA}
email_template="This is a ${mode} email template
second template email line
third template email line"
Utilization
var dotEnv := NewDotEnv
.WithStrategy(TMVCDotEnvPriority.EnvThenFile)
.UseProfile('prod')
.Build();
mmVars.Clear;
mmVars.Lines.AddStrings(dotEnv.ToArray);
Feel free to ask questions on the "Delphi MVC Framework" facebook group (https://www.facebook.com/groups/delphimvcframework).