Thank you Ashish. I will try it.
regards
Avijit
On Tue, Jul 12, 2022 at 10:04 AM Ashish Vijaywargiya <
ashish.vijaywarg...@hotwaxsystems.com> wrote:
> Hello Avijit,
>
> You have shared following code snippet in your previous email:
> // Setting up all non primary key field values from context map
> smsSubjectMaster.setNonPKFields(context);
>
> "context" is just a map object from which you can get the parameters passed
> to the service definition in OFBiz.
>
> You can do similar thing in events by using similar code snippet as shown
> below:
>
> Map<String, Object> paramMap = UtilHttp.getParameterMap(request);
> String dataResourceId;
> GenericValue dataResource = delegator.makeValue("DataResource");
> dataResource.setPKFields(paramMap);
> dataResource.setNonPKFields(paramMap);
>
> All the 4 points which you have shared in this email can be taken care of
> either in Events or Services. You might have noticed that "delegator"(Used
> to interact with entities) and "dispatcher"(call services synchronously or
> asynchronously) objects are available in Events as well as in Services. So
> it is our personal choice where we wish to send form data either to Events
> or to Services. As I have said in the previous email that Services in OFBiz
> are session less.
>
> There are some best practices/conventions which are set in OFBiz framework:
>
> - "context" is a map object which is generally used in the *Services.java
> to read the parameters passed to the service definition.
> - The other place where you will see a "context" map is the groovy files.
>
> In groovy files you can prepare the data and put everything in the
> "context" map.
> This data will be used in the form which is included in the screen
> definition.
>
> Hope this helps!
>
> --
> Kind Regards,
> Ashish Vijaywargiya
> Vice President of Operations
> *HotWax Systems*
> *Enterprise open source experts*
> http://www.hotwaxsystems.com
>
>
>
> On Tue, Jul 12, 2022 at 6:22 AM Avijit Bose <bose.avi...@gmail.com> wrote:
>
> > Hi Ashish,
> >
> > I completely understood your explanation. I also have a workable
> > understanding about service and events.
> >
> > Firstly ... I wanted to handle and manipulate request data before storing
> > it in the database.
> > Secondly... It is required to insert request data into 10 different
> > entities.
> > Thirdly... I wanted ofbiz to create auto increment of all the primary
> > fields in the database of all 10 tables and not to create them myself.
> > Fourthly... It is required to get primary key of the first table and
> insert
> > into 9 other tables as foreign keys.
> >
> > This is why I was trying to get the "context" in a java event.
> >
> > Anyway I have done it through Servlet and I am able to satisfy all the
> > above 4 conditions.
> >
> > NOTE: If in future ofbiz release, the ofbiz core can be updated, where
> > "context" can be passed from the screen itself as like other parameters,
> > and it can be called in the method ...
> > public static String updateStudent(HttpServletRequest request,
> > HttpServletResponse response) {}, then I think it will be helpful to all
> > users and the coding will be a bit easier.
> >
> > thank you for your help
> > Avijit
> >
> >
> > On Mon, Jul 11, 2022 at 10:09 AM Ashish Vijaywargiya <
> > ashish.vijaywarg...@hotwaxsystems.com> wrote:
> >
> > > Hello Avijit,
> > >
> > > It looks like you are getting confused from the concept of Events and
> > > Services in java. It is very well explained in the OFBiz tutorial:
> > >
> > >
> >
> https://cwiki.apache.org/confluence/display/OFBIZ/OFBiz+Tutorial+-+A+Beginners+Development+Guide+for+18.12
> > >
> > > Now talking about your code snippet:
> > >
> > > You are calling an event from a controller so you need to get all the
> > > parameters from the method
> > request.getParameter("html_form_elements_name").
> > >
> > >
> > > And once you have read all the values in events then from here you
> should
> > > pass these values to the service where you can take care of business
> > logic
> > > and CRUD operations. Basically events are used to do the validations
> and
> > > extra manipulations with the form parameters.
> > >
> > > If you don't want to go with the Events route then you should change
> your
> > > controller.xml entry as shown below:
> > >
> > > <request-map uri="createStudent">
> > > <security https="true" auth="true"/>
> > > <event type="service" invoke="createStudent"/>
> > > <response name="success" type="view" value="newStudent"/>
> > > <response name="error" type="view" value="errorPage"/>
> > > </request-map>
> > >
> > > Here you will notice that I have used the event type as "service" where
> > you
> > > don't need to specify the path of the service. You can specify the
> > service
> > > definition and implement your service either in
> > Java/Groovy/XML(Minilang).
> > > Services in OFBiz are session-less, so if you wish to do handling of
> > > HttpSession object then you need to do it in the Events.
> > >
> > > All these things are very well explained in the tutorial link which I
> > have
> > > shared above. There is also a very good reference available for the
> > > comparison between Events and Services. Please take a look at it.
> > >
> > > Thank you.
> > >
> > > --
> > > Kind Regards,
> > > Ashish Vijaywargiya
> > > Vice President of Operations
> > > *HotWax Systems*
> > > *Enterprise open source experts*
> > > http://www.hotwaxsystems.com
> > >
> > >
> > >
> > > On Sat, Jul 9, 2022 at 7:32 AM Avijit Bose <bose.avi...@gmail.com>
> > wrote:
> > >
> > > > Hi Nicolas,
> > > >
> > > > First... I have a ftl file like this. Here I am calling
> "createStudent"
> > > in
> > > > the controller through "<@ofbizUrl>createStudent</@ofbizUrl>"
> > > > *************************
> > > > <form id="regForm" method="post"
> > > > action="<@ofbizUrl>createStudent</@ofbizUrl>" name="regForm"
> > > > enctype="multipart/form-data">
> > > > <body>
> > > > ..... blah blah blah
> > > > </body>
> > > > </form>
> > > > *************************
> > > >
> > > > Second.... my controller as shown below....
> > > > *************************
> > > > <request-map uri="createStudent">
> > > > <security https="true" auth="true"/>
> > > > <event type="java" path="com.sms.events.StudentServices"
> > > > invoke="createStudent"/>
> > > > <response name="success" type="view" value="newStudent"/>
> > > > <response name="error" type="view" value="errorPage"/>
> > > > </request-map>
> > > > *************************
> > > > Third.... from the controller above I am going to a java file called
> > > > "StudentServices" and invoking a method in the java file called
> > > > "createStudent".
> > > >
> > > >
> > > > Fourth... In the "createStudent" method of the java file... I have
> the
> > > > following...
> > > > **************************
> > > > public static String createStudent(HttpServletRequest request,
> > > > HttpServletResponse response) {
> > > > Delegator delegator = (Delegator) request.getAttribute("delegator");
> > > > LocalDispatcher dispatcher = (LocalDispatcher)
> > > > request.getAttribute("dispatcher");
> > > > GenericValue userLogin = (GenericValue)
> > > > request.getSession().getAttribute("userLogin");
> > > > Map<String, Object> result = ServiceUtil.returnSuccess();
> > > >
> > > > try {
> > > > GenericValue smsSubjectMaster =
> > > > delegator.makeValue("smsSubjectMaster");
> > > > // Auto generating next sequence of studentId primary key
> > > > smsSubjectMaster.setNextSeqId();
> > > > // Setting up all non primary key field values from context
> map
> > > > smsSubjectMaster.setNonPKFields(context);
> > > > // Creating record in database for smsStudentMaster entity
> for
> > > > prepared value
> > > > smsSubjectMaster = delegator.create(smsSubjectMaster);
> > > > //subjectId = smsSubjectMaster.getString("studentId");
> > > > //context.putIfAbsent("subjectId", subjectId);
> > > > context.put("subjectId", subjectId);
> > > > result.put("subjectId",
> > smsSubjectMaster.getString("subjectId"));
> > > > Debug.log("==========smsSubjectMaster record created
> > successfully
> > > > with subjectId: "+smsSubjectMaster.getString("subjectId"));
> > > >
> > > > } catch (GenericEntityException e) {
> > > > Debug.logError(e, module);
> > > > return ServiceUtil.returnError("Error in creating record in
> > > > smsSubjectMaster entity ........" +module);
> > > > }
> > > >
> > > > }
> > > > **************************
> > > > In the try/catch block... pls notice this...
> > > > "smsSubjectMaster.setNonPKFields(context);". This 'context' I am
> > talking
> > > > about. I want the context in this method ...
> > > >
> > > > public static String createStudent(HttpServletRequest request,
> > > > HttpServletResponse response) {
> > > > // I NEED CONTEXT HERE
> > > > }
> > > >
> > > > AND NOT IN THIS METHOD
> > > >
> > > > public static Map<String, Object> createStudent(DispatchContext dctx,
> > > > Map<String, Object> context){
> > > > ?? HERE I AM ALREADY PASSING CONTEXT AND GETTING IT
> > > > }
> > > >
> > > > Now...
> > > >
> > > > I see a 'globalContext' in this link...
> > > >
> > > >
> > >
> >
> https://cwiki.apache.org/confluence/display/OFBIZ/Variables+always+available+in+screen+context
> > > >
> > > > But I think globalcontext is not the same as context. From the link
> > > above I
> > > > could pass the variables mentioned in the link from ftl to java by
> > > setting
> > > > screen parameters, but no parameter named 'context' in the link
> above.
> > > >
> > > > Question: How do I get context in a method where I am passing
> > > > "HttpServletRequest request, HttpServletResponse response" as shown
> > > above.
> > > >
> > > > regards
> > > > Avijit
> > > >
> > > >
> > > > On Fri, Jul 8, 2022 at 1:05 PM Nicolas Malin <
> nicolas.ma...@nereide.fr
> > >
> > > > wrote:
> > > >
> > > > > Hello Avijit,
> > > > >
> > > > > Can you share some peace of code, I didn't understand your ftl to
> > java
> > > ?
> > > > >
> > > > > You have a ftl template and go to java service through request call
> > or
> > > > > you want to call a java code on a ftl code ?
> > > > >
> > > > > Nicolas
> > > > >
> > > > > On 28/06/2022 12:45, Avijit Bose wrote:
> > > > > > Dear Sir,
> > > > > >
> > > > > > Can the 'context' be passed from a ftl file to java?
> > > > > >
> > > > > > I see a 'globalContext' in this link...
> > > > > >
> > > > >
> > > >
> > >
> >
> https://cwiki.apache.org/confluence/display/OFBIZ/Variables+always+available+in+screen+context
> > > > > >
> > > > > > My goal is to use context here..
> > > > > > -----------------------
> > > > > > dbName.setNonPKFields(context);
> > > > > > -------------------------
> > > > > > in a method...
> > > > > > ------------------------
> > > > > > public static String createSubscriber(HttpServletRequest request,
> > > > > > HttpServletResponse response) { }
> > > > > > -----------------------
> > > > > > can I use 'globalContext' in place of 'context'?
> > > > > >
> > > > > > regards
> > > > > > Avijit
> > > > > >
> > > > >
> > > > >
> > > >
> > >
> >
>
