Thursday, 26 January 2012

Generating Vfpage Dynamically and Saving data in to object ,with out using Object Name.

Hai Friends,

       I Came with new example that is generating Vfpage dynamically and saving data in to object.

  Follow the steps,

  1. Create Custom settings----> Dynamic Page Controll.

                 Create Two fields in custom settings 1. ObjectName   2. Field Name.

  2. Enter Records in to Custom settings ,

                   Object Name                     Field Name

                       Account                            Name

                       Account                            Email
3.   Copy the following class.
======================================================================
    public with sharing class DynamicPageController {
    public map<string,sobject> objmap { get; set; }
    public map<string,list<string>> fieldmap { get; set; }
    public DynamicPageController() {
        objmap = new map<string,sobject>();
        fieldmap = new map<string,list<string>>();
        map<string,schema.sobjecttype> globalDescribe = schema.getglobaldescribe();
        for(Dynamic_Page_Controll__c data:[select FieldName__c,ObjectName__c from Dynamic_Page_Controll__c]) {
            objmap.put(data.object_name__c,globaldescribe.get(data.object_name__c).newsobject());
            if(fieldmap.get(data.object_name__c)==null) {
                fieldmap.put(data.object_name__c,new list<string>());
            }
            fieldmap.get(data.object_name__c).add(data.fieldname__c);
        }
    }
    public void save(){
        try{
              for(sobject s:objmap.values()){
                    insert s;
                }
             }
             catch(Exception ex){
                    ApexPages.Message myMsg = new ApexPages.Message(ApexPages.Severity.ERROR, ex.getMessage());
                    ApexPages.addMessage(myMsg);
             }
    }
}


In the above controller ,we are querying data from custom settings and building two maps,one for fields and another for object name and save method for saving records.

Page:-
==============================================================

<apex:page controller="DynaPageController" >
    <apex:form >
    <apex:pagemessages />
          <apex:pageBlock title="Dynamic Page" >
                <!-- Perform the Save Action -->
                <apex:pageBlockButtons location="Bottom">
                    <apex:commandButton value="Save" action="{!save}"/>
                </apex:pageBlockButtons>
            <!-- To bind both objects and associated field names Dynamically. -->
                <apex:pageBlockSection >
                    <apex:repeat value="{!objmap}" var="obj">
                        <apex:pageBlock title="{!obj}">
                        <apex:pageBlockSection >
                                <apex:repeat value="{!fieldmap[obj]}" var="field">
                                    <apex:inputField value="{!objmap[obj][field]}"/><Br/>
                                </apex:repeat>
                        </apex:pageBlockSection>
                        </apex:pageBlock>
                    </apex:repeat>
                </apex:pageBlockSection>
        </apex:pageBlock>
    </apex:form>
</apex:page>

You can execute the example for multiple objects also.





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