Obtain the value of a field in the controller

I'm going to override the standard controller for my object . Do insertion a new record ( record in base still there is no). Page

<apex:page standardController="CallReportHosp__c" extensions="CtrlCallHospEdit" >
<apex:outputPanel rendered="{!IF($CurrentPage.parameters.theType = 'app', false, true)}" >
            <apex:pageBlockSection columns="2">
                <apex:pageBlockSectionItem >
                    <apex:outputLabel value="{!$ObjectType.CallReportHosp__c.fields.AccountID__c.label}" for="organisation"/>
                    <apex:inputField value="{!CallReportHosp__c.AccountID__c}" id="organisation" >
                         <apex:actionSupport event="onchange" reRender="pblock" status="status" action="{!SelectService}" />
                    </apex:inputField>
                </apex:pageBlockSectionItem>
Controller
public with sharing class CtrlCallHospEdit {

public Boolean booleanValue {get;set;}
pablic CallReportHosp__c rep;

public CtrlCallHospEdit(ApexPages.StandardController controller)
    {
       this.booleanValue=false;
       rep = (CallReportHosp__c)controller.getRecord();

       System.debug(' bool= '+booleanValue);
       SelectService();
    }


public void SelectService(){
system.debug('selectservice=');
        if(rep.AccountID__c !=null)
           { booleanValue = true; System.debug('acc= '+rep.AccountID__c); }
           else {booleanValue=false; System.debug('acc= '+rep.AccountID__c); }
    }
}
I changed value in field AccountID__c in page, but i don't have its value in controller ( i have rep.AccountID__c = null).
I remind you that I need to get the value of the field BEFORE saving the record in the database (before the call Save).
Tell me what I'm doing wrong

December 2, 2019
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Best Answer chosen by Олег Савинков

Dushyant Sonwar

Please try with this one

<apex:actionRegion> <apex:inputfield value="{!rep.AccountID__c}" id="organisation" required="true"> <apex:actionSupport event="onchange" reRender="pblock,,message,contactPanel" status="status" action="{!SelectService}" /> </apex:inputfield> </apex:actionRegion>

<apex:outputPanel id="contactPanel"> <apex:outputLabel rendered="{!Not(rep.AccountId__c == null)}" value="Contact" for="contacts"/> <apex:inputfield value="{!rep.ContactId__c}" rendered="{!Not(rep.AccountId__c == null)}" /> </apex:outputPanel>

This will show contactId field when accountd has some value.

December 5, 2019
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Dushyant Sonwar
Change
<apex:inputField value="{!CallReportHosp__c.AccountID__c}" id="organisation" >
to
<apex:inputField value="{!rep.AccountID__c}" id="organisation" >

and
add this line
rep = new CallReportHosp__c();
public CtrlCallHospEdit(ApexPages.StandardController controller) { this.booleanValue=false; rep = new CallReportHosp__c(); rep = (CallReportHosp__c)controller.getRecord(); System.debug(' bool= '+booleanValue); SelectService(); }

Hope this helps!

December 2, 2019
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Олег Савинков
Hello! I do it, but have error in page: Error: Unknown property 'CallReportHosp__cStandardController.rep'

December 2, 2019
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Олег Савинков
Help, please! I changed the code but still can't get the value of the field in the controller
Page:
<apex:page standardController="CallReportHosp__c" extensions="CtrlCallHospInsert" id="CallsHospEditt">
<script type="text/javascript">
function onChangeOrganisation() {
         booleanValue = true;
         openPopup("/apex/TM_AccountsList?context=parents", "lookup", 900, 600, "width=900,height=600,toolbar=no,status=no,directories=no,menubar=no,resizable=yes,scrollable=no", true);
        }
</script>
    <apex:form >

        <apex:pageBlock mode="edit" id="pblock" >
            <apex:pageMessages id="message" />
            <apex:pageBlockButtons location="top">
                <apex:actionStatus id="mySaveStatus1">
                <apex:facet name="stop">
                <apex:commandButton value="Save" action="{!save}" rerender="pblock" status="mySaveStatus1"/>
                </apex:facet>
                <apex:facet name="start">
                <apex:commandButton value="Save" status="mySaveStatus1" disabled="true"/>
                </apex:facet>
                </apex:actionStatus>
                <apex:commandButton value="Cancel" action="{!cancel}"/>
            </apex:pageBlockButtons>

            <apex:pageBlockSection columns="2">
                <apex:pageBlockSectionItem >
                    <apex:outputLabel value="Organisation" for="organisation"/>
                    <apex:inputfield value="{!rep.AccountID__c}" id="organisation" required="true">
                         <apex:actionSupport event="onchange" reRender="pblock" status="status" action="{!SelectService}" />
                    </apex:inputfield>
                </apex:pageBlockSectionItem>

                <apex:pageBlockSectionItem >

<apex:outputPanel rendered="{!booleanValue}" >
    <apex:outputLabel value="Contact" for="contacts"/>
    <apex:inputfield value="{!rep.ContactId__c}"   />
</apex:outputPanel>

                </apex:pageBlockSectionItem>


                <apex:pageBlockSectionItem >
                    <apex:outputLabel value="Date" for="datetime"/>
                    <apex:inputfield value="{!rep.Date__c}" id="theDate"/>
                </apex:pageBlockSectionItem>

                <apex:pageBlockSectionItem >
                    <apex:outputLabel value="Time" for="time"/>
                    <apex:inputfield value="{!rep.CallTime__c}" id="theTime"/>

                </apex:pageBlockSectionItem>


                <apex:pageBlockSectionItem >
                    <apex:outputLabel value="Type of visit" for="type"/>
                    <apex:inputfield value="{!rep.CallType__c}" id="type"/>
                    </apex:pageBlockSectionItem>

                <apex:pageBlockSectionItem >
                    <apex:outputLabel value="Duration" for="duration"/>
                    <apex:inputfield value="{!rep.Duration__c}" id="duration"/>
                </apex:pageBlockSectionItem>

              <apex:pageBlockSectionItem >
                    <apex:outputLabel value="Plan/fact" for="planned"/>
                    <apex:inputfield value="{!rep.Planned__c}" id="planned"/>
                </apex:pageBlockSectionItem>

                <apex:pageBlockSectionItem >
                    <apex:outputLabel value="Speciality" for="speciality"/>
                    <apex:inputfield value="{!rep.Speciality_Hosp__c}" id="planned"/>
                </apex:pageBlockSectionItem>

             </apex:pageBlockSection>


              <apex:pageBlockSection title="Discussed Products" columns="1" >
              <apex:pageBlockSectionItem >
                    <apex:outputLabel value="Discussed Products" for="products"/>
                    <apex:inputfield value="{!rep.Field1_del__c}" id="products"/>
                </apex:pageBlockSectionItem>
            </apex:pageBlockSection>

        </apex:pageBlock>


    </apex:form>

</apex:page>

Controller:
public class CtrlCallHospInsert {

public Boolean booleanValue {get;set;}
public CallReportHosp__c rep {get; set;}

private ApexPages.StandardController controller { get; set; }

    public CtrlCallHospInsert(ApexPages.StandardController controller) {
         this.controller = controller;
//         this.rep = new CallReportHosp__c();
         this.rep = (CallReportHosp__c)controller.getRecord();
         this.booleanValue=false;
         System.debug(' bool= '+booleanValue);
         SelectService();
    }

public void SelectService(){

system.debug('selectservice=');
this.rep = (CallReportHosp__c)controller.getRecord();
String Acc=rep.AccountID__c; System.debug('value= '+Acc);
        if (String.isBlank(Acc))
           {this.booleanValue=false; System.debug('acc= '+Acc);
           }
           else {this.booleanValue = true; System.debug('acc= '+Acc); }
    }

public PageReference save(){

        try {
            insert rep;
        }catch (Exception e){
            ApexPages.addmessage(new ApexPages.message(ApexPages.severity.ERROR, '"Something went wrong !"'));
        }
        PageReference pageRef = Page.CallsHospList;
        pageRef.setRedirect(true);
        return pageRef;
    }

public PageReference cancel() {
        PageReference pageRef = Page.CallsHospList;
        pageRef.setRedirect(true);
        return pageRef;
    }

}
I need to get the value of the field AccountID__c after some value is entered in it. I tried different code I found on the Internet, but nothing works.

December 4, 2019
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Dushyant Sonwar
remove below line from select service method as you already binding rep object.
this.rep = (CallReportHosp__c)controller.getRecord();

public void SelectService(){ system.debug('selectservice='); System.debug(rep.AccountID__c + ' this is my accountId'); String Acc=rep.AccountID__c; System.debug('value= '+Acc); if (String.isBlank(Acc)) {this.booleanValue=false; System.debug('acc= '+Acc); } else {this.booleanValue = true; System.debug('acc= '+Acc); } }

also rerender the pageblock message in case any error
<apex:actionSupport event="onchange" reRender="pblock,message" status="status" action="{!SelectService}" />
<apex:pagemessages id="message" />
it will show you the error and it will be make easy to debug.

Hope this helps!

December 4, 2019
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Олег Савинков
I corrected my code, but it still not work. I have Acc= null. And i haven't any errors.
I want that when entering any value in the field AccountID__c (but before writing to the database) the variable booleanValue changes so that another input field ContactId__c is displayed.

December 4, 2019
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This was selected as the best answer

Олег Савинков
It works! Thank you!!!!

December 5, 2019
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Dushyant Sonwar
Welcome ,Glad It helped you :)

December 5, 2019
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