Not able to call a variable from constructor





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I am using a visualforce email template which calls a visualforce component and that component calls the controller class.



I am sending an Id from the Email Template to the component and trying to set it to another variable in the controller. It does not print the id from the component when i try to set it in the constructor and print it in the component. It would be great if someone could tell me where am I wrong. I researched on this issue and most likely it looks like There is an execution order that is not met. please help me fix this poblem and print the Id.



Visualforce Template:



<messaging:emailTemplate subject="Account overview Document" recipientType="User" relatedToType="pse__Proj__c">
<messaging:plainTextEmailBody >
<c:Information_Document_component Project_Id="{!relatedTo.Id}"/>
</messaging:plainTextEmailBody>
</messaging:emailTemplate>


Visualforce Component:



<apex:component controller="Information_Document_Controller" access="global" >
<apex:attribute: required="required" name="Project_Id" type="String" description="Test" AssignTo="{!projectId}"/>
{!projectId} <!-- This prints the correct Id -->
{!test} <!-- This prints as "test result: null where as I want this to print the Id too-->
</apex:component>


Controller:



public class Information_Document_Controller {

public String test {get; set;}
public String projectId{get; set;}

public Information_Document_Controller(){
test = 'test result: '+projectId;

}

}


Please note that i have simplified the class just for this issue. Once i am able to get the Id in the constructor i will be using it in queries to return some fields from few of the related objects. Thank You in advance.










share|improve this question




























    up vote
    3
    down vote

    favorite












    I am using a visualforce email template which calls a visualforce component and that component calls the controller class.



    I am sending an Id from the Email Template to the component and trying to set it to another variable in the controller. It does not print the id from the component when i try to set it in the constructor and print it in the component. It would be great if someone could tell me where am I wrong. I researched on this issue and most likely it looks like There is an execution order that is not met. please help me fix this poblem and print the Id.



    Visualforce Template:



    <messaging:emailTemplate subject="Account overview Document" recipientType="User" relatedToType="pse__Proj__c">
    <messaging:plainTextEmailBody >
    <c:Information_Document_component Project_Id="{!relatedTo.Id}"/>
    </messaging:plainTextEmailBody>
    </messaging:emailTemplate>


    Visualforce Component:



    <apex:component controller="Information_Document_Controller" access="global" >
    <apex:attribute: required="required" name="Project_Id" type="String" description="Test" AssignTo="{!projectId}"/>
    {!projectId} <!-- This prints the correct Id -->
    {!test} <!-- This prints as "test result: null where as I want this to print the Id too-->
    </apex:component>


    Controller:



    public class Information_Document_Controller {

    public String test {get; set;}
    public String projectId{get; set;}

    public Information_Document_Controller(){
    test = 'test result: '+projectId;

    }

    }


    Please note that i have simplified the class just for this issue. Once i am able to get the Id in the constructor i will be using it in queries to return some fields from few of the related objects. Thank You in advance.










    share|improve this question
























      up vote
      3
      down vote

      favorite









      up vote
      3
      down vote

      favorite











      I am using a visualforce email template which calls a visualforce component and that component calls the controller class.



      I am sending an Id from the Email Template to the component and trying to set it to another variable in the controller. It does not print the id from the component when i try to set it in the constructor and print it in the component. It would be great if someone could tell me where am I wrong. I researched on this issue and most likely it looks like There is an execution order that is not met. please help me fix this poblem and print the Id.



      Visualforce Template:



      <messaging:emailTemplate subject="Account overview Document" recipientType="User" relatedToType="pse__Proj__c">
      <messaging:plainTextEmailBody >
      <c:Information_Document_component Project_Id="{!relatedTo.Id}"/>
      </messaging:plainTextEmailBody>
      </messaging:emailTemplate>


      Visualforce Component:



      <apex:component controller="Information_Document_Controller" access="global" >
      <apex:attribute: required="required" name="Project_Id" type="String" description="Test" AssignTo="{!projectId}"/>
      {!projectId} <!-- This prints the correct Id -->
      {!test} <!-- This prints as "test result: null where as I want this to print the Id too-->
      </apex:component>


      Controller:



      public class Information_Document_Controller {

      public String test {get; set;}
      public String projectId{get; set;}

      public Information_Document_Controller(){
      test = 'test result: '+projectId;

      }

      }


      Please note that i have simplified the class just for this issue. Once i am able to get the Id in the constructor i will be using it in queries to return some fields from few of the related objects. Thank You in advance.










      share|improve this question













      I am using a visualforce email template which calls a visualforce component and that component calls the controller class.



      I am sending an Id from the Email Template to the component and trying to set it to another variable in the controller. It does not print the id from the component when i try to set it in the constructor and print it in the component. It would be great if someone could tell me where am I wrong. I researched on this issue and most likely it looks like There is an execution order that is not met. please help me fix this poblem and print the Id.



      Visualforce Template:



      <messaging:emailTemplate subject="Account overview Document" recipientType="User" relatedToType="pse__Proj__c">
      <messaging:plainTextEmailBody >
      <c:Information_Document_component Project_Id="{!relatedTo.Id}"/>
      </messaging:plainTextEmailBody>
      </messaging:emailTemplate>


      Visualforce Component:



      <apex:component controller="Information_Document_Controller" access="global" >
      <apex:attribute: required="required" name="Project_Id" type="String" description="Test" AssignTo="{!projectId}"/>
      {!projectId} <!-- This prints the correct Id -->
      {!test} <!-- This prints as "test result: null where as I want this to print the Id too-->
      </apex:component>


      Controller:



      public class Information_Document_Controller {

      public String test {get; set;}
      public String projectId{get; set;}

      public Information_Document_Controller(){
      test = 'test result: '+projectId;

      }

      }


      Please note that i have simplified the class just for this issue. Once i am able to get the Id in the constructor i will be using it in queries to return some fields from few of the related objects. Thank You in advance.







      apex visualforce visualforce-component email-template






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      share|improve this question










      asked Nov 29 at 7:36









      Umair Ayaz

      161




      161






















          1 Answer
          1






          active

          oldest

          votes

















          up vote
          3
          down vote













          Sadly, that's just how VisualForce components work. They are constructed first, then the parameters are set.



          So, typically, you have to implement custom setter methods. Each one calls an initialisation method which you write to check when all of the parameters have been initialised, then so its actual work e.g.



          public String test {get; set;}

          public String projectId{get; set {
          projectId = value;
          initialise();
          }}

          private void initialise() {
          if(projectId != null) {
          test = 'test result: '+projectId;
          }
          }





          share|improve this answer





















          • Thanks Aiden. It worked!
            – Umair Ayaz
            Nov 29 at 10:41










          • Great! Could you accept the answer so that anyone else with the same problem can see that there is a working answer here?
            – Aidan
            Nov 29 at 10:45











          Your Answer








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          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes








          up vote
          3
          down vote













          Sadly, that's just how VisualForce components work. They are constructed first, then the parameters are set.



          So, typically, you have to implement custom setter methods. Each one calls an initialisation method which you write to check when all of the parameters have been initialised, then so its actual work e.g.



          public String test {get; set;}

          public String projectId{get; set {
          projectId = value;
          initialise();
          }}

          private void initialise() {
          if(projectId != null) {
          test = 'test result: '+projectId;
          }
          }





          share|improve this answer





















          • Thanks Aiden. It worked!
            – Umair Ayaz
            Nov 29 at 10:41










          • Great! Could you accept the answer so that anyone else with the same problem can see that there is a working answer here?
            – Aidan
            Nov 29 at 10:45















          up vote
          3
          down vote













          Sadly, that's just how VisualForce components work. They are constructed first, then the parameters are set.



          So, typically, you have to implement custom setter methods. Each one calls an initialisation method which you write to check when all of the parameters have been initialised, then so its actual work e.g.



          public String test {get; set;}

          public String projectId{get; set {
          projectId = value;
          initialise();
          }}

          private void initialise() {
          if(projectId != null) {
          test = 'test result: '+projectId;
          }
          }





          share|improve this answer





















          • Thanks Aiden. It worked!
            – Umair Ayaz
            Nov 29 at 10:41










          • Great! Could you accept the answer so that anyone else with the same problem can see that there is a working answer here?
            – Aidan
            Nov 29 at 10:45













          up vote
          3
          down vote










          up vote
          3
          down vote









          Sadly, that's just how VisualForce components work. They are constructed first, then the parameters are set.



          So, typically, you have to implement custom setter methods. Each one calls an initialisation method which you write to check when all of the parameters have been initialised, then so its actual work e.g.



          public String test {get; set;}

          public String projectId{get; set {
          projectId = value;
          initialise();
          }}

          private void initialise() {
          if(projectId != null) {
          test = 'test result: '+projectId;
          }
          }





          share|improve this answer












          Sadly, that's just how VisualForce components work. They are constructed first, then the parameters are set.



          So, typically, you have to implement custom setter methods. Each one calls an initialisation method which you write to check when all of the parameters have been initialised, then so its actual work e.g.



          public String test {get; set;}

          public String projectId{get; set {
          projectId = value;
          initialise();
          }}

          private void initialise() {
          if(projectId != null) {
          test = 'test result: '+projectId;
          }
          }






          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 29 at 9:20









          Aidan

          6,700941




          6,700941












          • Thanks Aiden. It worked!
            – Umair Ayaz
            Nov 29 at 10:41










          • Great! Could you accept the answer so that anyone else with the same problem can see that there is a working answer here?
            – Aidan
            Nov 29 at 10:45


















          • Thanks Aiden. It worked!
            – Umair Ayaz
            Nov 29 at 10:41










          • Great! Could you accept the answer so that anyone else with the same problem can see that there is a working answer here?
            – Aidan
            Nov 29 at 10:45
















          Thanks Aiden. It worked!
          – Umair Ayaz
          Nov 29 at 10:41




          Thanks Aiden. It worked!
          – Umair Ayaz
          Nov 29 at 10:41












          Great! Could you accept the answer so that anyone else with the same problem can see that there is a working answer here?
          – Aidan
          Nov 29 at 10:45




          Great! Could you accept the answer so that anyone else with the same problem can see that there is a working answer here?
          – Aidan
          Nov 29 at 10:45


















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