Forum Discussion

Han's avatar
Han
Ace
8 years ago
Solved

Add a separator if freemarker loop has more than one item

I am new to logic in freemarker and  having trouble adding a separator in a loop if there is more than one item. My current code below is adding a separator, but it appears after my items; <...
  • VikasB's avatar
    VikasB
    8 years ago

    Han

    It would resolve you problem

    ${userType?keep_before_last("|")}

    I may create an issue if a user does not have any role but I think every user will have at least one role.  Right?

    Here is an updated version.  Here is the output https://prnt.sc/jsccwr

     <#assign userTypeCount = 0>
<#assign userType = ""/>
  <#list restadmin("/users/id/${user.id}/roles").roles.role as role>
    <#assign userType += role.name >
    <#assign userTypeCount ++>
 
    <#-- only add separator if user has more than one role -->
      <#assign userType += ' | '>
  </#list>
${userType}
${userType?keep_before_last("|")}
VikasB's avatar
VikasB
Boss
8 years ago

Can you share the error screenshot. Also, try it with simple assignment instead += 

<#assign userType = userType + ' | '>

 

Han's avatar
Han
Ace
8 years ago

VikasB I am not getting any errors. If I remove the += then I overwrite my variable with a pipe, which is not my intended out come. 

I would like to have the user roles displayed with a | separator if it's needed. 

  • VikasB's avatar
    VikasB
    Boss
    8 years ago

    Han

    You need to initialize the "userType" initially. Like this  

    <#assign userType = ""/>

    Here is the corrected version. 

    Note: It would add pipe after every role except in between of first and second role. 

     <#assign userTypeCount = 0>
<#assign userType = ""/>
  <#list restadmin("/users/id/${user.id}/roles").roles.role as role>
    <#assign userType += role.name >
    <#assign userTypeCount ++>
 
    <#-- only add separator if user has more than one role -->
    <#if (userTypeCount >1)>
      <#assign userType += ' | '>
     
    </#if>
  </#list>
${userType}

     You need to remove the <#if> condition If you want to add a pipe after the first role also. 

    • Han's avatar
      Han
      Ace
      8 years ago

      VikasB thanks for the reply.  I am defining the var already. I just left that piece of code out of my snippet above. 

      Currently what I am getting displayed for user with one role is: 
      "Contributor |" 

      If  they have two or more roles I get :
      "Administrator | Contributor |"

       

      My desired output for one role is 
      "Contributor"

      and for two would be:
      "Administrator | Contributor "


      I've played around with a few variations of my condition, with similar results. I can't quite figure out what is going on as this is fairly simple logic. 

      • VikasB's avatar
        VikasB
        Boss
        8 years ago

        Han

        It would resolve you problem

        ${userType?keep_before_last("|")}

        I may create an issue if a user does not have any role but I think every user will have at least one role.  Right?

        Here is an updated version.  Here is the output https://prnt.sc/jsccwr

         <#assign userTypeCount = 0>
<#assign userType = ""/>
  <#list restadmin("/users/id/${user.id}/roles").roles.role as role>
    <#assign userType += role.name >
    <#assign userTypeCount ++>
 
    <#-- only add separator if user has more than one role -->
      <#assign userType += ' | '>
  </#list>
${userType}
${userType?keep_before_last("|")}