Display Confirm Message before a Custom Object Action with Admin Generator in Symfony

        object_actions:
          _edit: ~
          send: { params: { onclick : "if(confirm('Are you sure?')){return true;}else{return false;}" } }

Correct the Icon Position of sfAdminThemejRollerPlugin Buttons in IE, Chrome, Safari

Use this code in the layout after the CSS definitions....

Sort By Foreign Key or Custom Column in Symfony Admin Generator

This solution is works with Doctrine ORM.

1. Put this to the backend module's actions.class.php

   protected function addSortQuery($query)
     {
       $rootAlias = $query->getRootAlias();
       if (array(null, null) == ($sort = $this->getSort()))
       {
         return;
       }
       $s = $sort[0];
       $fields = $this->varHolder->get('configuration')->getFieldsDefault();
       if ($fields != null)
       {
         $field = $fields[$s];
         if ($field != null)
         {
           if (isset($field['sortBy']))
           {
             $criterion = $field['sortBy'];
             if ($criterion != null)
             {
               $s = $criterion;
             }
           }
         }
       }
       
       if (isset($field['noRootAlias']) && $field['noRootAlias'] == true)
       {
         $query->addOrderBy($s . ' ' . $sort[1]);
       }
       else
       {
         $query->addOrderBy($rootAlias.'.'.$s . ' ' . $sort[1]);
       }
     }
   

2. Let's see first the foreign key sorting with an example. If you want to show the related object's name instead of its id, you must use the relation name (in this case 'Group'). To enable sorting, add the sortBy parameter to the field.
   

   config:
         ...
         fields:
           name:    { label: Name }
           Group:   { label: Group, sortBy: Group.name }  
         list:
           title:   Users
           display: [id, name, Group]
   

   That's all, the sorting now works, but the column's name is not clickable yet. You have to change the generator's template. As I use the sfAdminThemejRollerPlugin, I will do this with that.
3. Open the \ plugins \ sfAdminThemejRollerPlugin \ data \ generator \ sfDoctrineModule \ jroller \ template \ templates \ _list_th_tabular.php file and change the 4th row from this:

   <?php if ($field->isReal()): ?>

   to this:

   <?php if ($field->isReal() || $field->getConfig('sortBy')): ?>

   Now the foreign key sorting must work.
4. Let's see the custom column sorting with an example. The data you will want to see in the custom column is somewhere in the database. You have to add your custom column to the original sql statement. Use joins, relations or simply subqueries. You can overwrite the sql in backend module's actions.class.php:
   

   protected function buildQuery()
     {
        $query = parent::buildQuery();
        // do what ever you like with the query    
        // use the die($query->getSqlQuery()); row to see the original sql statement
        return $query->addSelect('*, (SELECT foo FROM bar) as foobarcolumn');
     }

   As you can see I didn't change the query output, I only add an extra column to the query.
5. Now we have to add this column to the generator.yml...
   

   config:
         ...
         fields:
           name:    { label: Name }
           Group:   { label: Group, sortBy: Group.name }
           foobar:  { label: FooBar, sortBy: foobarcolumn, noRootAlias: true }
         list:
           title:   Users
           display: [id, name, Group, foobar]
   

I hope this helps. The noRootAlias param is created by me, perhaps you won't need it or you can avoid using it. If you have an easier/better solution, please tell me!

generator.yml: Related Object's Fields in the DISPLAY List

If you want to show only the name (default field) of a related object, you can use the name of the object:

[id, name, Category]

This case Category will return with $this->getCategory()->getName() where $this is the current object. For other fields, create simple functions on the model class. Ex.:

// lib/model/doctrine/Article.class.php
public function getCategoryDescription()
{
  return $this->getCategory()->getDescription();
}

Now put this to the display list:

[id, name, category_description]