Error in custom module Adminhtml Grid (setSaveParametersInSession() on boolean)

Question

I generated a module using this online tool: http://www.silksoftware.com/magento-module-creator/

I am now facing this error:

PHP Fatal error: Uncaught Error: Call to a member function setSaveParametersInSession() on boolean in app/code/core/Mage/Adminhtml/Block/Widget/Grid/Container.php:66

But I don't know how I could debug it. Website is running on Magento CC 1.9.3. Saw this setSaveParametersInSession() on a non-object and that Fatal error: Call to a member function setSaveParametersInSession() on a non-object in aBlock\Widget\Grid\Container.php on line 66 but don't see what I could change.

A dump in core's Container.php, on $this->_blockGroup.'/'.$this->_controller.'_grid' returns me this: 'destinataires/adminhtml_destinataireschauvinfrance_grid'

Which seems right. Am I wrong?

An extract of my config.xml :

<config>
 <modules>
 <Canalweb_Destinataires>
 <version>0.1.0</version>
 </Canalweb_Destinataires>
 </modules>
 <global>
 [...]
 <blocks>
 <destinataires>
 <class>Canalweb_Destinataires_Block</class>
 </destinataires>
 </blocks>
 <models>
 [...]
 <destinataires>
 <class>Canalweb_Destinataires_Model</class>
 <resourceModel>destinataires_mysql4</resourceModel>
 </destinataires>
 <destinataires_mysql4>
 <class>Canalweb_Destinataires_Model_Mysql4</class>
 <entities>
 <destinataireschauvinfrance>
 <table>destinataires_chauvin_france</table>
 </destinataireschauvinfrance> 
 <destinataireschauvinpays>
 <table>destinataires_chauvin_pays</table>
 </destinataireschauvinpays>
 [...]
 </entities>
 </destinataires_mysql4>
 </models>
 [...]
 <admin>
 <routers>
 <destinataires>
 <use>admin</use>
 <args>
 <module>Canalweb_Destinataires</module>
 <frontName>admin_destinataires</frontName>
 </args>
 </destinataires>
 </routers>
 </admin>
 <adminhtml>
 <menu>
 <destinataires module="destinataires">
 <title>Destinataires</title>
 <sort_order>100</sort_order>
 <children>
 <destinataireschauvinfrance module="destinataires">
 <title>Manage Destinataireschauvinfrance</title>
 <sort_order>0</sort_order>
 <action>admin_destinataires/adminhtml_destinataireschauvinfrance</action>
 </destinataireschauvinfrance>
 [...]

My Block/Adminhtml/Destinataireschauvinfrance.php :

<?php
class Canalweb_Destinataires_Block_Adminhtml_Destinataireschauvinfrance extends Mage_Adminhtml_Block_Widget_Grid_Container{
 public function __construct()
 {
 $this->_controller = "adminhtml_destinataireschauvinfrance";
 $this->_blockGroup = "destinataires";
 $this->_headerText = Mage::helper("destinataires")->__("Destinataireschauvinfrance Manager");
 $this->_addButtonLabel = Mage::helper("destinataires")->__("Add New Item");
 parent::__construct();
 }

Beginning of my Block/Adminhtml/Destinataireschauvinfrance/Grid.php :

<?php
class Canalweb_Destinataires_Block_Adminhtml_Destinataireschauvinfrance_Grid extends Mage_Adminhtml_Block_Widget_Grid
{
 public function __construct()
 {
 parent::__construct();
 $this->setId("destinataireschauvinfranceGrid");
 $this->setDefaultSort("id");
 $this->setDefaultDir("DESC");
 $this->setSaveParametersInSession(true);
 }

What am I not seeing?

Answer 1

You state in your config.xml that the admin front name of your module is "admin_destinataires" but then you use "destinataires" as the blockgroup.

Try replacing

$this->_blockGroup = "destinataires";

with

$this->_blockGroup = "admin_destinataires";

==Edit==

The 'Call to a member function setSaveParametersInSession() on boolean' error is caused when the grid container class/block cannot find the grid class/block. So my money is still at that the blockgroup you are using is wrong.

If the above does not solve your problem, try replacing all instances of admin_destinataires with destinataires.

• galenskap: Yes! Replacing all instances of admin_destinataires was the trick. Thank you very, very much!