Magento create a custom module

Question

I would like to create a custom module. I have taken the following setps my code are below.

app\code\local\Amzad\OrderComment\etc\config.xml

<models>
  <ordercomment>
    <class>Amzad_OrderComment_Model</class>
  </ordercomment>
    <ordercomment_resource>
        <class>Amzad_OrderComment_Model_Resource</class>
        <entities>
            <config>
                <table>ordercomment_config</table>
            </config>
        </entities>
    </ordercomment_resource>
</models>

app\code\local\Amzad\OrderComment\Model\Resource\Config\Collection.php

   class Amzad_OrderComment_Model_Resource_Config_Collection extends Mage_Core_Model_Resource_Db_Collection_Abstract {
        protected function _construct()
        {
            $this->_init('ordercomment/config');
        }
    }

app\code\local\Amzad\OrderComment\Model\Resource\Config.php

    class Amzad_OrderComment_Model_Resource_Config extends Mage_Core_Model_Resource_Db_Abstract
    {
        protected function _construct()
        {
            $this->_init('ordercomment/config', 'id');
        }
    }

app\code\local\Amzad\OrderComment\Model\Config.php

    class Amzad_OrderComment_Model_Config extends Mage_Core_Model_Abstract
    {

        protected function _construct()
        {
            $this->_init('ordercomment/config');
        }
    }

Following 2 lines does not give me any output.

  $collection = Mage::getModel('ordercomment/config')->getCollection();
  echo "\n" . (string)$collection->getSelect()->limit(1);

php_error.log

 PHP Fatal error:  Call to a member function getSelect() on a non-object in

Could someone help me resolve this issue.

Can you share your source code via git? – zhartaunik Aug 04 '15 at 09:03 — zhartaunik, Aug 04 '15 at 09:03

score 4 · Accepted Answer · edited Aug 04 '15 at 10:31

4

I think you're missing a <resourceModel>ordercomment_resource</resourceModel> node in config/global/models/ordercomment node.

/Edit: Something like:

<config>
...
  <global>
    ...
    <models>
      <ordercomment>
        <class>Amzad_OrderComment_Model</class>
        <resourceModel>ordercomment_resource</resourceModel>
      </ordercomment>
      <ordercomment_resource>
        <class>Amzad_OrderComment_Model_Resource</class>
        <entities>
            <config>
                <table>ordercomment_config</table>
            </config>
        </entities>
      </ordercomment_resource>
...
    </models>
...
  </global>
...
</config>

edited Aug 04 '15 at 10:31

m82amjad

313
4
10

answered Aug 04 '15 at 09:30

Adi

1,216
6
14

Thanks for your suggestion ... I have added tprg_ordercomment_resource and ordercomment_resource remain unlucky – m82amjad Aug 04 '15 at 10:08
There's only one resource model per model, so you can't add both. Did you clear the cache? – Adi Aug 04 '15 at 10:15
ordercomment_resource worked but there was few error found in php_error.log – m82amjad Aug 04 '15 at 10:18
You can open a new question for the other errors, since this one is fixed. – Adi Aug 04 '15 at 10:23
Resolve the error.. Posted an answer below with working code. Thanks a lot. you are a star !! – m82amjad Aug 04 '15 at 10:25

Fabian Blechschmidt · Answer 2 · 2015-08-04T11:19:16.477

1

Is this your complete config?

Change it to:

<config>
    <global>
        <models>
          <ordercomment>
            <class>Tprg_OrderComment_Model</class>
          </ordercomment>
            <ordercomment_resource>
                <class>Tprg_OrderComment_Model_Resource</class>
                <entities>
                    <config>
                        <table>ordercomment_config</table>
                    </config>
                </entities>
            </ordercomment_resource>
        </models>    
    </global>
</config>

And I assume you have the module xml file in app/etc/modules.

edited Aug 04 '15 at 11:19

answered Aug 04 '15 at 08:50

Fabian Blechschmidt

35,388
8
75
182

It is a working module. Just adding a custom module. – m82amjad Aug 04 '15 at 08:51
And it is under global section. – m82amjad Aug 04 '15 at 08:52
you are talking about custom model, not module, correct me if I'm wrong. Beside this your code looks good. Did you clean the cache? – Fabian Blechschmidt Aug 04 '15 at 09:05
custom model in a working module !! :) – m82amjad Aug 04 '15 at 10:02
@m82amjad make the comment about the model, don't edit posts for this purpose. – SR_Magento Aug 04 '15 at 10:50

m82amjad · Answer 3 · 2015-08-04T10:54:03.510

Its working now !! Thanks you everybody !!!

app\code\local\Amzad\OrderComment\etc\config.xml

<models>
  <ordercomment>
      <class>Amzad_OrderComment_Model</class>
      <resourceModel>ordercomment_resource</resourceModel>
  </ordercomment>
    <ordercomment_resource>
        <class>Amzad_OrderComment_Model_Resource</class>
        <entities>
            <config>
                <table>ordercomment_config</table>
            </config>
        </entities>
    </ordercomment_resource>
</models>

app\code\local\Amzad\OrderComment\Model\Config.php

    class Amzad_OrderComment_Model_Config extends Mage_Core_Model_Abstract
    {

        protected function _construct()
        {
            $this->_init('ordercomment/config');
        }
    }

app\code\local\Amzad\OrderComment\Model\Resource\Config.php

    class Amzad_OrderComment_Model_Resource_Config extends Mage_Core_Model_Resource_Db_Abstract
    {
        protected function _construct()
        {
            $this->_init('ordercomment/config', 'id');
        }
    }

app\code\local\Amzad\OrderComment\Model\Resource\Config\Collection.php

 class Amzad_OrderComment_Model_Resource_Config_Collection extends Mage_Core_Model_Resource_Db_Collection_Abstract {
    protected function _construct()
    {
        $this->_init('ordercomment/config');
    }
}


    $collection = Mage::getModel('ordercomment/config')->getCollection();
    echo "\n" . (string)$collection->getSelect()->limit(1);

Here is some sample if you would like to retrieve and save data .

     Mage::getModel('ordercomment/config')->getCollection()
    ->getFirstItem()->getLastExportId();
    Mage::getModel('ordercomment/config')->load(1)->getLastExportId();
    $model = Mage::getModel('ordercomment/config')->load(1)->addData(array('last_export_id'=>$maxId));
    $model->setId(1)->save();

Magento create a custom module

3 Answers3