Magento -- System Configuration

Tomorrow's New Year. Haha!

 

1

 

How to obtain configuration data

Mage: getstoreconfig ('duan ', store_id), for example:

Mage: getstoreconfig ('helloworld _ options/message/hello_message ', 1 );

You can get the configuration in the sysytem. xml file, and then set the value in system-config in the background.

2

How to configure data.

2.1

First, specify helpers in config. XML, for example:

<Global>

<Helpers>

<Helloworld>

<Class> zh_helloworld_helper </class>

</Hellowordl>

</Helpers>

</Global>

2.1.1

The helpers class must be configured in the configuration.

Use helper

----------------------->

Mage: helper ('helloworld/foo ');

For the helpers class zh_helloworld_helper_foo used

For zh_helloworld_helper_data, you can directly get the data help class through Mage: helper ('helloworld;

 

 

2.1.2 help class instance:

APP/code/local/zh/helloworld/helper/data. php

Class zh_helloworld_helper_data extends mage_core_helper_abstract

{

}

 

3

Add a new section ):

In the ETC/system. xml file:

<Config>

<Tabs>

<Helloconfig translate = "label" module = "helloworld">

<Label> Hello config </label>

<Sort_order> 222 </sort_order>

</Helloconfig>

</Tabs>

 

<Sections>

<Helloworld_options translate = "label" module = "helloworld">

<Label> Hello World </Labe>

<Tab> helloconfig </TAB>

<Frontend_type> text </frontend_type>

<Sort_order> 1000 </sort_order>

<Show_in_default> 1 </show_in_default>

<Show_in_website> 1 </show_in_website>

<Show_in_store> 1 </show_in_store>

</Helloworld_options>

</Sections>

 

</Config>

4

Add ACL permissions:

ETC/config. xml

<Config>

<Adminhtml>

<ACL>

<Resources>

<Admin>

<Children>

<System>

<Children>

<Config>

<Children>

<Helloworld_options>

<Title> Store Hello World module section </title>

</Helloworld_options>

</Children>

</Config>

</Children>

</System>

</Children>

</Admin>

</Resources>

</ACL>

</Adminhtml>

</Config>

 

Analyze this code. All codes are defined as follows:

<Adminhtml>

<ACL>

<Resources>

</Resources>

</ACL>

</Adminhtml>

 

5

Add group:

In magento, options are divided by groups. Therefore, you must add a group before adding options and modify the system. xml file.

 

 <sections>        
 
6
Add configuration options:
 
<Messages translate = "label"> <label> demo of config fields </label> <frontend_type> text </frontend_type> <sort_order> 1 </sort_order> <show_in_default> 1 </show_in_default> <show_in_website> 1 </show_in_website> <show_in_store> 1 </show_in_store> <fields>     <label>Message</label>    <frontend_type>select</frontend_type>    < !– adding a source model –>    <source_model>helloworld/words</source_model>                               <sort_order>1</sort_order>    <show_in_default>1</show_in_default>    <show_in_website>1</show_in_website>    <show_in_store>1</show_in_store>                    
</Fields>
</Messages>
6.1
app/code/local/Zhlmmc/Helloworld/Model/Words.phpclass Zhlmmc_Helloworld_Model_Words{    public function toOptionArray()    {        return array(            array('value'=>1, 'label'=>Mage::helper('helloworld')->__('Hello')),            array('value'=>2, 'label'=>Mage::helper('helloworld')->__('Goodbye')),            array('value'=>3, 'label'=>Mage::helper('helloworld')->__('Yes')),            array('value'=>4, 'label'=>Mage::helper('helloworld')->__('No')),        );    }}
 
The source model provides the "tooptionsarray" method. The returned data is used to fill in the configuration options we previously defined. This method will be called by "initfields" at runtime. "Initfields" is defined in the following classes
app/code/core/Mage/Adminhtml/Block/System/Config/Form.php
7
How to obtain configuration data
So far, we have only talked about how to set magento so that users can configure our modules. Now let's take a look at how to get the user's configuration data.
Mage::getStoreConfig('helloworld_options/messages/hello_message');
The above line of code can obtain the data of the "select" option we configured above. The parameter of this function is the URI of the data to be obtained. The format is as follows:
section_name/group_name/field_name
You can also use the following code to obtain all values of a group or segment:
Mage::getStoreConfig('helloworld_options/messages');Mage::getStoreConfig('helloworld_options');
Finally, if you want to obtain data for a specific store, you can pass in the store ID
Mage::getStoreConfig('helloworld_options',1);