How do i get enable /disable value from Magento admin?

Question

I have created a module, where admin can enable/disable and also select any value from select options.

Now I want this data to check that values, and according to that I want to give some conditions to display menu on header. (If admin enables this, the menu will be displayed in frontend).

How do i achieve this?

Please let me know any way to do this.

Answer 1

Put below code in your system file

    <?xml version="1.0"?>
    <config>
<tabs>
    <tab_name translate="label" module="Module_name">
        <label>Main tab name</label>
        <sort_order>500</sort_order>
    </tab_name>
</tabs>
<sections>
    <tab_name translate="label" module="Module_name">
        <label>Sub tab name</label>
        <tab>tab_name</tab>
        <frontend_type>text</frontend_type>
        <sort_order>110</sort_order>
        <show_in_default>1</show_in_default>
        <show_in_website>1</show_in_website>
        <show_in_store>1</show_in_store>
        <groups>
            <general translate="label">
                <label>General</label>
                <frontend_type>text</frontend_type>
                <sort_order>10</sort_order>
                <show_in_default>1</show_in_default>
                <show_in_website>1</show_in_website>
                <show_in_store>1</show_in_store>
                <fields>
                    <enabled translate="label">
                        <label>Enabled:</label>
                        <frontend_type>select</frontend_type>
                        <source_model>adminhtml/system_config_source_yesno</source_model>
                        <sort_order>10</sort_order>
                        <show_in_default>1</show_in_default>
                        <show_in_website>1</show_in_website>
                        <show_in_store>1</show_in_store>
                    </enabled>
                </fields>
            </general>
        </groups>
    </tab_name>
</sections>

After that check Enable/Disable in your phtml file

    <?php 
$config = Mage::getStoreConfig('tab_name/general/enabled');
if($config){
echo "Enable from admin";
}else{
echo "Disable from admin";
}

Answer 2

PHP/phtml files

You can use this to check your enabled/disabled settings:

Mage::getStoreConfigFlag('path/to/enable_disable') // returns true or false

For all other config values you can use:

Mage::getStoreConfig('path/to/configfield') // returns config value

Layout files

In layout.xml files you can check boolean config values like this:

<reference name="head">
    <action method="append" ifconfig="path/to/enable_disable">
        <block>my_block</block>
    </action>
</reference>

If you want to use show something based on you config string values, you may need an helper method:

<reference name="head">
    <action method="append">
        <block_id helper="yourmodule/yourhelper/checkConfig"/>
    </action>
</reference>

Your_Module_Helper_Data.php

public function checkConfig()
{
    $config = Mage::getStoreConfig('path/to/configfield');
    // your logic here
}

Answer 3

First of all call the value of enable disable fields from system.xml

$show = Mage::getStoreConfig('tab/general/enable_disable');

Then put your menu in if condition to display the header menu as below:

if($show == 1){
   echo 'Show Menu';
}else{
   echo 'Hide Menu';
}