How to get value from core_config_data table and set as default value in config.xml file in magento2

Question

I want to add value from

BLOG > General > Store Information > Store name and set value in General > General > Store Information > Store name

which i added.

How it is possible? Please help me...

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Config:etc/system_file.xsd">
 <system>
 <tab id="abc" translate="label" sortOrder="10">
 <label>abc</label>
 </tab>
 <section id="general_tab" translate="label" sortOrder="130" showInDefault="1" showInWebsite="1" showInStore="1">
 <class>separator-top</class>
 <label>General</label>
 <tab>abc</tab>
 <resource>abc_Blog::config_blog</resource>
 <group id="general" translate="label" type="text" sortOrder="10" showInDefault="1" showInWebsite="0" showInStore="0">
 <label>Store Information</label>
 <!-- <field id="enable" translate="label" type="select" sortOrder="1" showInDefault="1" showInWebsite="0" showInStore="0">
 <label>Module Enable</label>
 <source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
 </field> -->
 <field id="display_text" translate="label" type="text" sortOrder="1" showInDefault="1" showInWebsite="0" showInStore="0">
 <label>Store name</label>
 <!-- <comment>This text will display on the frontend.</comment> -->
 </field>
 <field id="display_text2" translate="label" type="text" sortOrder="1" showInDefault="1" showInWebsite="0" showInStore="0">
 <label>Store name2</label>
 <!-- <comment>This text will display on the frontend.</comment> -->
 </field>
 </group>
 </section>
 </system>
</config>

enter image description here

• Amit Bera: Please share system.xml file of this modules
• Rohan Hapani: see this code... please help me.

Answer 1

You need include the Magento\Store\Model\ScopeInterface class consturctor

protected $_scopeConfig;
public function __construct(
 ...
 \Magento\Store\Model\ScopeInterface $scopeInterface,
 ...
)
{
 ...
 $this->_scopeConfig = $scopeInterface;
 ...
}

In Your specific place call:

$this->scopeConfig->getValue('general_tab/general/display_text', \Magento\Store\Model\ScopeInterface::SCOPE_STORE);

• Rohan Hapani: $this->scopeConfig->getValue('general_tab/general/display_text', \Magento\Store\Model\ScopeInterface::SCOPE_STORE); .............. this value i want to stored in "general/store_information/name" using saveConfig() .... how it is possible?
• Rohan Hapani: its solved : => put this below code in observer => execute() function $showTemplateHint = $this->_scopeConfig->getValue('general_tab/general/display_text', \Magento\Store\Model\ScopeInterface::SCOPE_STORE); .................................. $this->resourceConfig->saveConfig('general/store_information/name', $showTemplateHint, 'default', 0)
• Rohan Hapani: How can i set use this tab in other store view & store value in 'core_config_data' table ?