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Laravel Eloquent Add Custom Column | Guide

Did you know that Laravel Eloquent queries let us include custom columns in our query results?

Whether we need to cast attributes, create custom getters, or directly manipulate the query, Laravel has our back.

Let’s take a look at these techniques and see how we can use them to build more expressive and efficient queries.

Laravel’s attribute casting feature lets us define how attributes on our Eloquent models should be transformed. This is useful for converting attributes into common data types like integers, dates, or booleans. Moreover, we can define custom cast types to format attributes according to our specific needs.


class User extends Authenticatable
{
/**
* Return the full_name by concatenating
* the first_name and last_name
*
* @return String
*/
public function getFullNameAttribute() {
return sprintf('%s %s', $this->first_name, $this->last_name);
}
}


Accessor methods help us define custom getters for attributes on our Eloquent model. This lets us retrieve a custom value for a specific attribute.

// Usage
User::first()->full_name;


How to add a custom column in Select with Eloquent Query Buider

For more control over adding custom columns, we can use the `select()` method.

This lets us select specific columns and add custom expressions to our query.

For example:

• Solution 1: Using `DB::raw`
  DB::table('modules')->get(['url', DB::raw('1 as active')]);
• Solution 2: Using `selectSub`
  $modules = DB::table('modules')->select('url')
->selectSub(function ($query) {
$query->selectRaw('1');
}, 'active')
->get();

• Solution 3: Indicating a particular column
  $users = DB::table('modules')->select('1 as active')→get(['url']);


These methods offer flexibility and let us create queries as per our needs.

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Conclusion

In brief, our Support Expertsdemonstrtaetd to add a custom column in Select with Eloquent Query Buider.