Is there a way to get the datatype of a database table field? This would be almost like the inverse of a migration.
For example, if the migration of a users table column looks like
... $table->integer('age') ...
Is there a function that will return integer
if I specify table user
and column age
?
I'm not interested in a specific database implementation, (mysql_field_type()
). Like Laravel's migration, it needs to be database agnostic.
How to change data type of column in laravel 9 migration ? Step 1 : Install doctrine/dbal package. Step 2 : Generate migration file. Step 3 : Open generated migration file and update.
A foreign key is a field that is used to establish the relationship between two tables via the primary key (You can also use a non-primary field but not recommended). In this tutorial, I show how you can add a foreign key constraint while creating a table using migration in the Laravel 8 project.05-May-2022.
Laravel includes the ability to seed your database with data using seed classes. All seed classes are stored in the database/seeders directory. By default, a DatabaseSeeder class is defined for you. From this class, you may use the call method to run other seed classes, allowing you to control the seeding order.
Unsigned type can be used to permit only nonnegative numbers in a column or when you need a larger upper numeric range for the column. For example, if an INT column is UNSIGNED, the size of the column's range is the same but its endpoints shift from -2147483648 and 2147483647 up to 0 and 4294967295.
For Laravel 4:
After digging in Laravel, this is what I got.
DB::connection()->getDoctrineColumn('users', 'age')->getType()->getName()
use Illuminate\Database\Schema\Builder::getColumnType()
DB::getSchemaBuilder()->getColumnType($tableName, $colName)
e.g.
$ageType = DB::getSchemaBuilder()->getColumnType('user', 'age')
You may need to run this command if you haven't already:
composer require doctrine/dbal
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