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schema builder laravel migrations unique on two columns. possible duplicate of laravel 4 making a combination of values columns unique a organic advocate feb 28 17 at 19 11 this level of detail is sadly missing from the laravel docs a.

laravel eloquent how to create unique constraint with. laravel eloquent how to create unique constraint with duplicate nulls ask question asked 4 years this migration example is for laravel 5 and creates a users table with a unique add non null unique constraint not index 1. database migrations laravel the php framework for web. the laravel schema facade provides database agnostic support for creating and manipulating tables across all of laravel s supported database systems generating migrations to create a migration use the make migration artisan command php artisan make migration create users table the new migration will be placed in your database migrations. database migrations laravel the php framework for web. before renaming a table you should verify that any foreign key constraints on the table have an explicit name in your migration files instead of letting laravel assign a convention based name otherwise the foreign key constraint name will refer to the old table name creating columns. creating foreign key in laravel migrations example. 8 5 2014 creating foreign key in laravel migrations today i was trying out laravel s migration i tried to create two tables with the second table having a foreign key that reference the first table alter table cs product prices add constraint product prices product id foreign foreign key product id references cs products id. migration problem cannot add foreign key constraint in. migration problem cannot add foreign key constraint in laravel posted 7 months ago by mdelshad i m install a package and i want to make changes to the package migration.

github felixkiss uniquewith validator custom laravel. 6 9 2019 unique with validator rule for laravel this package contains a variant of the validateunique rule for laravel that allows for validation of multi column unique indexes documentation for older versions laravel 4 installation install the package through composer on the command line composer require felixkiss uniquewith validator configuration. laravel how to remove foreign key constraint using. sometimes it can be agreeable to remove a database column that hosts a foreign key relationship and we add wrong column with foreign key constraint on table at that time we must remove that column from table but we can t remove directly using dropcolumn because we did apply foreign key. sqlstate hy000 general error 1215 cannot add foreign. 28 2 2019 for example if you have a salmons and a goats table and you trying to add a foreign key from the transactions table to the id column in those tables the migrations for salmons and goats must run first otherwise you are trying to add foreign keys to tables that don t exist which makes laravel mad.

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