/PHP/Laravel migration remove unique constraint

Laravel migration remove unique constraint

/** To drop an index you must specify the index's name. 
Laravel assigns a reasonable name to the indexes by default. 
Simply concatenate the table name, the names of the column in the index, 
and the index type **/

// Format of unique key tableName_column_unique
$table->dropUnique('users_email_unique');

Laravel migration remove unique

//The UNique need be a constraint name
// This name has this format:
// [TABLE_NAME]_[COLUMN_NAME]_unique
// For 'users' table and 'user_code' column, whe get the name:
// users_user_code_unique
$table->dropUnique('users_user_code_unique');

//The inverst is 
$table->unique('user_code');

Similar codes

18 votes351 views5 answers
If else statement in laravel blade
PHP Laravel
0 vote312 views1 answer
Hash not found laravel
PHP
3 votes331 views2 answers
Array push foreach php
PHP
0 vote289 views2 answers
Php undefined offset
PHP
0 vote301 views1 answer
Pass address of array in php
PHP
0 vote309 views1 answer
The plugin generated 14 characters of unexpected output during activation. if you notice “headers already sent” messages, problems with syndication feeds or other issues, try deactivating or removing this plugin
PHP
0 vote301 views2 answers
Laravel insert with id
PHP
0 vote298 views4 answers
Composer create project version
PHP
0 vote340 views1 answer
Invalid_taxonomy
PHP
1 vote352 views1 answer
How to alias table name in laravel model
PHP Laravel