在generateUniqueKey方法中,你可以实现任何你想要的自定义逻辑来生成唯一的主键值。 以上是在 Laravel 5.3 中获取唯一主键的几种方法。根据你的需求和场景,选择适合的方法来获取唯一的主键值。 相关搜索: 如何在插入具有重复唯一键的记录时获取主键 在Laravel中获取唯一的年份值 ...
$table->string('email')->unique(); 或者,您可以独立一行来加入索引,以下是支持的索引类型:命令功能描述 $table->primary('id'); 加入主键 (primary key) $table->primary(array('first', 'last')); 加入复合键 (composite keys) $table->unique('email'); 加入唯一索引 (unique index) $table->...
Eloquent requires each model to have at least one uniquely identifying "ID" that can serve as its primary key. "Composite" primary keys are not supported by Eloquent models. However, you are free to add additional multi-column, unique indexes to your database tables in addition to the table...
$table->primary('id'); Adds a primary key. $table->primary(['id', 'parent_id']); Adds composite keys. $table->unique('email'); Adds a unique index. $table->index('state'); Adds an index. $table->fulltext('body'); Adds a fulltext index (MySQL/PostgreSQL). ...
To do so, you should call the unique method on the schema builder blueprint. This method accepts the name of the column that should receive a unique index:1$table->unique('email');You may even pass an array of columns to an index method to create a compound (or composite) index:1$...
Eloquent requires each model to have at least one uniquely identifying "ID" that can serve as its primary key. "Composite" primary keys are not supported by Eloquent models. However, you are free to add additional multi-column, unique indexes to your database tables in addition to the table...
Unique: @unique Use the field as unique. Appropriate validation rules will be created. model Example { email String @unique } Ignore: @ignore If you need to ignore some attributes in the generated model, use this annotation. model Example { id Int @id @default(autoincrement()) interal Stri...
在 MySQL 中如果创建了符合索引，例如创建复合索引（name，salary，dept），就相当于创建了（name，salary...
Impressive Extensibility– Bundles can be reused by developers with Symfony, and it’s not necessary to adjust the framework as only the bundle may be configured to suit the needs of your unique project. Simple Development– With Symfony, there is no need for developers to stress over minor fu...
Unique With Validator - Provides support for composite unique indexes, such as combination of first and last name. QueryBuilderParser - A Laravel package that builds SQL queries based on input from a jQuery QueryBuilder. Design Pattern Tools Laravel Context - Provides application contextual support ...