Thechangemethod allows you to modify an existing column to a new type, or modify the column's attributes. For example, you may wish to increase the size of a string column. To see thechangemethod in action, let's increase the size of thenamecolumn from 25 to 50: change 方法允许你改变...
Schema::table('articles',function(Blueprint$table) {$table->dropColumn('description'); }); } 修改字段: publicfunctionup() { Schema::table('articles',function(Blueprint$table) {$table->string('description', 200)->change(); }); }publicfunctiondown() { Schema::table('articles',function(...
First, create a Validator instance with your static rules that never change:1$v = Validator::make($data, [ 2 'email' => 'required|email', 3 'games' => 'required|numeric', 4]);Let's assume our web application is for game collectors. If a game collector registers with our ...
Some database systems, such as PostgreSQL, have a dedicated column type for this type of data. Other database systems will use a string equivalent column:1$table->macAddress('device');mediumIncrements()The mediumIncrements method creates an auto-incrementing UNSIGNED MEDIUMINT equivalent column as...
Laravel-authz is an authorization library for the laravel framework. It's based onCasbin, an authorization library that supports access control models like ACL, RBAC, ABAC. All you need to learn to useCasbinfirst. Installation Using Gates ...
不建议更新包中的表。因此，在app文件夹中创建一个特征：
$(".parent_id").trigger('change'); SCRIPT ); //模型表格过滤器组查询时选项值总是为0处理 //在使用过滤器组后面接收过滤器组索引值 使用js设置 $filter->group('begin_time', '开始时间', function (Grid\Filter\Group $group) { $group->equal('等于'); ...
{"expected_update_period_in_days":"2","url":"http://www.woshipm.com/","type":"html","mode":"on_change","extract": {"title": {"xpath":"//div[@class=\"postlist-item u-clearfix\"]/div[2]/h2/a/text()","value":"normalize-space(.)"},"desc": {"xpath":"//div[@class=...
Modify config/laravels.php: worker_num=1, max_request=1000000, remember to change it back after test; Add routing /debug-memory-leak without route middleware to observe the memory changes of the Worker process; Route::get('/debug-memory-leak', function () { global $previous; $current = ...
By default the export will use the keys of your array (or model attribute names) as first row (header column). To change this behaviour you can edit the default config setting (excel::export.generate_heading_by_indices) or passfalseas 5th parameter: ...