Create new column $table->datatype('column_name')->nullable(); }); } public function down() { Schema::table('users', function (Blueprint $table) { // 1. Create new column $table->dropColumn('column_name'); }); } then run php artisan migrate if you face error then rename t...
} Therefore, when i eager-load the 'categories' i also eager-load each the threads associated with each category. But i want also to add a new column on the category model, with the some of the replies_count, the same as withCount. For example groups => ["id "=>1,"title"=>"some...
是的,可以在其他列上呈现视图。但要实现这一点,您必须将该列设置为原始列,如下所示:
addColumn是一个用于在关系表中添加新列的操作。在Laravel框架中,backpack是一个功能强大的扩展包,用于快速构建管理界面。addColumn是backpack提供的一个方法,用于向关系表中添加新的列。 使用addColumn方法可以通过以下步骤来添加新列: 在Laravel项目中安装并配置backpack扩展包。 打开与关系表对应的数据库迁移文件,通常...
是的,可以在其他列上呈现视图。但要实现这一点,您必须将该列设置为原始列,如下所示:
Arjay Angeles, also known as yajra, is an open source software advocate and a Laravel enthusiast. He is the author of many open source projects and a contributor to the Laravel community.
在Laravel中添加自定义属性来建模可以通过使用访问器和修改器来实现。访问器用于获取模型属性的值,而修改器用于设置模型属性的值。 首先,在你的模型类中定义一个访问器和修改器。访问器的命名规则是"g...
Laravel Version: 8.12 PHP Version: 8.0.28 Laravel-admin: 1.8.16 Description: I am trying to add a new column filter. To achieve this, I need to place a new method similar to "filter" that exists in "Encore\Admin\Grid\Column". Since this ...
行$table->increments('media_id');创建了一个自动递增的id列 * 和 * 一个主键。所以你随后的主键声明试图创建另一个主键,这是不允许的。自动递增id列不必是主键,但必须是索引。试试这个:
Prerequisites Versions PHP version: 7.2 Laravel version: 5.8 Package version: 3.1 Description Hello, is there a way to add comments to a cell in Laravel Excel 3.1? I am looking for it in github, maatwebsite & google but the only referenc...