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Laravel框架学习笔记(二)项目实战之模型(Models)

2020-03-22 17:48:24
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1.实体关系图,由于不知道php有什么好的建模工具,这里我用的vs ado.net实体模型数据建模下面开始laravel编码,编码之前首先得配置数据库连接,在app/config/database.php文件'mysql' = array( 'driver' = 'mysql', 'read' = array( 'host' = '127.0.0.1:3306', 'write' = array( 'host' = '127.0.0.1:3306' 'database' = 'test', 'username' = 'root', 'password' = 'root', 'charset' = 'utf8', 'collation' = 'utf8_unicode_ci', 'prefix' = '', ),配置好之后,需要用到artisan工具,这是一个php命令工具在laravel目录中首先需要要通过artisan建立一个迁移 migrate ,这点和asp.net mvc几乎是一模一样在laravel目录中 shfit+右键打开命令窗口 输入artisan migrate:make create_XXXX会在app/database/migrations文件下生成一个带时间戳前缀的迁移文件代码:use Illuminate/Database/Schema/Blueprint;use Illuminate/Database/Migrations/Migration;html' target='_blank'>class CreateTablenameTable extends Migration { * Run the migrations. * @return void public function up() * Reverse the migrations. * @return void public function down()}看到这里有entityframework 迁移经验的基本上发现这是出奇的相似啊。接下来就是创建我们的实体结构,laravel 的结构生成器可以参考http://v4.golaravel.com/docs/4.1/schemause Illuminate/Database/Schema/Blueprint;use Illuminate/Database/Migrations/Migration;class CreateTablenameTable extends Migration { * Run the migrations. * @return void public function up() Schema::create('posts', function(Blueprint $table) { $table- increments('id'); $table- unsignedInteger('user_id'); $table- string('title'); $table- string('read_more'); $table- text('content'); $table- unsignedInteger('comment_count'); $table- timestamps(); Schema::create('comments', function(Blueprint $table) { $table- increments('id'); $table- unsignedInteger('post_id'); $table- string('commenter'); $table- string('email'); $table- text('comment'); $table- boolean('approved'); $table- timestamps(); Schema::table('users', function (Blueprint $table) { $table- create(); $table- increments('id'); $table- string('username'); $table- string('password'); $table- string('email'); $table- string('remember_token', 100)- nullable(); $table- timestamps(); * Reverse the migrations. * @return void public function down() Schema::drop('posts'); Schema::drop('comments'); Schema::drop('users');}继续在上面的命令窗口输入php artisan migrate 将执行迁移更多迁移相关知识:http://v4.golaravel.com/docs/4.1/migrations先写到这里明天继续PHP教程

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