The relationship between Laravel5 learning tables

A user can have many article, and a article corresponds to a user.

In the migration of article

 Publicfunction up () {schema::create ('Articles', function (Blueprint $table) {$table->increments ('ID'); $table->integer ('user_id'),unsigned (); $table-string('title'); $table-string('Body'); $table->timestamp ('Publish_at'); $table-timestamps (); $table->foreign ('user_id')                  ->references ('ID')                  ->on ('Users')                  ->ondelete ('Cascade');    }); }

In the model of article

  // An article belongs to an author     Public function User () {        return $this->belongsto ('app\user ' );    }

In the user's model

// a user has a lot of articles     Public function articles () {        return $this->hasmany ('app\articles ' );    }

If the information of the article is $article, then using $article->user, you can get the corresponding user's information.

Similarly, if the query out the user's information is $user, with $user->article, you can get the information of this user corresponding article.

The relationship between Laravel5 learning tables