Laravel8.x API Resources处理关联数据的返回
hi，我是温新，一名PHPer
在实际开发中，返回的数据有时候是很复杂的，有着较多的关联关系，那么，本篇文章贴近于实际开发进行演示，以博客为例子。
现在有了用户，还缺少文章与分类，现在新建这两个表。
<span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">CREATE</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">TABLE</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">`articles`</span> <span style="box-sizing: border-box;color: rgb(153, 153, 119)">(</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">`id`</span> <span style="box-sizing: border-box;color: rgb(232, 191, 106) !important">bigint</span><span style="box-sizing: border-box;color: rgb(153, 153, 119)">(</span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">20</span><span style="box-sizing: border-box;color: rgb(153, 153, 119)">)</span> <span style="box-sizing: border-box;color: rgb(232, 191, 106) !important">unsigned</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">NOT</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">NULL</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">AUTO_INCREMENT</span><span style="box-sizing: border-box">,</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">`user_id`</span> <span style="box-sizing: border-box;color: rgb(232, 191, 106) !important">bigint</span><span style="box-sizing: border-box;color: rgb(153, 153, 119)">(</span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">20</span><span style="box-sizing: border-box;color: rgb(153, 153, 119)">)</span> <span style="box-sizing: border-box;color: rgb(232, 191, 106) !important">unsigned</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">NOT</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">NULL</span><span style="box-sizing: border-box">,</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">`category_id`</span> <span style="box-sizing: border-box;color: rgb(232, 191, 106) !important">int</span><span style="box-sizing: border-box;color: rgb(153, 153, 119)">(</span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">10</span><span style="box-sizing: border-box;color: rgb(153, 153, 119)">)</span> <span style="box-sizing: border-box;color: rgb(232, 191, 106) !important">unsigned</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">NOT</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">NULL</span><span style="box-sizing: border-box">,</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">`title`</span> <span style="box-sizing: border-box;color: rgb(232, 191, 106) !important">varchar</span><span style="box-sizing: border-box;color: rgb(153, 153, 119)">(</span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">100</span><span style="box-sizing: border-box;color: rgb(153, 153, 119)">)</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">NOT</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">NULL</span><span style="box-sizing: border-box">,</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">`created_at`</span> <span style="box-sizing: border-box;color: rgb(232, 191, 106) !important">timestamp</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">NULL</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">DEFAULT</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">NULL</span><span style="box-sizing: border-box">,</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">`updated_at`</span> <span style="box-sizing: border-box;color: rgb(232, 191, 106) !important">timestamp</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">NULL</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">DEFAULT</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">NULL</span><span style="box-sizing: border-box">,</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">PRIMARY</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">KEY</span> <span style="box-sizing: border-box;color: rgb(153, 153, 119)">(</span><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">`id`</span><span style="box-sizing: border-box;color: rgb(153, 153, 119)">)</span><span style="box-sizing: border-box">,</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">KEY</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">`articles_user_id_index`</span> <span style="box-sizing: border-box;color: rgb(153, 153, 119)">(</span><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">`user_id`</span><span style="box-sizing: border-box;color: rgb(153, 153, 119)">)</span><span style="box-sizing: border-box">,</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">KEY</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">`articles_category_id_index`</span> <span style="box-sizing: border-box;color: rgb(153, 153, 119)">(</span><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">`category_id`</span><span style="box-sizing: border-box;color: rgb(153, 153, 119)">)</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(153, 153, 119)">)</span><span style="box-sizing: border-box">;</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">CREATE</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">TABLE</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">`categories`</span> <span style="box-sizing: border-box;color: rgb(153, 153, 119)">(</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">`id`</span> <span style="box-sizing: border-box;color: rgb(232, 191, 106) !important">bigint</span><span style="box-sizing: border-box;color: rgb(153, 153, 119)">(</span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">20</span><span style="box-sizing: border-box;color: rgb(153, 153, 119)">)</span> <span style="box-sizing: border-box;color: rgb(232, 191, 106) !important">unsigned</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">NOT</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">NULL</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">AUTO_INCREMENT</span><span style="box-sizing: border-box">,</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">`name`</span> <span style="box-sizing: border-box;color: rgb(232, 191, 106) !important">varchar</span><span style="box-sizing: border-box;color: rgb(153, 153, 119)">(</span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">80</span><span style="box-sizing: border-box;color: rgb(153, 153, 119)">)</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">NOT</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">NULL</span><span style="box-sizing: border-box">,</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">`created_at`</span> <span style="box-sizing: border-box;color: rgb(232, 191, 106) !important">timestamp</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">NULL</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">DEFAULT</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">NULL</span><span style="box-sizing: border-box">,</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">`updated_at`</span> <span style="box-sizing: border-box;color: rgb(232, 191, 106) !important">timestamp</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">NULL</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">DEFAULT</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">NULL</span><span style="box-sizing: border-box">,</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">PRIMARY</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">KEY</span> <span style="box-sizing: border-box;color: rgb(153, 153, 119)">(</span><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">`id`</span><span style="box-sizing: border-box;color: rgb(153, 153, 119)">)</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(153, 153, 119)">)</span><span style="box-sizing: border-box">;</span></span>
关于表中数据，自己去手动添加吧。
获取关联数据
第一步：明确需求
<span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// routes/api.php</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">Route</span>::<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">get</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'arts'</span>, <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">function</span> () {</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">return</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">\App\Models\Article</span>::<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">all</span>();</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">});</span>
返回的数据为
<span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">[</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> {</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span class="cm-string cm-property" style="box-sizing: border-box;color: rgb(97, 175, 239) !important">"id"</span>: <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">1</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span class="cm-string cm-property" style="box-sizing: border-box;color: rgb(97, 175, 239) !important">"user_id"</span>: <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">1</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span class="cm-string cm-property" style="box-sizing: border-box;color: rgb(97, 175, 239) !important">"category_id"</span>: <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">1</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span class="cm-string cm-property" style="box-sizing: border-box;color: rgb(97, 175, 239) !important">"title"</span>: <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">"文章1"</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> }</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">]</span>
在实际中，一般想要拿到用户名和分类名称，这也就需求，除了拿到这两个外，它们的信息都可以拿到。
第二步：建立关联关系
<span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// app/Modles/User.php</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 用户可以有很多文章</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">public</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">function</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">articles</span>()</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">{</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">return</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">hasMany</span>(<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">Article</span>::<span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">class</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'user_id'</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'id'</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">}</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// app/Modles/Article.php</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 用户与文章属于一对多关系</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">public</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">function</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">user</span>()</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">{</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">return</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">belongsTo</span>(<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">User</span>::<span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">class</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'user_id'</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'id'</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">}</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 文章与分类属于一对多关系</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">public</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">function</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">category</span>()</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">{</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">return</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">belongsTo</span>(<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">Category</span>::<span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">class</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'category_id'</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'id'</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">}</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// app/Modles/Category.php</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 一个分类可以有很多文章</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">public</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">function</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">articles</span>()</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">{</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">return</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">hasMany</span>(<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">Article</span>::<span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">class</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'category_id'</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'id'</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">}</span>
第三步：创建与编写resources与collection
创建
<span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">php</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">artisan</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">make</span>:<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">resource</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">ArticleResource</span> </span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">php</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">artisan</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">make</span>:<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">resource</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">ArticleCollection</span></span>
编写
<span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// app/Http/Resources/ArticleCollection.php</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">public</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">function</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">toArray</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$request</span>)</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">{</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 返回集合数据</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">return</span> [</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'data'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">collection</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> ];</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">}</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// app/Http/Resources/ArticleResource.php</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">public</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">function</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">toArray</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$request</span>)</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">{</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 集合数据进行处理</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">return</span> [</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'title'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">title</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// new 自身，对集合数据进行查询处理</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'author'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">new</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">UserResource</span>(<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">User</span>::<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">find</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">user_id</span>)),</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 单条数据直接取出分类名称</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'category'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">Category</span>::<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">find</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">category_id</span>)<span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">name</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> ];</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">}</span>
第四步：修改路由文件
<span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// routes/api.php</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">Route</span>::<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">get</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'arts'</span>, <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">function</span> () {</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$arts</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">\App\Models\Article</span>::<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">all</span>();</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">return</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">new</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">\App\Http\Resources\ArticleCollection</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$arts</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">});</span>
第五步：改写UserResource.php
注意：由于这一步我是延续之前文章进行使用的，因此需要对其进行改写，不然会报错。
在这里也可以控制用户数据的返回。
<span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// app/Http/Resources/UserResource.php </span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">public</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">function</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">toArray</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$request</span>)</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">{</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">return</span> [</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'id'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">id</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'username'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">name</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'email'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">email</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> ];</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">}</span>
第六步：访问路由获取数据
<span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">{</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span class="cm-string cm-property" style="box-sizing: border-box;color: rgb(97, 175, 239) !important">"data"</span>: [</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> {</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span class="cm-string cm-property" style="box-sizing: border-box;color: rgb(97, 175, 239) !important">"title"</span>: <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">"文章1"</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span class="cm-string cm-property" style="box-sizing: border-box;color: rgb(97, 175, 239) !important">"author"</span>: {</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span class="cm-string cm-property" style="box-sizing: border-box;color: rgb(97, 175, 239) !important">"id"</span>: <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">1</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span class="cm-string cm-property" style="box-sizing: border-box;color: rgb(97, 175, 239) !important">"username"</span>: <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">"lisi"</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span class="cm-string cm-property" style="box-sizing: border-box;color: rgb(97, 175, 239) !important">"email"</span>: <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">"111@qq.com"</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> },</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span class="cm-string cm-property" style="box-sizing: border-box;color: rgb(97, 175, 239) !important">"category"</span>: <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">"PHP"</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> },</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> ]</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">}</span>
对数据权限进行控制
简单的例子，有些字段是管理员可以看到，或者管理员可以看到所有信息。
演示管理管理员可以看到的字段。
<span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// app/Http/Resources/UserResource.php </span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">public</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">function</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">toArray</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$request</span>)</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">{</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 如果是管理员登录</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$admin</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">true</span>;</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">return</span> [</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'id'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">id</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'username'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">name</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'email'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">email</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> </span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">mergeWhen</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$admin</span>, [</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 管理员登录才能看到这两个字段</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'created_at'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">created_at</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'is_admin'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'管理员才能看到的字段'</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> ]),</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> ];</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">}</span>
用户下的所有文章
修改UserResource.php
<span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// app/Http/Resources/UserResource.php </span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">public</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">function</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">toArray</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$request</span>)</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">{</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">return</span> [</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'id'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">id</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'username'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">name</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'email'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">email</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'arts'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">articles</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> ];</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">}</span>
定义路由
<span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// routes/api.php</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">Route</span>::<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">get</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'/users/{id}'</span>, <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">function</span> (<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">\App\Models\User</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$user</span>, <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$id</span>) {</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$users</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">\App\Models\User</span>::<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">where</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'id'</span>,<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$id</span>)<span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">get</span>();</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">return</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">new</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">\App\Http\Resources\UserCollection</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$users</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">});</span>
我是温新
每天进步一点点，就一点
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