● videoThe Rewrite
Editing Many to Many Records
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SECTION
The Rewrite
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More Complex Many to Many
COURSE
Rails Revisited
33 lessons
About this lesson
We have many playlists, we have many tracks. How do we assign a track to a playlist using our Rails forms? Turns out, it's pretty easy:
<span class="language-xml"> <span class="hljs-tag"><<span class="hljs-name">h2</span> <span class="hljs-attr">class</span>=<span class="hljs-string">"text-2xl mt-2"</span>></span>Playlists<span class="hljs-tag"></<span class="hljs-name">h2</span>></span>
<span class="hljs-tag"><<span class="hljs-name">table</span>></span>
<%=</span><span class="language-ruby">form.collection_check_boxes(<span class="hljs-symbol">:playlist</span>\_ids, <span class="hljs-title class_">Playlist</span>.all, <span class="hljs-symbol">:id</span>, <span class="hljs-symbol">:name</span>) <span class="hljs-keyword">do</span> |<span class="hljs-params">b</span>| </span><span class="language-xml">%>
<span class="hljs-tag"><<span class="hljs-name">tr</span>></span>
<span class="hljs-tag"><<span class="hljs-name">td</span>></span><%=</span><span class="language-ruby"> b.check_box </span><span class="language-xml">%><span class="hljs-tag"></<span class="hljs-name">td</span>></span>
<span class="hljs-tag"><<span class="hljs-name">td</span>></span><%=</span><span class="language-ruby"> b.label </span><span class="language-xml">%><span class="hljs-tag"></<span class="hljs-name">td</span>></span>
<span class="hljs-tag"></<span class="hljs-name">tr</span>></span>
<%</span><span class="language-ruby"> <span class="hljs-keyword">end</span> </span><span class="language-xml">%>
<span class="hljs-tag"></<span class="hljs-name">table</span>></span></span>
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