ambition/tmp/metric_fu/output/3c949a9cef12a5b36b0ed70b82e...

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  <div class="code"><pre><span class="line-numbers"><a href="#n1" name="n1">1</a></span><span class="keyword">class</span> <span class="class">Project</span> &lt; <span class="constant">ActiveRecord</span>::<span class="constant">Base</span>
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  <div class="code"><pre><span class="line-numbers"><a href="#n2" name="n2">2</a></span>  has_and_belongs_to_many <span class="symbol">:users</span>
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  <div class="code"><pre><span class="line-numbers"><a href="#n3" name="n3">3</a></span>
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  <div class="code"><pre><span class="line-numbers"><a href="#n4" name="n4">4</a></span>  validate <span class="symbol">:require_at_least_on_user</span>,<span class="key">on</span>: <span class="symbol">:update</span> <span class="comment"># </span>
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             <ul>

                 <li>remove trailing whitespace &raquo; rails_best_practices</li>

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  <div class="code"><pre><span class="line-numbers"><a href="#n5" name="n5">5</a></span>
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  <div class="code"><pre><span class="line-numbers"><a href="#n6" name="n6">6</a></span>  validates <span class="symbol">:name</span>, <span class="key">presence</span>: <span class="predefined-constant">true</span>, <span class="key">length</span>: { <span class="key">minimum</span>: <span class="integer">1</span>, <span class="key">maximum</span>: <span class="integer">50</span> }, <span class="key">uniqueness</span>: <span class="predefined-constant">true</span>
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  <div class="code"><pre><span class="line-numbers"><a href="#n7" name="n7">7</a></span>
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  <div class="code"><pre><span class="line-numbers"><a href="#n8" name="n8">8</a></span>  private
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  <div class="code"><pre><span class="line-numbers"> <a href="#n9" name="n9">9</a></span>
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  <div class="code"><pre><span class="line-numbers"><strong><a href="#n10" name="n10">10</a></strong></span>    <span class="keyword">def</span>  <span class="function">require_at_least_on_user</span>
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  <div class="code"><pre><span class="line-numbers"><a href="#n11" name="n11">11</a></span>      <span class="keyword">if</span> !users || users.size == <span class="integer">0</span>  <span class="comment"># size</span>
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  <div class="code"><pre><span class="line-numbers"><a href="#n12" name="n12">12</a></span>        errors[<span class="symbol">:users</span>] = <span class="string"><span class="delimiter">'</span><span class="content">at least one user in the project</span><span class="delimiter">'</span></span>
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  <div class="code"><pre><span class="line-numbers"><a href="#n13" name="n13">13</a></span>      <span class="keyword">end</span>
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  <div class="code"><pre><span class="line-numbers"><a href="#n14" name="n14">14</a></span>    <span class="keyword">end</span>
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  <div class="code"><pre><span class="line-numbers"><a href="#n15" name="n15">15</a></span><span class="keyword">end</span>
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