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Module: Dynamoid::Finders::ClassMethods
— Documentation by YARD 0.7.5
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<span class="title">ClassMethods</span>
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<div id="content"><h1>Module: Dynamoid::Finders::ClassMethods
</h1>
<dl class="box">
<dt class="r1 last">Defined in:</dt>
<dd class="r1 last">lib/dynamoid/finders.rb</dd>
</dl>
<div class="clear"></div>
<h2>
Instance Method Summary
<small>(<a href="#" class="summary_toggle">collapse</a>)</small>
</h2>
<ul class="summary">
<li class="public ">
<span class="summary_signature">
<a href="#find-instance_method" title="#find (instance method)">- (Dynamoid::Document) <strong>find</strong>(*id) </a>
</span>
<span class="summary_desc"><div class='inline'><p>Find one or many objects, specified by one id or an array of ids.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#find_by_id-instance_method" title="#find_by_id (instance method)">- (Dynamoid::Document) <strong>find_by_id</strong>(id) </a>
</span>
<span class="summary_desc"><div class='inline'><p>Find one object directly by id.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#method_missing-instance_method" title="#method_missing (instance method)">- (Dynamoid::Document/Array) <strong>method_missing</strong>(method, *args) </a>
</span>
<span class="summary_desc"><div class='inline'><p>Find using exciting method_missing finders attributes.</p>
</div></span>
</li>
</ul>
<div id="method_missing_details" class="method_details_list">
<h2>Dynamic Method Handling</h2>
<p class="notice this">
This class handles dynamic methods through the <tt>method_missing</tt> method
</p>
<div class="method_details first">
<p class="signature first" id="method_missing-instance_method">
- (<tt><span class='object_link'><a href="../Document.html" title="Dynamoid::Document (module)">Dynamoid::Document</a></span>/Array</tt>) <strong>method_missing</strong>(method, *args)
</p><div class="docstring">
<div class="discussion">
<p>Find using exciting method_missing finders attributes. Uses criteria chains under the hood to accomplish this neatness.</p>
</div>
</div>
<div class="tags">
<div class="examples">
<h3>Examples:</h3>
<h4><div class='inline'><p>find a user by a first name</p>
</div></h4>
<pre class="example code"><span class='const'>User</span><span class='period'>.</span><span class='id identifier rubyid_find_by_first_name'>find_by_first_name</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>Josh</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span></pre>
<h4><div class='inline'><p>find all users by first and last name</p>
</div></h4>
<pre class="example code"><span class='const'>User</span><span class='period'>.</span><span class='id identifier rubyid_find_all_by_first_name_and_last_name'>find_all_by_first_name_and_last_name</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>Josh</span><span class='tstring_end'>'</span></span><span class='comma'>,</span> <span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>Symonds</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span></pre>
</div>
<h3>Returns:</h3>
<ul class="return">
<li>
<span class='type'>(<tt><span class='object_link'><a href="../Document.html" title="Dynamoid::Document (module)">Dynamoid::Document</a></span>/Array</tt>)</span>
—
<div class='inline'><p>the found object, or an array of found objects if all was somewhere in the method</p>
</div>
</li>
</ul>
<h3>Since:</h3>
<ul class="since">
<li>
<div class='inline'><p>0.2.0</p>
</div>
</li>
</ul>
</div><table class="source_code">
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<pre class="code"><span class="info file"># File 'lib/dynamoid/finders.rb', line 56</span>
<span class='kw'>def</span> <span class='id identifier rubyid_method_missing'>method_missing</span><span class='lparen'>(</span><span class='id identifier rubyid_method'>method</span><span class='comma'>,</span> <span class='op'>*</span><span class='id identifier rubyid_args'>args</span><span class='rparen'>)</span>
<span class='kw'>if</span> <span class='id identifier rubyid_method'>method</span> <span class='op'>=~</span> <span class='tstring'><span class='regexp_beg'>/</span><span class='tstring_content'>find</span><span class='regexp_end'>/</span></span>
<span class='id identifier rubyid_finder'>finder</span> <span class='op'>=</span> <span class='id identifier rubyid_method'>method</span><span class='period'>.</span><span class='id identifier rubyid_to_s'>to_s</span><span class='period'>.</span><span class='id identifier rubyid_split'>split</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>_by_</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='period'>.</span><span class='id identifier rubyid_first'>first</span>
<span class='id identifier rubyid_attributes'>attributes</span> <span class='op'>=</span> <span class='id identifier rubyid_method'>method</span><span class='period'>.</span><span class='id identifier rubyid_to_s'>to_s</span><span class='period'>.</span><span class='id identifier rubyid_split'>split</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>_by_</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span><span class='period'>.</span><span class='id identifier rubyid_last'>last</span><span class='period'>.</span><span class='id identifier rubyid_split'>split</span><span class='lparen'>(</span><span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>_and_</span><span class='tstring_end'>'</span></span><span class='rparen'>)</span>
<span class='id identifier rubyid_chain'>chain</span> <span class='op'>=</span> <span class='const'>Dynamoid</span><span class='op'>::</span><span class='const'>Criteria</span><span class='op'>::</span><span class='const'>Chain</span><span class='period'>.</span><span class='id identifier rubyid_new'>new</span><span class='lparen'>(</span><span class='kw'>self</span><span class='rparen'>)</span>
<span class='id identifier rubyid_chain'>chain</span><span class='period'>.</span><span class='id identifier rubyid_query'>query</span> <span class='op'>=</span> <span class='const'>Hash</span><span class='period'>.</span><span class='id identifier rubyid_new'>new</span><span class='period'>.</span><span class='id identifier rubyid_tap'>tap</span> <span class='lbrace'>{</span><span class='op'>|</span><span class='id identifier rubyid_h'>h</span><span class='op'>|</span> <span class='id identifier rubyid_attributes'>attributes</span><span class='period'>.</span><span class='id identifier rubyid_each_with_index'>each_with_index</span> <span class='lbrace'>{</span><span class='op'>|</span><span class='id identifier rubyid_attr'>attr</span><span class='comma'>,</span> <span class='id identifier rubyid_index'>index</span><span class='op'>|</span> <span class='id identifier rubyid_h'>h</span><span class='lbracket'>[</span><span class='id identifier rubyid_attr'>attr</span><span class='period'>.</span><span class='id identifier rubyid_to_sym'>to_sym</span><span class='rbracket'>]</span> <span class='op'>=</span> <span class='id identifier rubyid_args'>args</span><span class='lbracket'>[</span><span class='id identifier rubyid_index'>index</span><span class='rbracket'>]</span><span class='rbrace'>}</span><span class='rbrace'>}</span>
<span class='kw'>if</span> <span class='id identifier rubyid_finder'>finder</span> <span class='op'>=~</span> <span class='tstring'><span class='regexp_beg'>/</span><span class='tstring_content'>all</span><span class='regexp_end'>/</span></span>
<span class='kw'>return</span> <span class='id identifier rubyid_chain'>chain</span><span class='period'>.</span><span class='id identifier rubyid_all'>all</span>
<span class='kw'>else</span>
<span class='kw'>return</span> <span class='id identifier rubyid_chain'>chain</span><span class='period'>.</span><span class='id identifier rubyid_first'>first</span>
<span class='kw'>end</span>
<span class='kw'>else</span>
<span class='kw'>super</span>
<span class='kw'>end</span>
<span class='kw'>end</span></pre>
</td>
</tr>
</table>
</div>
</div>
<div id="instance_method_details" class="method_details_list">
<h2>Instance Method Details</h2>
<div class="method_details first">
<p class="signature first" id="find-instance_method">
- (<tt><span class='object_link'><a href="../Document.html" title="Dynamoid::Document (module)">Dynamoid::Document</a></span></tt>) <strong>find</strong>(*id)
</p><div class="docstring">
<div class="discussion">
<p>Find one or many objects, specified by one id or an array of ids.</p>
</div>
</div>
<div class="tags">
<h3>Parameters:</h3>
<ul class="param">
<li>
<span class='name'>*id</span>
<span class='type'>(<tt>Array/String</tt>)</span>
—
<div class='inline'><p>an array of ids or one single id</p>
</div>
</li>
</ul>
<h3>Returns:</h3>
<ul class="return">
<li>
<span class='type'>(<tt><span class='object_link'><a href="../Document.html" title="Dynamoid::Document (module)">Dynamoid::Document</a></span></tt>)</span>
—
<div class='inline'><p>one object or an array of objects, depending on whether the input was an array or not</p>
</div>
</li>
</ul>
<h3>Since:</h3>
<ul class="since">
<li>
<div class='inline'><p>0.2.0</p>
</div>
</li>
</ul>
</div><table class="source_code">
<tr>
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<pre class="lines">
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<pre class="code"><span class="info file"># File 'lib/dynamoid/finders.rb', line 18</span>
<span class='kw'>def</span> <span class='id identifier rubyid_find'>find</span><span class='lparen'>(</span><span class='op'>*</span><span class='id identifier rubyid_id'>id</span><span class='rparen'>)</span>
<span class='id identifier rubyid_id'>id</span> <span class='op'>=</span> <span class='const'>Array</span><span class='lparen'>(</span><span class='id identifier rubyid_id'>id</span><span class='period'>.</span><span class='id identifier rubyid_flatten'>flatten</span><span class='period'>.</span><span class='id identifier rubyid_uniq'>uniq</span><span class='rparen'>)</span>
<span class='kw'>if</span> <span class='id identifier rubyid_id'>id</span><span class='period'>.</span><span class='id identifier rubyid_count'>count</span> <span class='op'>==</span> <span class='int'>1</span>
<span class='kw'>self</span><span class='period'>.</span><span class='id identifier rubyid_find_by_id'>find_by_id</span><span class='lparen'>(</span><span class='id identifier rubyid_id'>id</span><span class='period'>.</span><span class='id identifier rubyid_first'>first</span><span class='rparen'>)</span>
<span class='kw'>else</span>
<span class='id identifier rubyid_items'>items</span> <span class='op'>=</span> <span class='const'>Dynamoid</span><span class='op'>::</span><span class='const'>Adapter</span><span class='period'>.</span><span class='id identifier rubyid_read'>read</span><span class='lparen'>(</span><span class='kw'>self</span><span class='period'>.</span><span class='id identifier rubyid_table_name'>table_name</span><span class='comma'>,</span> <span class='id identifier rubyid_id'>id</span><span class='rparen'>)</span>
<span class='id identifier rubyid_items'>items</span><span class='lbracket'>[</span><span class='kw'>self</span><span class='period'>.</span><span class='id identifier rubyid_table_name'>table_name</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_collect'>collect</span><span class='lbrace'>{</span><span class='op'>|</span><span class='id identifier rubyid_i'>i</span><span class='op'>|</span> <span class='kw'>self</span><span class='period'>.</span><span class='id identifier rubyid_build'>build</span><span class='lparen'>(</span><span class='id identifier rubyid_i'>i</span><span class='rparen'>)</span><span class='period'>.</span><span class='id identifier rubyid_tap'>tap</span> <span class='lbrace'>{</span> <span class='op'>|</span><span class='id identifier rubyid_o'>o</span><span class='op'>|</span> <span class='id identifier rubyid_o'>o</span><span class='period'>.</span><span class='id identifier rubyid_new_record'>new_record</span> <span class='op'>=</span> <span class='kw'>false</span> <span class='rbrace'>}</span> <span class='rbrace'>}</span>
<span class='kw'>end</span>
<span class='kw'>end</span></pre>
</td>
</tr>
</table>
</div>
<div class="method_details ">
<p class="signature " id="find_by_id-instance_method">
- (<tt><span class='object_link'><a href="../Document.html" title="Dynamoid::Document (module)">Dynamoid::Document</a></span></tt>) <strong>find_by_id</strong>(id)
</p><div class="docstring">
<div class="discussion">
<p>Find one object directly by id.</p>
</div>
</div>
<div class="tags">
<h3>Parameters:</h3>
<ul class="param">
<li>
<span class='name'>id</span>
<span class='type'>(<tt>String</tt>)</span>
—
<div class='inline'><p>the id of the object to find</p>
</div>
</li>
</ul>
<h3>Returns:</h3>
<ul class="return">
<li>
<span class='type'>(<tt><span class='object_link'><a href="../Document.html" title="Dynamoid::Document (module)">Dynamoid::Document</a></span></tt>)</span>
—
<div class='inline'><p>the found object, or nil if nothing was found</p>
</div>
</li>
</ul>
<h3>Since:</h3>
<ul class="since">
<li>
<div class='inline'><p>0.2.0</p>
</div>
</li>
</ul>
</div><table class="source_code">
<tr>
<td>
<pre class="lines">
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</td>
<td>
<pre class="code"><span class="info file"># File 'lib/dynamoid/finders.rb', line 35</span>
<span class='kw'>def</span> <span class='id identifier rubyid_find_by_id'>find_by_id</span><span class='lparen'>(</span><span class='id identifier rubyid_id'>id</span><span class='rparen'>)</span>
<span class='kw'>if</span> <span class='id identifier rubyid_item'>item</span> <span class='op'>=</span> <span class='const'>Dynamoid</span><span class='op'>::</span><span class='const'>Adapter</span><span class='period'>.</span><span class='id identifier rubyid_read'>read</span><span class='lparen'>(</span><span class='kw'>self</span><span class='period'>.</span><span class='id identifier rubyid_table_name'>table_name</span><span class='comma'>,</span> <span class='id identifier rubyid_id'>id</span><span class='rparen'>)</span>
<span class='id identifier rubyid_obj'>obj</span> <span class='op'>=</span> <span class='kw'>self</span><span class='period'>.</span><span class='id identifier rubyid_new'>new</span><span class='lparen'>(</span><span class='id identifier rubyid_item'>item</span><span class='rparen'>)</span>
<span class='id identifier rubyid_obj'>obj</span><span class='period'>.</span><span class='id identifier rubyid_new_record'>new_record</span> <span class='op'>=</span> <span class='kw'>false</span>
<span class='kw'>return</span> <span class='id identifier rubyid_obj'>obj</span>
<span class='kw'>else</span>
<span class='kw'>return</span> <span class='kw'>nil</span>
<span class='kw'>end</span>
<span class='kw'>end</span></pre>
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