Recent

• Arrays, loops, strings...
• Similar virtual attributes and their getters/setter
• Check type is XML Serializable
• Serena Collage slideshow
• Shortest regular expression for matching a subdomain.
• Caching Methods
• Tab-Switching in jQuery
• Apache log file sorting
• How to find max, min of three numbers?
• repeated code in rspec model test

Popular

• Caching Methods
• How to find max, min of three numbers?
• Similar virtual attributes and their getters/setter
• Arrays, loops, strings...
• Shortest regular expression for matching a subdomain.
• Check type is XML Serializable
• Apache log file sorting
• Tab-Switching in jQuery
• Serena Collage slideshow
• A simple factorial program.

Pastable version of Merging two sets of conditions

<div style="overflow:auto;border:solid 1px #ccc;background:#000;color:#F8F8F8"> <div class="section"> <pre style="float:left;margin:0 10px;border-right:0;color:#666;">1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37</pre> <pre class="sunburst"><span style="color:#AEAEAE;font-style:italic;"><span style="color:#AEAEAE;font-style:italic;">#</span> Merges two sets of condition options for ActiveRecord::Base find calls</span> <span style="color:#E28964;">def</span> <span style="color:#89BDFF;">merge_conditions</span>(<span style="color:#3E87E3;">base_conditions<span style="color:#3E87E3;">,</span> new_conditions<span style="color:#3E87E3;">,</span> boolean_operator<span style="color:#E28964;">=</span><span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>AND<span style="color:#65B042;">&quot;</span></span></span>) <span style="color:#E28964;">return</span> base_conditions <span style="color:#E28964;">if</span> new_conditions.<span style="color:#89BDFF;">blank?</span> <span style="color:#E28964;">return</span> new_conditions <span style="color:#E28964;">if</span> base_conditions.<span style="color:#89BDFF;">blank?</span> <span style="color:#E28964;">case</span> base_conditions <span style="color:#E28964;">when</span> <span style="color:#3E87E3;">Hash</span> <span style="color:#E28964;">case</span> new_conditions <span style="color:#E28964;">when</span> <span style="color:#3E87E3;">Hash</span> base_conditions.<span style="color:#89BDFF;">merge</span>(new_conditions) <span style="color:#E28964;">else</span> <span style="color:#E28964;">raise</span> <span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>Hash conditions can only be merged with other hash conditions<span style="color:#65B042;">&quot;</span></span> <span style="color:#E28964;">end</span> <span style="color:#E28964;">when</span> <span style="color:#3E87E3;">Array</span> <span style="color:#E28964;">case</span> new_conditions <span style="color:#E28964;">when</span> <span style="color:#3E87E3;">Array</span> [<span style="color:#65B042;"><span style="color:#65B042;">&quot;</span><span style="color:#DAEFA3;"><span style="color:#DAEFA3;">#{</span>base_conditions<span style="color:#DAEFA3;">[</span><span style="color:#DDF2A4;">0</span><span style="color:#DAEFA3;">]</span><span style="color:#DAEFA3;">}</span></span> <span style="color:#DAEFA3;"><span style="color:#DAEFA3;">#{</span>boolean_operator<span style="color:#DAEFA3;">}</span></span> <span style="color:#DAEFA3;"><span style="color:#DAEFA3;">#{</span>new_conditions<span style="color:#DAEFA3;">[</span><span style="color:#DDF2A4;">0</span><span style="color:#DAEFA3;">]</span><span style="color:#DAEFA3;">}</span></span><span style="color:#65B042;">&quot;</span></span>, base_conditions[<span style="color:#3387CC;">1</span>..<span style="color:#E28964;">-</span><span style="color:#3387CC;">1</span>], new_conditions[<span style="color:#3387CC;">1</span>..<span style="color:#E28964;">-</span><span style="color:#3387CC;">1</span>]].<span style="color:#89BDFF;">flatten</span> <span style="color:#E28964;">when</span> <span style="color:#3E87E3;">String</span> conditions <span style="color:#E28964;">=</span> base_conditions.<span style="color:#89BDFF;">dup</span> conditions[<span style="color:#3387CC;">0</span>] <span style="color:#E28964;">=</span> <span style="color:#65B042;"><span style="color:#65B042;">&quot;</span><span style="color:#DAEFA3;"><span style="color:#DAEFA3;">#{</span>base_conditions<span style="color:#DAEFA3;">[</span><span style="color:#DDF2A4;">0</span><span style="color:#DAEFA3;">]</span><span style="color:#DAEFA3;">}</span></span> <span style="color:#DAEFA3;"><span style="color:#DAEFA3;">#{</span>boolean_operator<span style="color:#DAEFA3;">}</span></span> <span style="color:#DAEFA3;"><span style="color:#DAEFA3;">#{</span>new_conditions<span style="color:#DAEFA3;">}</span></span><span style="color:#65B042;">&quot;</span></span> conditions <span style="color:#E28964;">else</span> <span style="color:#E28964;">raise</span> <span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>Array conditions can only be merged with array or string conditions<span style="color:#65B042;">&quot;</span></span> <span style="color:#E28964;">end</span> <span style="color:#E28964;">when</span> <span style="color:#3E87E3;">String</span> <span style="color:#E28964;">case</span> new_conditions <span style="color:#E28964;">when</span> <span style="color:#3E87E3;">String</span> <span style="color:#65B042;"><span style="color:#65B042;">&quot;</span><span style="color:#DAEFA3;"><span style="color:#DAEFA3;">#{</span>base_conditions<span style="color:#DAEFA3;">}</span></span> <span style="color:#DAEFA3;"><span style="color:#DAEFA3;">#{</span>boolean_operator<span style="color:#DAEFA3;">}</span></span> <span style="color:#DAEFA3;"><span style="color:#DAEFA3;">#{</span>new_conditions<span style="color:#DAEFA3;">}</span></span><span style="color:#65B042;">&quot;</span></span> <span style="color:#E28964;">when</span> <span style="color:#3E87E3;">Array</span> conditions <span style="color:#E28964;">=</span> new_conditions.<span style="color:#89BDFF;">dup</span> conditions[<span style="color:#3387CC;">0</span>] <span style="color:#E28964;">=</span> <span style="color:#65B042;"><span style="color:#65B042;">&quot;</span><span style="color:#DAEFA3;"><span style="color:#DAEFA3;">#{</span>base_conditions<span style="color:#DAEFA3;">}</span></span> <span style="color:#DAEFA3;"><span style="color:#DAEFA3;">#{</span>boolean_operator<span style="color:#DAEFA3;">}</span></span> <span style="color:#DAEFA3;"><span style="color:#DAEFA3;">#{</span>new_conditions<span style="color:#DAEFA3;">[</span><span style="color:#DDF2A4;">0</span><span style="color:#DAEFA3;">]</span><span style="color:#DAEFA3;">}</span></span><span style="color:#65B042;">&quot;</span></span> conditions <span style="color:#E28964;">else</span> <span style="color:#E28964;">raise</span> <span style="color:#65B042;"><span style="color:#65B042;">&quot;</span>String conditions can only be merged with string or array conditions<span style="color:#65B042;">&quot;</span></span> <span style="color:#E28964;">end</span> <span style="color:#E28964;">end</span> <span style="color:#E28964;">end</span> </pre> </div> </div> <a href="http://refactormycode.com/codes/84-merging-two-sets-of-conditions" style="color:#fff" title="As seen on RefactorMyCode.com"><img alt="Small_logo" src="http://refactormycode.com/images/small_logo.gif" style="border:0" /></a>