Add automatic option for optimizing tables
>>> [!note] Migrated issue
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<!-- Migrated from issue #568790. -->
Reported by: [icecreamyou](https://www.drupal.org/user/201425)
>>>
<p>Hi,</p>
<p>I like the idea of this module. I've had a similar module I wrote sitting around on my HD that just runs OPTIMIZE (for MySQL) or VACUUM (for PGSQL) to clean up the database every so often. Similar functionality is in the Database Administration module, but you have to explicitly choose which tables to optimize, whereas the module I wrote automatically looks for tables that need optimizing and just optimizes those.</p>
<p>The code is fairly short, and I think it fits in pretty well with the purpose of this module, so I figured I'd post it here. If you want to keep it, great; if not, that's fine too.</p>
<div class="codeblock">
<pre><span style="color: #000000"><span style="color: #0000BB"><?php<br></span><span style="color: #FF8000">/**<br> * Implementation of hook_cron().<br> */<br></span><span style="color: #007700">function </span><span style="color: #0000BB">dbopt_cron</span><span style="color: #007700">() {<br> </span><span style="color: #FF8000">//Optimize every 6 hours. Ideally this would be a setting.<br> </span><span style="color: #007700">if (</span><span style="color: #0000BB">variable_get</span><span style="color: #007700">(</span><span style="color: #DD0000">'dbopt_last'</span><span style="color: #007700">, </span><span style="color: #0000BB">0</span><span style="color: #007700">) < </span><span style="color: #0000BB">time</span><span style="color: #007700">() - </span><span style="color: #0000BB">60 </span><span style="color: #007700">* </span><span style="color: #0000BB">60 </span><span style="color: #007700">* </span><span style="color: #0000BB">6</span><span style="color: #007700">) {<br> </span><span style="color: #FF8000">//This is not in the SQL standards, so PGSQL and MySQL have their own commands for it.<br> </span><span style="color: #007700">switch (</span><span style="color: #0000BB">$GLOBALS</span><span style="color: #007700">[</span><span style="color: #DD0000">'db_type'</span><span style="color: #007700">]) {<br> case </span><span style="color: #DD0000">'pgsql'</span><span style="color: #007700">:<br> </span><span style="color: #FF8000">//I don't run any sites on PGSQL so I haven't actually tested this, but the documentation indicates it should work.<br> </span><span style="color: #0000BB">db_query</span><span style="color: #007700">(</span><span style="color: #DD0000">"VACUUM"</span><span style="color: #007700">);<br> break;<br> case </span><span style="color: #DD0000">'mysqli'</span><span style="color: #007700">:<br> case </span><span style="color: #DD0000">'mysql'</span><span style="color: #007700">:<br> </span><span style="color: #0000BB">$tables </span><span style="color: #007700">= </span><span style="color: #0000BB">dbopt_get_tables</span><span style="color: #007700">(</span><span style="color: #0000BB">TRUE</span><span style="color: #007700">);<br> </span><span style="color: #0000BB">$tables </span><span style="color: #007700">= </span><span style="color: #0000BB">implode</span><span style="color: #007700">(</span><span style="color: #DD0000">','</span><span style="color: #007700">, </span><span style="color: #0000BB">$tables</span><span style="color: #007700">);<br> </span><span style="color: #0000BB">$result </span><span style="color: #007700">= </span><span style="color: #0000BB">db_query</span><span style="color: #007700">(</span><span style="color: #DD0000">"OPTIMIZE TABLE </span><span style="color: #0000BB">$tables</span><span style="color: #DD0000">"</span><span style="color: #007700">);<br> break;<br> </span><span style="color: #0000BB">watchdog</span><span style="color: #007700">(</span><span style="color: #DD0000">'dbopt'</span><span style="color: #007700">, </span><span style="color: #DD0000">'Database tables optimized'</span><span style="color: #007700">);<br> </span><span style="color: #0000BB">variable_set</span><span style="color: #007700">(</span><span style="color: #DD0000">'dbopt_last'</span><span style="color: #007700">, </span><span style="color: #0000BB">time</span><span style="color: #007700">());<br> }<br>}<br><br></span><span style="color: #FF8000">/**<br> * Gets a list of tables and returns them in an array.<br> */<br></span><span style="color: #007700">function </span><span style="color: #0000BB">dbopt_get_tables</span><span style="color: #007700">() {<br> </span><span style="color: #0000BB">$result </span><span style="color: #007700">= </span><span style="color: #0000BB">db_query</span><span style="color: #007700">(</span><span style="color: #DD0000">"SHOW TABLE STATUS"</span><span style="color: #007700">);<br> </span><span style="color: #0000BB">$values </span><span style="color: #007700">= array();<br> while (</span><span style="color: #0000BB">$table </span><span style="color: #007700">= </span><span style="color: #0000BB">db_fetch_array</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">)) {<br> if (</span><span style="color: #0000BB">$table</span><span style="color: #007700">[</span><span style="color: #DD0000">'Data_free'</span><span style="color: #007700">]) {<br> </span><span style="color: #0000BB">$values</span><span style="color: #007700">[] = </span><span style="color: #0000BB">$table</span><span style="color: #007700">[</span><span style="color: #DD0000">'Name'</span><span style="color: #007700">];<br> }<br> }<br> return </span><span style="color: #0000BB">$values</span><span style="color: #007700">;<br>}<br></span><span style="color: #0000BB">?></span></span></pre></div>
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