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	<id>https://rt-wiki.bestpractical.com/index.php?action=history&amp;feed=atom&amp;title=AddRefersToOnEqualCustomField</id>
	<title>AddRefersToOnEqualCustomField - Revision history</title>
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	<updated>2026-08-22T14:03:53Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://rt-wiki.bestpractical.com/index.php?title=AddRefersToOnEqualCustomField&amp;diff=26349&amp;oldid=prev</id>
		<title>Tharn at 00:51, 14 August 2016</title>
		<link rel="alternate" type="text/html" href="https://rt-wiki.bestpractical.com/index.php?title=AddRefersToOnEqualCustomField&amp;diff=26349&amp;oldid=prev"/>
		<updated>2016-08-14T00:51:18Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;col class=&quot;diff-content&quot; /&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 20:51, 13 August 2016&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l5&quot;&gt;Line 5:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 5:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;It also triggers if the custom field is changed, but makes no effort to delete any links.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;It also triggers if the custom field is changed, but makes no effort to delete any links.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  &amp;lt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;nowiki&lt;/del&gt;&amp;gt;my $cfname = &#039;SerialNumber&#039;;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  &amp;lt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;pre&lt;/ins&gt;&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt; &lt;/ins&gt;my $cfname = &#039;SerialNumber&#039;;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  my $cf = RT::CustomField-&amp;amp;gt;new(RT-&amp;amp;gt;SystemUser);&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  my $cf = RT::CustomField-&amp;amp;gt;new(RT-&amp;amp;gt;SystemUser);&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  $cf-&amp;amp;gt;LoadByName(Name =&amp;amp;gt; $cfname);&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  $cf-&amp;amp;gt;LoadByName(Name =&amp;amp;gt; $cfname);&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l43&quot;&gt;Line 43:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 44:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;   &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;   &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  1;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  1;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt; &lt;/del&gt;&amp;lt;/&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;nowiki&lt;/del&gt;&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;/&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;pre&lt;/ins&gt;&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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&lt;/table&gt;</summary>
		<author><name>Tharn</name></author>
	</entry>
	<entry>
		<id>https://rt-wiki.bestpractical.com/index.php?title=AddRefersToOnEqualCustomField&amp;diff=60&amp;oldid=prev</id>
		<title>Admin: 2 revisions imported</title>
		<link rel="alternate" type="text/html" href="https://rt-wiki.bestpractical.com/index.php?title=AddRefersToOnEqualCustomField&amp;diff=60&amp;oldid=prev"/>
		<updated>2016-04-06T20:03:12Z</updated>

		<summary type="html">&lt;p&gt;2 revisions imported&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;This isn&amp;#039;t really an action, but actually used as a condition which is also acting. Which probably means it could be written better, but here goes.&lt;br /&gt;
&lt;br /&gt;
We use it to check for serial numbers on an incoming repair queue. If the serial numbers match, the unit to be repaired has been seen before, so create [[RefersTo]] links between them.&lt;br /&gt;
&lt;br /&gt;
It also triggers if the custom field is changed, but makes no effort to delete any links.&lt;br /&gt;
&lt;br /&gt;
 &amp;lt;nowiki&amp;gt;my $cfname = &amp;#039;SerialNumber&amp;#039;;&lt;br /&gt;
 my $cf = RT::CustomField-&amp;amp;gt;new(RT-&amp;amp;gt;SystemUser);&lt;br /&gt;
 $cf-&amp;amp;gt;LoadByName(Name =&amp;amp;gt; $cfname);&lt;br /&gt;
 my $cfid = $cf-&amp;amp;gt;Id();&lt;br /&gt;
 &lt;br /&gt;
 # If create or change to custom field&lt;br /&gt;
 unless (&lt;br /&gt;
  ( $self-&amp;amp;gt;TransactionObj-&amp;amp;gt;Type eq &amp;quot;CustomField&amp;quot;&lt;br /&gt;
    &amp;amp;amp;&amp;amp;amp;  $self-&amp;amp;gt;TransactionObj-&amp;amp;gt;Field == $cfid )&lt;br /&gt;
  ||  $self-&amp;amp;gt;TransactionObj-&amp;amp;gt;Type eq &amp;quot;Create&amp;quot;&lt;br /&gt;
  ) {&lt;br /&gt;
    return 0;&lt;br /&gt;
 }&lt;br /&gt;
 &lt;br /&gt;
 my $sn = $self-&amp;amp;gt;TicketObj-&amp;amp;gt;FirstCustomFieldValue($cfname);&lt;br /&gt;
 &lt;br /&gt;
 my $tickets = new RT::Tickets(RT-&amp;amp;gt;SystemUser);&lt;br /&gt;
 #$tickets-&amp;amp;gt;LimitQueue( VALUE =&amp;amp;gt; $queuename);&lt;br /&gt;
 $tickets-&amp;amp;gt;LimitCustomField(&lt;br /&gt;
   CUSTOMFIELD =&amp;amp;gt; $cfid,&lt;br /&gt;
     OPERATOR =&amp;amp;gt; &amp;#039;=&amp;#039;,&lt;br /&gt;
     VALUE =&amp;amp;gt; $sn&lt;br /&gt;
   );&lt;br /&gt;
 &lt;br /&gt;
 my $i=0;&lt;br /&gt;
 while (my $ticket = $tickets-&amp;amp;gt;Next) {&lt;br /&gt;
   if ($ticket-&amp;amp;gt;id != $self-&amp;amp;gt;TicketObj-&amp;amp;gt;id) {&lt;br /&gt;
     $i++;&lt;br /&gt;
     $self-&amp;amp;gt;TicketObj-&amp;amp;gt;AddLink(Type=&amp;amp;gt;&amp;#039;RefersTo&amp;#039;,Target=&amp;amp;gt;$ticket-&amp;amp;gt;id);&lt;br /&gt;
   }&lt;br /&gt;
 }&lt;br /&gt;
 &lt;br /&gt;
 # This means you can use it as a condition and have another action if it did something&lt;br /&gt;
 unless ($i &amp;amp;gt; 0) {&lt;br /&gt;
   return 0;&lt;br /&gt;
 }&lt;br /&gt;
 &lt;br /&gt;
 1;&lt;br /&gt;
 &amp;lt;/nowiki&amp;gt;&lt;/div&gt;</summary>
		<author><name>Admin</name></author>
	</entry>
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