397 lines
13 KiB
HTML
397 lines
13 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<title>
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Bugzilla::Field</title>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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<link rel="stylesheet" title="style" type="text/css" href=".././../../../style.css" media="all" >
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</head>
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<body id="pod">
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<p class="backlinktop"><b><a name="___top" href="../index.html" accesskey="1" title="All Documents"><<</a></b></p>
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<h1>Bugzilla::Field</h1>
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<div class='indexgroup'>
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<ul class='indexList indexList1'>
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<li class='indexItem indexItem1'><a href='#NAME'>NAME</a>
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<li class='indexItem indexItem1'><a href='#SYNOPSIS'>SYNOPSIS</a>
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<li class='indexItem indexItem1'><a href='#DESCRIPTION'>DESCRIPTION</a>
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<ul class='indexList indexList2'>
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<li class='indexItem indexItem2'><a href='#Instance_Properties'>Instance Properties</a>
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<li class='indexItem indexItem2'><a href='#Instance_Mutators'>Instance Mutators</a>
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<li class='indexItem indexItem2'><a href='#Instance_Method'>Instance Method</a>
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<li class='indexItem indexItem2'><a href='#Class_Methods'>Class Methods</a>
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<li class='indexItem indexItem2'><a href='#Data_Validation'>Data Validation</a>
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</ul>
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</ul>
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</div>
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<h1><a class='u' href='#___top' title='click to go to top of document'
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name="NAME"
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>NAME</a></h1>
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<p>Bugzilla::Field - a particular piece of information about bugs and useful routines for form field manipulation</p>
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<h1><a class='u' href='#___top' title='click to go to top of document'
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name="SYNOPSIS"
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>SYNOPSIS</a></h1>
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<pre class="code"> use Bugzilla;
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use Data::Dumper;
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# Display information about all fields.
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print Dumper(Bugzilla->get_fields());
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# Display information about non-obsolete custom fields.
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print Dumper(Bugzilla->active_custom_fields);
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use Bugzilla::Field;
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# Display information about non-obsolete custom fields.
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# Bugzilla->get_fields() is a wrapper around Bugzilla::Field->match(),
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# so both methods take the same arguments.
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print Dumper(Bugzilla::Field->match({ obsolete => 0, custom => 1 }));
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# Create or update a custom field or field definition.
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my $field = Bugzilla::Field->create(
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{name => 'cf_silly', description => 'Silly', custom => 1});
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# Instantiate a Field object for an existing field.
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my $field = new Bugzilla::Field({name => 'qacontact_accessible'});
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if ($field->obsolete) {
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print $field->description . " is obsolete\n";
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}
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# Validation Routines
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check_field($name, $value, \@legal_values, $no_warn);
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$fieldid = get_field_id($fieldname);</pre>
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<h1><a class='u' href='#___top' title='click to go to top of document'
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name="DESCRIPTION"
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>DESCRIPTION</a></h1>
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<p>Field.pm defines field objects, which represent the particular pieces of information that Bugzilla stores about bugs.</p>
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<p>This package also provides functions for dealing with CGI form fields.</p>
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<p><code class="code">Bugzilla::Field</code> is an implementation of <a href="../Bugzilla/Object.html" class="podlinkpod"
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>Bugzilla::Object</a>, and so provides all of the methods available in <a href="../Bugzilla/Object.html" class="podlinkpod"
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>Bugzilla::Object</a>, in addition to what is documented here.</p>
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<h2><a class='u' href='#___top' title='click to go to top of document'
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name="Instance_Properties"
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>Instance Properties</a></h2>
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<dl>
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<dt><a name="name"
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><code class="code">name</code></a></dt>
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<dd>
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<p>the name of the field in the database; begins with "cf_" if field is a custom field, but test the value of the boolean "custom" property to determine if a given field is a custom field;</p>
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<dt><a name="description"
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><code class="code">description</code></a></dt>
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<dd>
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<p>a short string describing the field; displayed to Bugzilla users in several places within Bugzilla's UI, f.e. as the form field label on the "show bug" page;</p>
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</dd>
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</dl>
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<dl>
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<dt><a name="type"
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><code class="code">type</code></a></dt>
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<dd>
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<p>an integer specifying the kind of field this is; values correspond to the FIELD_TYPE_* constants in Constants.pm</p>
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</dd>
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</dl>
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<dl>
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<dt><a name="custom"
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><code class="code">custom</code></a></dt>
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<dd>
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<p>a boolean specifying whether or not the field is a custom field; if true, field name should start "cf_", but use this property to determine which fields are custom fields;</p>
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</dd>
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</dl>
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<dl>
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<dt><a name="in_new_bugmail"
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><code class="code">in_new_bugmail</code></a></dt>
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<dd>
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<p>a boolean specifying whether or not the field is displayed in bugmail for newly-created bugs;</p>
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</dd>
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</dl>
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<dl>
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<dt><a name="sortkey"
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><code class="code">sortkey</code></a></dt>
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<dd>
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<p>an integer specifying the sortkey of the field.</p>
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</dd>
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</dl>
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<dl>
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<dt><a name="obsolete"
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><code class="code">obsolete</code></a></dt>
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<dd>
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<p>a boolean specifying whether or not the field is obsolete;</p>
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</dd>
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</dl>
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<dl>
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<dt><a name="enter_bug"
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><code class="code">enter_bug</code></a></dt>
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<dd>
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<p>A boolean specifying whether or not this field should appear on enter_bug.cgi</p>
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</dd>
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</dl>
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<dl>
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<dt><a name="buglist"
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><code class="code">buglist</code></a></dt>
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<dd>
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<p>A boolean specifying whether or not this field is selectable as a display or order column in buglist.cgi</p>
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</dd>
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</dl>
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<dl>
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<dt><a name="is_select"
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><code class="code">is_select</code></a></dt>
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<dd>
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<p>True if this is a <code class="code">FIELD_TYPE_SINGLE_SELECT</code> or <code class="code">FIELD_TYPE_MULTI_SELECT</code> field. It is only safe to call <a href="#legal_values" class="podlinkpod"
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>"legal_values"</a> if this is true.</p>
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<dt><a name="legal_values"
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><code class="code">legal_values</code></a></dt>
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<dd>
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<p>Valid values for this field, as an array of <a href="../Bugzilla/Field/Choice.html" class="podlinkpod"
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>Bugzilla::Field::Choice</a> objects.</p>
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</dd>
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</dl>
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<dl>
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<dt><a name="visibility_field"
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><code class="code">visibility_field</code></a></dt>
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<dd>
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<p>What field controls this field's visibility? Returns a <code class="code">Bugzilla::Field</code> object representing the field that controls this field's visibility.</p>
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<p>Returns undef if there is no field that controls this field's visibility.</p>
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</dd>
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</dl>
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<dl>
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<dt><a name="visibility_value"
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><code class="code">visibility_value</code></a></dt>
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<dd>
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<p>If we have a <a href="#visibility_field" class="podlinkpod"
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>"visibility_field"</a>, then what value does that field have to be set to in order to show this field? Returns a <a href="../Bugzilla/Field/Choice.html" class="podlinkpod"
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>Bugzilla::Field::Choice</a> or undef if there is no <code class="code">visibility_field</code> set.</p>
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</dd>
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</dl>
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<dl>
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<dt><a name="controls_visibility_of"
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><code class="code">controls_visibility_of</code></a></dt>
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<dd>
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<p>An arrayref of <code class="code">Bugzilla::Field</code> objects, representing fields that this field controls the visibility of.</p>
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</dd>
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</dl>
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<dl>
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<dt><a name="value_field"
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><code class="code">value_field</code></a></dt>
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<dd>
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<p>The Bugzilla::Field that controls the list of values for this field.</p>
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<p>Returns undef if there is no field that controls this field's visibility.</p>
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</dd>
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</dl>
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<dl>
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<dt><a name="controls_values_of"
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><code class="code">controls_values_of</code></a></dt>
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<dd>
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<p>An arrayref of <code class="code">Bugzilla::Field</code> objects, representing fields that this field controls the values of.</p>
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</dd>
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</dl>
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<h2><a class='u' href='#___top' title='click to go to top of document'
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name="Instance_Mutators"
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>Instance Mutators</a></h2>
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<p>These set the particular field that they are named after.</p>
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<p>They take a single value--the new value for that field.</p>
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<p>They will throw an error if you try to set the values to something invalid.</p>
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<dl>
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<dt><a name="set_description"
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><code class="code">set_description</code></a></dt>
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<dd>
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<dt><a name="set_enter_bug"
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><code class="code">set_enter_bug</code></a></dt>
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<dd>
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<dt><a name="set_obsolete"
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><code class="code">set_obsolete</code></a></dt>
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<dd>
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<dt><a name="set_sortkey"
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><code class="code">set_sortkey</code></a></dt>
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<dd>
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<dt><a name="set_in_new_bugmail"
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><code class="code">set_in_new_bugmail</code></a></dt>
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<dd>
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<dt><a name="set_buglist"
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><code class="code">set_buglist</code></a></dt>
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<dd>
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<dt><a name="set_visibility_field"
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><code class="code">set_visibility_field</code></a></dt>
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<dd>
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<dt><a name="set_visibility_value"
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><code class="code">set_visibility_value</code></a></dt>
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<dd>
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<dt><a name="set_value_field"
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><code class="code">set_value_field</code></a></dt>
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</dl>
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<h2><a class='u' href='#___top' title='click to go to top of document'
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name="Instance_Method"
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>Instance Method</a></h2>
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<dl>
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<dt><a name="remove_from_db"
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><code class="code">remove_from_db</code></a></dt>
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<dd>
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<p>Attempts to remove the passed in field from the database. Deleting a field is only successful if the field is obsolete and there are no values specified (or EVER specified) for the field.</p>
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</dd>
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</dl>
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<h2><a class='u' href='#___top' title='click to go to top of document'
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name="Class_Methods"
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>Class Methods</a></h2>
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<dl>
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<dt><a name="create"
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><code class="code">create</code></a></dt>
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<dd>
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<p>Just like <a href="../Bugzilla/Object.html#create" class="podlinkpod"
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>"create" in Bugzilla::Object</a>. Takes the following parameters:</p>
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<dl>
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<dt><a name="name_Required_-_The_name_of_the_field."
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><code class="code">name</code> <b>Required</b> - The name of the field.</a></dt>
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<dd>
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<dt><a name="description_Required_-_The_field_label_to_display_in_the_UI."
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><code class="code">description</code> <b>Required</b> - The field label to display in the UI.</a></dt>
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<dd>
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<dt><a name="mailhead_-_boolean_-_Whether_this_field_appears_at_the_top_of_the_bugmail_for_a_newly-filed_bug._Defaults_to_0."
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><code class="code">mailhead</code> - boolean - Whether this field appears at the top of the bugmail for a newly-filed bug. Defaults to 0.</a></dt>
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<dd>
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<dt><a
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><code class="code">custom</code> - boolean - True if this is a Custom Field. The field will be added to the <code class="code">bugs</code> table if it does not exist. Defaults to 0.</a></dt>
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<dd>
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<dt><a name="sortkey_-_integer_-_The_sortkey_of_the_field._Defaults_to_0."
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><code class="code">sortkey</code> - integer - The sortkey of the field. Defaults to 0.</a></dt>
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<dd>
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<dt><a name="enter_bug_-_boolean_-_Whether_this_field_is_editable_on_the_bug_creation_form._Defaults_to_0."
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><code class="code">enter_bug</code> - boolean - Whether this field is editable on the bug creation form. Defaults to 0.</a></dt>
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<dd>
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<dt><a name="buglist_-_boolean_-_Whether_this_field_is_selectable_as_a_display_or_order_column_in_bug_lists._Defaults_to_0."
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><code class="code">buglist</code> - boolean - Whether this field is selectable as a display or order column in bug lists. Defaults to 0.</a></dt>
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<dd>
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<p><code class="code">obsolete</code> - boolean - Whether this field is obsolete. Defaults to 0.</p>
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</dd>
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</dl>
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</dd>
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</dl>
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<dl>
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<dt><a name="get_legal_field_values($field)"
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><code class="code">get_legal_field_values($field)</code></a></dt>
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<dd>
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<p>Description: returns all the legal values for a field that has a list of legal values, like rep_platform or resolution. The table where these values are stored must at least have the following columns: value, isactive, sortkey.</p>
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<p>Params: <code class="code">$field</code> - Name of the table where valid values are.</p>
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<p>Returns: a reference to a list of valid values.</p>
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</dd>
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</dl>
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<dl>
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<dt><a name="populate_field_definitions()"
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><code class="code">populate_field_definitions()</code></a></dt>
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<dd>
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<p>Description: Populates the fielddefs table during an installation or upgrade.</p>
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<p>Params: none</p>
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<p>Returns: nothing</p>
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</dd>
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</dl>
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<h2><a class='u' href='#___top' title='click to go to top of document'
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name="Data_Validation"
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>Data Validation</a></h2>
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<dl>
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<dt><a name="check_field($name,_$value,_\@legal_values,_$no_warn)"
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><code class="code">check_field($name, $value, \@legal_values, $no_warn)</code></a></dt>
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<dd>
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<p>Description: Makes sure the field $name is defined and its $value is non empty. If @legal_values is defined, this routine checks whether its value is one of the legal values associated with this field, else it checks against the default valid values for this field obtained by <code class="code">get_legal_field_values($name)</code>. If the test is successful, the function returns 1. If the test fails, an error is thrown (by default), unless $no_warn is true, in which case the function returns 0.</p>
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<p>Params: $name - the field name $value - the field value @legal_values - (optional) list of legal values $no_warn - (optional) do not throw an error if true</p>
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<p>Returns: 1 on success; 0 on failure if $no_warn is true (else an error is thrown).</p>
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</dd>
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</dl>
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<dl>
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<dt><a name="get_field_id($fieldname)"
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><code class="code">get_field_id($fieldname)</code></a></dt>
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<dd>
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<p>Description: Returns the ID of the specified field name and throws an error if this field does not exist.</p>
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<p>Params: $name - a field name</p>
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<p>Returns: the corresponding field ID or an error if the field name does not exist.</p>
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</dd>
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</dl>
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<p class="backlinkbottom"><b><a name="___bottom" href="../index.html" title="All Documents"><<</a></b></p>
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<!-- end doc -->
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</body></html>
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