Editing API:EPrints/MetaField (section)

==METHODS==
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===set_property===

<source lang="perl">$field->set_property( $property, $value )

</source>
Set the named property to the given value.

This should not be called on metafields unless they've been cloned first.

This method will cause an abort error if the metafield is read only.

In these cases a cloned version of the field should be used.

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===repository===

<source lang="perl">$repository = $field->repository

</source>
Return the [[API:EPrints/Repository|EPrints::Repository]] to which this field belongs.

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===dataset===

<source lang="perl">$dataset = $field->dataset

</source>
Return the [[API:EPrints/DataSet|EPrints::DataSet]] to which this field belongs, or undef.

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===render_name===

<source lang="perl">$xhtml = $field->render_name

</source>
Render the name of this field as an XHTML object.

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===render_help===

<source lang="perl">$xhtml = $field->render_help

</source>
Return the help information for a user inputing some data for this field as an XHTML chunk.

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===name===

<source lang="perl">$name = $field->name

</source>
Return the name of this field.

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===type===

<source lang="perl">$type = $field->type

</source>
Return the type of this field.

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===property===

<source lang="perl">$value = $field->property( $property )

</source>
Return the value of the given property.

Special note about "required" property: It only indicates if the field is always required. You must query the dataset to check if it is required for a specific type.

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===sort_values===

<source lang="perl">$out_list = $field->sort_values( $in_list, $langid )

</source>
Sorts the in_list into order, based on the "order values" of the  values in the in_list. Assumes that the values are not a list of multiple values. [ [], [], [] ], but rather a list of single values.

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===all_values===

<source lang="perl">$values = $field->all_values( %opts )

</source>
Return a reference to an array of all the values of this field.  For fields like "subject" or "set" it returns all the variations. For fields like "text" return all  the distinct values from the database.

Results are sorted according to the ordervalues of the current session.

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