Difference between revisions of "API:EPrints/DataObj/EPM"

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<!-- Pod2Wiki=_preamble_  
 
<!-- Pod2Wiki=_preamble_  
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This page has been automatically generated from the EPrints 3.2 source. Any wiki changes made between the 'Pod2Wiki=*' and 'Edit below this comment' comments will be lost.
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This page has been automatically generated from the EPrints 3.4 source. Any wiki changes made between the 'Pod2Wiki=*' and 'Edit below this comment' comments will be lost.
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  -->{{API}}{{Pod2Wiki}}{{API:Source|file=perl_lib/EPrints/DataObj/EPM.pm|package_name=EPrints::DataObj::EPM}}[[Category:API|EPM]][[Category:API:EPrints/DataObj|EPM]][[Category:API:EPrints/DataObj/EPM|EPM]]<div><!-- Edit below this comment -->
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  -->{{API}}{{Pod2Wiki}}{{API:Source|file=EPrints/DataObj/EPM.pm|package_name=EPrints::DataObj::EPM}}[[Category:API|EPM]][[Category:API:EPrints/DataObj|EPM]]<div><!-- Edit below this comment -->
  
  
 
<!-- Pod2Wiki=_private_ --><!-- Pod2Wiki=head_name -->
 
<!-- Pod2Wiki=_private_ --><!-- Pod2Wiki=head_name -->
 
==NAME==
 
==NAME==
−
'''EPrints::DataObj::EPM''' - Class representing an EPrints Package
+
'''EPrints::DataObj::EPM''' - An EPrints Package Manager (EPM) package.
  
 
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<!-- Pod2Wiki=head_description -->
 
<!-- Pod2Wiki=head_description -->
 
==DESCRIPTION==
 
==DESCRIPTION==
 +
This class represents an EPrint Package Manager (EPM) package that  can be stored in XML format as a .epm file or are hosted on EPM  repositories such as http://bazaar.eprints.org.
 +
 +
The EPM data object is now hosted in the bazaar ingredient found at:
 +
 +
ingredients/bazaar/plugins/EPrints/DataObj/EPM.pm
 +
 
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<span style='display:none'>User Comments</span>
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<!-- Pod2Wiki= -->
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</div>
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<!-- Pod2Wiki=head_core_metadata_fields -->
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==CORE METADATA FIELDS==
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<!-- Pod2Wiki= -->
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</div>
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<!-- Pod2Wiki=item_epmid -->
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===epmid (id)===
 +
 +
The text ID of the EPM package
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<!-- Pod2Wiki= -->
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</div>
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<!-- Pod2Wiki=item_eprintid -->
 +
===eprintid (int)===
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 +
The ID number of the EPrint record from the EPM repository.
 +
 +
E.g. http://bazaar.eprints.org/.
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<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
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<!-- Pod2Wiki= -->
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</div>
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<!-- Pod2Wiki=item_uri -->
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===uri (url)===
 +
 +
The URI of the EPM package from the EPM repository it is hosted.
 +
 +
E.g. http://bazaar.eprints.org/id/epm/reports
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<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
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<span style='display:none'>User Comments</span>
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<!-- Edit below this comment -->
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<!-- Pod2Wiki= -->
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</div>
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<!-- Pod2Wiki=item_version -->
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===version (text)===
 +
 +
The version (e.g. 1.0.0) of the EPM package.
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</div>
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<!-- Pod2Wiki=item_controller -->
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===controller (text)===
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</div>
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<!-- Pod2Wiki=item_creators -->
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===creators (compound, multiple)===
 +
 +
Creators of the EPM package including both their full name and email  address.
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<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
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<span style='display:none'>User Comments</span>
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</div>
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<!-- Pod2Wiki=item_datestamp -->
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===datestamp (time)===
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 +
The date and time this version of this EPM package was published.
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<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
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<span style='display:none'>User Comments</span>
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<!-- Edit below this comment -->
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<!-- Pod2Wiki= -->
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</div>
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<!-- Pod2Wiki=item_title -->
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===title (longtext)===
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The title of this EPM package.
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<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
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<span style='display:none'>User Comments</span>
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<!-- Edit below this comment -->
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<!-- Pod2Wiki= -->
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</div>
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<!-- Pod2Wiki=item_description -->
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===description (longtext)===
 +
 +
The description of this EPM package and its purpose.
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</div>
 
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==SYSTEM METADATA==
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===requirements (longtext)===
 +
 
 +
A description of the requirements for this EPM package.
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<!-- Pod2Wiki=item_home_page -->
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===home_page (url)===
 +
 
 +
A URL for the home page of the EPM package. Maybe a page including  documentation on how to use the EPM package.
 +
 
 +
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<span style='display:none'>User Comments</span>
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<!-- Edit below this comment -->
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<!-- Pod2Wiki= -->
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</div>
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<!-- Pod2Wiki=item_icon -->
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===icon (url)===
 +
 
 +
A URL for the icon for the EPM package.
 +
 
 +
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<!-- Edit below this comment -->
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</div>
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<!-- Pod2Wiki=head_references_and_related_objects -->
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==REFERENCES AND RELATED OBJECTS==
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<!-- Edit below this comment -->
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</div>
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<!-- Pod2Wiki=item_documents -->
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===documents (subobject, multiple)===
 +
 
 +
The documents for this EPM package. Effectively a manifest of files required to install the EPM om a repository.
 +
 
 +
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<!-- Edit below this comment -->
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</div>
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<!-- Pod2Wiki=head_instance_variables -->
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==INSTANCE VARIABLES==
 +
See [[API:EPrints/DataObj#INSTANCE_VARIABLES|EPrints::DataObj]].
 +
 
 
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<!-- Pod2Wiki=head_methods -->
 
<!-- Pod2Wiki=head_methods -->
 
==METHODS==
 
==METHODS==
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<!-- Pod2Wiki=head_constructor_methods -->
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===Constructor Methods===
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</div>
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<!-- Pod2Wiki=item_new -->
 +
====new====
 +
 +
$epm = EPrints::DataObj::EPM-&gt;new( $repo, $id )
 +
Returns a new object representing the installed EPM package <tt>$id</tt>.
 +
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<!-- Pod2Wiki=item_new_from_data -->
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====new_from_data====
 +
 +
$epm = EPrints::DataObj::EPM-&gt;new_from_data( $repo, $epdata, $dataset )
 +
Returns a new object representing the EPM package based on the  <tt>$epdata</tt> and <tt>$dataset</tt>.
 +
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<!-- Edit below this comment -->
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<!-- Pod2Wiki=item_new_from_data -->
 +
====new_from_data====
 +
 +
$epm = EPrints::DataObj::EPM-&gt;new_from_data( $repo, $xml )
 +
Returns a new object representing the EPM package based on the  <tt>$xml</tt> provided.
 +
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<!-- Edit below this comment -->
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<!-- Pod2Wiki=item_new_from_data -->
 +
====new_from_data====
 +
 +
$epm = EPrints::DataObj::EPM-&gt;new_from_data( $repo, $fh )
 +
Returns a new object representing the EPM package based on the XML  from the file handle <tt>$fh</tt> provided.
 +
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<!-- Edit below this comment -->
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</div>
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<!-- Pod2Wiki=item_new_from_manifest -->
 +
====new_from_manifest====
 +
 +
$epm = EPrint::DataObj::EPM-&gt;new_from_manifest( $repo, $epdata, [ @manifest ] )
 +
Makes and returns a new EPM object based on the <tt>$epdata</tt> and a  manifest of installable files.
 +
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<!-- Pod2Wiki=head_class_methods -->
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===Class Methods===
 
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</div>
 
</div>
 
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−
===get_system_field_info===
+
====get_system_field_info====
  
 
  $metadata = EPrints::DataObj::EPM-&gt;get_system_field_info
 
  $metadata = EPrints::DataObj::EPM-&gt;get_system_field_info
−
Return an array describing the system metadata of the EPrint dataset.
+
Returns an array describing the system metadata of the epm dataset.
  
 
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<!-- Pod2Wiki=item_map -->
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<!-- Pod2Wiki=item_get_dataset_id -->
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===map===
+
====get_dataset_id====
 +
 
 +
$dataset = EPrints::DataObj::EPM-&gt;get_dataset_id
 +
Returns the ID of the [[API:EPrints/DataSet|EPrints::DataSet]] object to which this record belongs.
 +
 
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<!-- Edit below this comment -->
  
−
EPrints::DataObj::EPM-&gt;map( $repo, sub { ... }, $ctx )
 
−
Apply a function over all installed EPMs.
 
  
−
  sub {
+
<!-- Pod2Wiki= -->
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    my( $repo, $dataset, $epm [, $ctx ] ) = @_;
+
</div>
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  }
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<!-- Pod2Wiki=item_render_controller -->
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+
====render_controller====
−
This loads the EPM index files only.
+
 
 +
$xhtml = EPrints::DataObj::EPM::render_controller( $repo, $field, $value, under, undef, $epm )
 +
Returns and XHTML DOM object rendering for the action link of the EPM using the screen plugin with name supplied by <tt>$value</tt>.
  
 
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</div>
 
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<!-- Pod2Wiki=item_new -->
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<!-- Pod2Wiki=item_render_icon -->
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===new===
+
====render_icon====
  
−
  $epm = EPrints::DataObj::EPM-&gt;new( $repo, $id )
+
  $xhtml = EPrints::DataObj::EPM::render_icon( $repo, $field, $value, under, undef, $epm )
−
Returns a new object representing the installed package $id.
+
Returns and XHTML DOM object rendering for the icon of the EPM using  the image with the filename supplied by <tt>$value</tt>.
  
 
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</div>
 
</div>
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<!-- Pod2Wiki=item_map -->
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===new_from_manifest===
+
====map====
 +
 
 +
EPrints::DataObj::EPM-&gt;map( $repo, $f, $ctx )
 +
Apply a function <tt>$f</tt> over all installed EPMs with and only context <tt>$ctx</tt>, which is not currently implemented.
 +
 
 +
  sub {
 +
    my( $repo, $dataset, $epm, [ $ctx ] ) = @_;
 +
  }
 +
 
 +
This loads the EPM index files only.
 +
 
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<!-- Edit below this comment -->
  
−
$epm = EPrint::DataObj::EPM-&gt;new_from_manifest( $repo, $epdata [, @manifest ] )
 
−
Makes and returns a new EPM object based on a manifest of installable files.
 
  
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<!-- Pod2Wiki=head_object_methods -->
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===Object Methods===
 
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</div>
 
</div>
 
<!-- Pod2Wiki=item_commit -->
 
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===commit===
+
====commit====
  
 
  $epm-&gt;commit
 
  $epm-&gt;commit
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</div>
 
</div>
 
<!-- Pod2Wiki=item_rebuild -->
 
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===rebuild===
+
====rebuild====
  
 
  $epm-&gt;rebuild
 
  $epm-&gt;rebuild
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</div>
 
</div>
 
<!-- Pod2Wiki=item_version -->
 
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===version===
+
====version====
  
 
  $v = $epm-&gt;version
 
  $v = $epm-&gt;version
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</div>
 
</div>
 
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<!-- Pod2Wiki=item_is_enabled -->
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===is_enabled===
+
====is_enabled====
  
 
  $bool = $epm-&gt;is_enabled
 
  $bool = $epm-&gt;is_enabled
−
Returns true if the $epm is enabled for the current repository.
+
Returns <tt>true</tt> if the EPM is enabled for the current repository.
  
 
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===repositories===
+
====repositories====
  
 
  @repoids = $epm-&gt;repositories
 
  @repoids = $epm-&gt;repositories
−
Returns a list of repository ids this $epm is enabled in.
+
Returns a list of repository IDs in which this EPM is enabled.
  
 
<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
 
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</div>
 
</div>
 
<!-- Pod2Wiki=item_package_filename -->
 
<!-- Pod2Wiki=item_package_filename -->
−
===package_filename===
+
====package_filename====
  
−
  $filename = $epm-&gt;package_filename()
+
  $filename = $epm-&gt;package_filename
 
Returns the complete package filename.
 
Returns the complete package filename.
  
Line 179: Line 468:
 
</div>
 
</div>
 
<!-- Pod2Wiki=item_epm_dir -->
 
<!-- Pod2Wiki=item_epm_dir -->
−
===epm_dir===
+
====epm_dir====
  
 
  $dir = $epm-&gt;epm_dir
 
  $dir = $epm-&gt;epm_dir
−
Path to the epm directory for this $epm.
+
Path to the epm directory for this EPM.
  
 
<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
 
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</div>
 
</div>
 
<!-- Pod2Wiki=item_installed_files -->
 
<!-- Pod2Wiki=item_installed_files -->
−
===installed_files===
+
====installed_files====
  
−
  @files = $epm-&gt;installed_files()
+
  @files = $epm-&gt;installed_files
 
Returns a list of installed files as [[API:EPrints/DataObj/File|EPrints::DataObj::File]].
 
Returns a list of installed files as [[API:EPrints/DataObj/File|EPrints::DataObj::File]].
  
Line 205: Line 494:
 
</div>
 
</div>
 
<!-- Pod2Wiki=item_repository_files -->
 
<!-- Pod2Wiki=item_repository_files -->
−
===repository_files===
+
====repository_files====
  
−
  @files = $epm-&gt;repository_files()
+
  @files = $epm-&gt;repository_files
−
Returns the list of configuration files used to enable/configure an $epm.
+
Returns the list of configuration files used to enable/configure this EPM.
  
 
<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
 
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</div>
 
</div>
 
<!-- Pod2Wiki=item_control_screen -->
 
<!-- Pod2Wiki=item_control_screen -->
−
===control_screen===
+
====control_screen====
  
 
  $screen = $epm-&gt;control_screen( %params )
 
  $screen = $epm-&gt;control_screen( %params )
−
Returns the control screen for this $epm. %params are passed to the plugin constructor.
+
Returns the control screen for this EPM. <tt>%params</tt> are passed to the plugin constructor.
  
 
<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
 
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</div>
 
</div>
 
<!-- Pod2Wiki=item_serialise -->
 
<!-- Pod2Wiki=item_serialise -->
−
===serialise===
+
====serialise====
  
−
  $epm-&gt;serialise( $fh, [ FILES ] )
+
  $epm-&gt;serialise( $fh, [ $files ] )
−
Serialises this EPM to the open file handle $fh. If FILES is true file contents are included.
+
Serialises this EPM to the open file handle <tt>$fh</tt>. If <tt>$files</tt> is true file contents are included.
 +
 
 +
<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
 +
<span style='display:none'>User Comments</span>
 +
<!-- Edit below this comment -->
 +
 
 +
 
 +
<!-- Pod2Wiki= -->
 +
</div>
 +
<!-- Pod2Wiki=item_url_stem -->
 +
====url_stem====
 +
 
 +
$url_stem = $epm-&gt;url_stem
 +
Returns the URL stem for this EPM. Always just an empty string.
 +
 
 +
<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
 +
<span style='display:none'>User Comments</span>
 +
<!-- Edit below this comment -->
 +
 
 +
 
 +
<!-- Pod2Wiki= -->
 +
</div>
 +
<!-- Pod2Wiki=item_html_phrase -->
 +
====html_phrase====
 +
 
 +
$xhtml_phrase = $epm-&gt;html_phrase( $phraseid, [ @pins ] )
 +
Returns and XHTML DOM oject of the HTML phrase for and EPM with the <tt>$phraseid</tt> using the <tt>@pins</tt> provided if required.
  
 
<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
 
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</div>
 
</div>
 
<!-- Pod2Wiki=item_install -->
 
<!-- Pod2Wiki=item_install -->
−
===install===
+
====install====
  
−
  $ok = $epm-&gt;install( HANDLER [, FORCE ] )
+
  $ok = $epm-&gt;install( $handler, [ $force ] )
−
Install the EPM into the system. HANDLER is a [[API:EPrints/CLIProcessor|EPrints::CLIProcessor]] or [[API:EPrints/ScreenProcessor|EPrints::ScreenProcessor]], used for reporting errors.
+
Install the EPM into the system. <tt>$handler</tt> is a [[API:EPrints/CLIProcessor|EPrints::CLIProcessor]] or [[API:EPrints/ScreenProcessor|EPrints::ScreenProcessor]], used for reporting errors. 
 +
 
 +
<tt>$force</tt> ignores checking the hashes of the files to make sure they  have not been changed.
 +
 
 +
Returns boolean dependent on whether install was successful.
  
 
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</div>
 
</div>
 
<!-- Pod2Wiki=item_uninstall -->
 
<!-- Pod2Wiki=item_uninstall -->
−
===uninstall===
+
====uninstall====
 +
 
 +
$ok = $epm-&gt;uninstall( $handler, [ $force ] )
 +
Remove the EPM from the system. <tt>$handler</tt> is a  [[API:EPrints/CLIProcessor|EPrints::CLIProcessor]] or [[API:EPrints/ScreenProcessor|EPrints::ScreenProcessor]], used for  reporting errors.
 +
 
 +
<tt>$force</tt> ignores checking the hashes of the files to make sure they have not been changed.
  
−
$ok = $epm-&gt;uninstall( HANDLER [, FORCE ] )
+
Returns boolean dependent on whether uninstall was successful.
−
Remove the EPM from the system. HANDLER is a [[API:EPrints/CLIProcessor|EPrints::CLIProcessor]] or [[API:EPrints/ScreenProcessor|EPrints::ScreenProcessor]], used for reporting errors.
 
  
 
<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
 
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</div>
 
</div>
 
<!-- Pod2Wiki=item_disable_unchanged -->
 
<!-- Pod2Wiki=item_disable_unchanged -->
−
===disable_unchanged===
+
====disable_unchanged====
 +
 
 +
$ok = $epm-&gt;disable_unchanged
 +
Remove unchanged files from the repository directory. This allows a  new version of the EPM to be installed/enabled.
  
−
  $ok = $epm-&gt;disable_unchanged()
+
Returns boolean dependent on whether disabling unchanged was successful.
−
Remove unchanged files from the repository directory. This allows a new version of the EPM to be installed/enabled.
 
  
 
<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
 
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</div>
 
</div>
 
<!-- Pod2Wiki=item_enable -->
 
<!-- Pod2Wiki=item_enable -->
−
===enable===
+
====enable====
  
 
  $ok = $epm-&gt;enable( $handler )
 
  $ok = $epm-&gt;enable( $handler )
−
Enables the $epm for the current repository.
+
Enables the EPM for the current repository using <tt>$handler</tt> to manage messaging for the enabling process.
 +
 
 +
Returns boolean dependent on whether enabling was successful.
  
 
<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
 
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<!-- Pod2Wiki= -->
 
<!-- Pod2Wiki= -->
 
</div>
 
</div>
−
<!-- Pod2Wiki=head_utility_methods -->
+
<!-- Pod2Wiki=item_enable -->
−
===Utility Methods===
+
====enable====
 +
 
 +
$ok = $epm-&gt;enable( $handler )
 +
Enables the EPM for the current repository using <tt>$handler</tt> to manage messaging for the disabling process.
 +
 
 +
Returns boolean dependent on whether disabling was successful.
 +
 
 
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<span style='display:none'>User Comments</span>
 
<span style='display:none'>User Comments</span>
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====current_counters====
 
====current_counters====
  
−
  $conf = $epm-&gt;current_counters()
+
  $conf = $epm-&gt;current_counters
 +
Get SQL counters for current data objects.
 +
 
 
<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
 
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<span style='display:none'>User Comments</span>
 
<span style='display:none'>User Comments</span>
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====current_datasets====
 
====current_datasets====
  
−
  $conf = $epm-&gt;current_datasets()
+
  $conf = $epm-&gt;current_datasets
 +
Get dataset for current data objects.
 +
 
 
<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
 
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<span style='display:none'>User Comments</span>
 
<span style='display:none'>User Comments</span>
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====update_counters====
 
====update_counters====
  
−
  $ok = $epm-&gt;update_counters( $conf )
+
  $ok = $epm-&gt;update_counters( $before )
 +
Update the SQL counters. Removing any counters listed in <tt>$before</tt>  that are not used any more. (<tt>$before</tt> should be retrieved before  enabling by using [[API:EPrints/DataObj/EPM#current_counters|current_counters]].)
 +
 
 
<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
 
<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
 
<span style='display:none'>User Comments</span>
 
<span style='display:none'>User Comments</span>
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====update_datasets====
 
====update_datasets====
  
−
  $ok = $epm-&gt;update_datasets( $conf )
+
  $ok = $epm-&gt;update_datasets( $before )
−
Update the datasets following any configuration changes made by the extension on being enabled. $conf should be retrieved before enabling by using [[API:EPrints/DataObj/EPM#current_datasets|current_datasets]].
+
Update the datasets following any configuration changes made by the extension on being enabled. Removing any datasets listed in <tt>$before</tt> that are not used any more. <tt>$before</tt> should be retrieved before enabling by using [[API:EPrints/DataObj/EPM#current_datasets|current_datasets]].
  
 
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====publish====
 
====publish====
  
−
  $ok = $epm-&gt;publish( $handler, $base_url, %opts )
+
  $ok = $epm-&gt;publish( $handler, $url, %opts )
−
Publish this EPM to a remote system using SWORD.
+
Publish this EPM to a remote system using SWORD, using <tt>$handler</tt> to  manage messaging for the publishing process.
  
−
$base_url is the URL of the SWORD endpoint or a page containing a SWORD &lt;link&gt;.
+
<tt>$url</tt> is the URL of the SWORD endpoint or a page containing a SWORD link.
  
 
Options:
 
Options:
  
−
  username - username for Basic auth
+
username - username for Basic auth
−
  password - password for Basic auth
+
password - password for Basic auth
 
    
 
    
 +
Returns a boolean dependent on whether the publishing was successful.
 +
 +
<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
 +
<span style='display:none'>User Comments</span>
 +
<!-- Edit below this comment -->
 +
 +
 +
<!-- Pod2Wiki= -->
 +
</div>
 +
<!-- Pod2Wiki=item_is_set -->
 +
====is_set====
 +
 +
$ok = $epm-&gt;is_set( $fieldid )
 +
Returns a boolean dependent on whether a value is set for the field  with <tt>$fieldid</tt> for this EPM.
 +
 +
<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
 +
<span style='display:none'>User Comments</span>
 +
<!-- Edit below this comment -->
 +
 +
 +
<!-- Pod2Wiki= -->
 +
</div>
 +
<!-- Pod2Wiki=head_utility_methods -->
 +
===Utility Methods===
 +
<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
 +
<span style='display:none'>User Comments</span>
 +
<!-- Edit below this comment -->
 +
 +
 +
<!-- Pod2Wiki= -->
 +
</div>
 +
<!-- Pod2Wiki=item_render_controller -->
 +
====render_controller====
 +
 +
$xhtml = EPrints::DataObj::EPM::render_controller( $repo, $field, $value, under, undef, $epm )
 +
Returns and XHTML DOM object rendering for the action link of the EPM using the screen plugin with name supplied by <tt>$value</tt>.
 +
 +
<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
 +
<span style='display:none'>User Comments</span>
 +
<!-- Edit below this comment -->
 +
 +
 +
<!-- Pod2Wiki= -->
 +
</div>
 +
<!-- Pod2Wiki=item_render_icon -->
 +
====render_icon====
 +
 +
$xhtml = EPrints::DataObj::EPM::render_icon( $repo, $field, $value, under, undef, $epm )
 +
Returns and XHTML DOM object rendering for the icon of the EPM using the image with the filename supplied by <tt>$value</tt>.
 +
 +
<div style='background-color: #e8e8f; margin: 0.5em 0em 1em 0em; border: solid 1px #cce;  padding: 0em 1em 0em 1em; font-size: 80%; '>
 +
<span style='display:none'>User Comments</span>
 +
<!-- Edit below this comment -->
 +
 +
 +
<!-- Pod2Wiki= -->
 +
</div>
 +
<!-- Pod2Wiki=head_see_also -->
 +
==SEE ALSO==
 +
[[API:EPrints/DataObj|EPrints::DataObj]] and [[API:EPrints/DataSet|EPrints::DataSet]]
 +
 
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<!-- Pod2Wiki=head_copyright -->
 
<!-- Pod2Wiki=head_copyright -->
 
==COPYRIGHT==
 
==COPYRIGHT==
 +
{{API:Copyright}}
 
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<span style='display:none'>User Comments</span>

Latest revision as of 01:46, 11 January 2022

EPrints 3 Reference: Directory Structure - Metadata Fields - Repository Configuration - XML Config Files - XML Export Format - EPrints data structure - Core API - Data Objects

API: Core API

Latest Source Code (3.4, 3.3) | Revision Log | Before editing this page please read Pod2Wiki


NAME

EPrints::DataObj::EPM - An EPrints Package Manager (EPM) package.

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DESCRIPTION

This class represents an EPrint Package Manager (EPM) package that can be stored in XML format as a .epm file or are hosted on EPM repositories such as http://bazaar.eprints.org.

The EPM data object is now hosted in the bazaar ingredient found at: 

ingredients/bazaar/plugins/EPrints/DataObj/EPM.pm

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CORE METADATA FIELDS

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epmid (id)

The text ID of the EPM package

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eprintid (int)

The ID number of the EPrint record from the EPM repository.

E.g. http://bazaar.eprints.org/.

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uri (url)

The URI of the EPM package from the EPM repository it is hosted.

E.g. http://bazaar.eprints.org/id/epm/reports

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version (text)

The version (e.g. 1.0.0) of the EPM package.

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controller (text)

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creators (compound, multiple)

Creators of the EPM package including both their full name and email address.

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datestamp (time)

The date and time this version of this EPM package was published.

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title (longtext)

The title of this EPM package.

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description (longtext)

The description of this EPM package and its purpose.

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requirements (longtext)

A description of the requirements for this EPM package.

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home_page (url)

A URL for the home page of the EPM package. Maybe a page including documentation on how to use the EPM package.

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icon (url)

A URL for the icon for the EPM package.

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REFERENCES AND RELATED OBJECTS

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documents (subobject, multiple)

The documents for this EPM package. Effectively a manifest of files required to install the EPM om a repository.

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INSTANCE VARIABLES

See EPrints::DataObj.

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METHODS

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Constructor Methods

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new

$epm = EPrints::DataObj::EPM->new( $repo, $id )

Returns a new object representing the installed EPM package $id.

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new_from_data

$epm = EPrints::DataObj::EPM->new_from_data( $repo, $epdata, $dataset )

Returns a new object representing the EPM package based on the $epdata and $dataset.

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new_from_data

$epm = EPrints::DataObj::EPM->new_from_data( $repo, $xml )

Returns a new object representing the EPM package based on the $xml provided.

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new_from_data

$epm = EPrints::DataObj::EPM->new_from_data( $repo, $fh )

Returns a new object representing the EPM package based on the XML from the file handle $fh provided.

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new_from_manifest

$epm = EPrint::DataObj::EPM->new_from_manifest( $repo, $epdata, [ @manifest ] )

Makes and returns a new EPM object based on the $epdata and a manifest of installable files.

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Class Methods

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get_system_field_info

$metadata = EPrints::DataObj::EPM->get_system_field_info

Returns an array describing the system metadata of the epm dataset.

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get_dataset_id

$dataset = EPrints::DataObj::EPM->get_dataset_id

Returns the ID of the EPrints::DataSet object to which this record belongs.

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render_controller

$xhtml = EPrints::DataObj::EPM::render_controller( $repo, $field, $value, under, undef, $epm )

Returns and XHTML DOM object rendering for the action link of the EPM using the screen plugin with name supplied by $value.

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render_icon

$xhtml = EPrints::DataObj::EPM::render_icon( $repo, $field, $value, under, undef, $epm )

Returns and XHTML DOM object rendering for the icon of the EPM using the image with the filename supplied by $value.

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map

EPrints::DataObj::EPM->map( $repo, $f, $ctx )

Apply a function $f over all installed EPMs with and only context $ctx, which is not currently implemented. 

 sub {
   my( $repo, $dataset, $epm, [ $ctx ] ) = @_;
 }

This loads the EPM index files only.

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Object Methods

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commit

$epm->commit

Commit any changes to the installed .epm, .epmi files.

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rebuild

$epm->rebuild

Reload all of the installed files (regenerating hashes if necessary).

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version

$v = $epm->version

Returns a stringified version suitable for string gt/lt matching.

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is_enabled

$bool = $epm->is_enabled

Returns true if the EPM is enabled for the current repository.

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repositories

@repoids = $epm->repositories

Returns a list of repository IDs in which this EPM is enabled.

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package_filename

$filename = $epm->package_filename

Returns the complete package filename.

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epm_dir

$dir = $epm->epm_dir

Path to the epm directory for this EPM.

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installed_files

@files = $epm->installed_files

Returns a list of installed files as EPrints::DataObj::File.

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repository_files

@files = $epm->repository_files

Returns the list of configuration files used to enable/configure this EPM.

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control_screen

$screen = $epm->control_screen( %params )

Returns the control screen for this EPM. %params are passed to the plugin constructor.

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serialise

$epm->serialise( $fh, [ $files ] )

Serialises this EPM to the open file handle $fh. If $files is true file contents are included.

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url_stem

$url_stem = $epm->url_stem

Returns the URL stem for this EPM. Always just an empty string.

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html_phrase

$xhtml_phrase = $epm->html_phrase( $phraseid, [ @pins ] )

Returns and XHTML DOM oject of the HTML phrase for and EPM with the $phraseid using the @pins provided if required.

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install

$ok = $epm->install( $handler, [ $force ] )

Install the EPM into the system. $handler is a EPrints::CLIProcessor or EPrints::ScreenProcessor, used for reporting errors.

$force ignores checking the hashes of the files to make sure they have not been changed.

Returns boolean dependent on whether install was successful.

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uninstall

$ok = $epm->uninstall( $handler, [ $force ] )

Remove the EPM from the system. $handler is a EPrints::CLIProcessor or EPrints::ScreenProcessor, used for reporting errors.

$force ignores checking the hashes of the files to make sure they have not been changed.

Returns boolean dependent on whether uninstall was successful.

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disable_unchanged

$ok = $epm->disable_unchanged

Remove unchanged files from the repository directory. This allows a new version of the EPM to be installed/enabled.

Returns boolean dependent on whether disabling unchanged was successful.

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enable

$ok = $epm->enable( $handler )

Enables the EPM for the current repository using $handler to manage messaging for the enabling process.

Returns boolean dependent on whether enabling was successful.

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enable

$ok = $epm->enable( $handler )

Enables the EPM for the current repository using $handler to manage messaging for the disabling process.

Returns boolean dependent on whether disabling was successful.

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current_counters

$conf = $epm->current_counters

Get SQL counters for current data objects.

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current_datasets

$conf = $epm->current_datasets

Get dataset for current data objects.

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update_counters

$ok = $epm->update_counters( $before )

Update the SQL counters. Removing any counters listed in $before that are not used any more. ($before should be retrieved before enabling by using current_counters.)

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update_datasets

$ok = $epm->update_datasets( $before )

Update the datasets following any configuration changes made by the extension on being enabled. Removing any datasets listed in $before that are not used any more. $before should be retrieved before enabling by using current_datasets.

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publish

$ok = $epm->publish( $handler, $url, %opts )

Publish this EPM to a remote system using SWORD, using $handler to manage messaging for the publishing process.

$url is the URL of the SWORD endpoint or a page containing a SWORD link.

Options: 

username - username for Basic auth
password - password for Basic auth

Returns a boolean dependent on whether the publishing was successful.

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is_set

$ok = $epm->is_set( $fieldid )

Returns a boolean dependent on whether a value is set for the field with $fieldid for this EPM.

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Utility Methods

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render_controller

$xhtml = EPrints::DataObj::EPM::render_controller( $repo, $field, $value, under, undef, $epm )

Returns and XHTML DOM object rendering for the action link of the EPM using the screen plugin with name supplied by $value.

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render_icon

$xhtml = EPrints::DataObj::EPM::render_icon( $repo, $field, $value, under, undef, $epm )

Returns and XHTML DOM object rendering for the icon of the EPM using the image with the filename supplied by $value.

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SEE ALSO

EPrints::DataObj and EPrints::DataSet

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COPYRIGHT

© Copyright 2000-2024 University of Southampton.

EPrints 3.4 is supplied by EPrints Services.

http://www.eprints.org/eprints-3.4/

LICENSE

This file is part of EPrints 3.4 http://www.eprints.org/.

EPrints 3.4 and this file are released under the terms of the GNU Lesser General Public License version 3 as published by the Free Software Foundation unless otherwise stated.

EPrints 3.4 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with EPrints 3.4. If not, see http://www.gnu.org/licenses/.

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