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

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The date this record first appeared live in the repository.
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The date this record was deposited in the repository.
  
 
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===lastmod (time)===
 
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Revision as of 09:02, 21 March 2011

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 (3.3, 3.2) | Revision Log | Before editing this page please read Pod2Wiki


NAME

EPrints::DataObj::EPrint - Class representing an actual EPrint

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DESCRIPTION

This class represents a single eprint record and the metadata associated with it. This is associated with one of more EPrint::Document objects.

EPrints::DataObj::EPrint is a subclass of EPrints::DataObj with the following metadata fields (plus those defined in ArchiveMetadataFieldsConfig):

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SYSTEM METADATA

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eprintid (int)

The unique numerical ID of this eprint.

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rev_number (int)

The number of the current revision of this record.

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userid (itemref)

The id of the user who deposited this eprint (if any). Scripted importing could cause this not to be set.

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dir (text)

The directory, relative to the documents directory for this repository, which this eprints data is stored in. Eg. disk0/00/00/03/34 for record 334.

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datestamp (time)

The date this record was deposited in the repository.

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lastmod (time)

The date this record was last modified.

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status_changed (time)

The date/time this record was moved between inbox, buffer, archive, etc.

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type (namedset)

The type of this record, one of the types of the "eprint" dataset.

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succeeds (itemref)

The ID of the eprint (if any) which this succeeds. This field should have been an int and may be changed in a later upgrade.

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commentary (itemref)

The ID of the eprint (if any) which this eprint is a commentary on. This field should have been an int and may be changed in a later upgrade.

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replacedby (itemref)

The ID of the eprint (if any) which has replaced this eprint. This is only set on records in the "deletion" dataset. This field should have been an int and may be changed in a later upgrade.

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METHODS

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get_system_field_info

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

Return an array describing the system metadata of the EPrint dataset.

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set_item_issues

$eprint->set_item_issues( $new_issues )

This method updates the issues attached to this eprint based on the new issues passed.

If an existing issue is set as "discovered" and doesn't exist in $new_issues its status will be updated to "autoresolved", otherwise the old issue's status and description are updated.

Any issues in $new_issues that don't already exist will be appended.

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fileinfo

$eprint->fileinfo()

The special fileinfo field contains the icon URL and main-file URL for each non-volatile document in the eprint. This is a performance tweak to avoid having to retrieve documents when rendering eprint citations.

Example:

 /style/images/fileicons/application_pdf.png;/20/1/paper.pdf|/20/4.hassmallThumbnailVersion/tdb_portrait.jpg;/20/4/tdb_portrait.jpg
 

These URLs are relative to the current repository base path ('http_url').

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get_dataset_id

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

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

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get_dataset

$dataset = $eprint->get_dataset

Return the dataset to which this object belongs. This will return one of the virtual datasets: inbox, buffer, archive or deletion.

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get_defaults

$defaults = EPrints::DataObj::EPrint->get_defaults( $session, $data )

Return default values for this object based on the starting data.

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clone

$eprint = $eprint->clone( $dest_dataset, $copy_documents, $link )

Create a copy of this EPrint with a new ID in the given dataset. Return the new eprint, or undef in the case of an error.

If $copy_documents is set and true then the documents (and files) will be copied in addition to the metadata.

If $nolink is true then the new eprint is not connected to the old one.

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log_mail_owner

$eprint->log_mail_owner( $mail )

Log that the given mail message was send to the owner of this EPrint.

$mail is the same XHTML DOM that was sent as the email.

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get_editorial_contact

$user = $eprint->get_editorial_contact

Return the user identified as the editorial contact for this item.

By default returns undef.

nb. This has nothing to do with the editor defined in the metadata

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remove

$success = $eprint->remove

Erase this eprint and any associated records from the database and filesystem.

This should only be called on eprints in "inbox" or "buffer".

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commit

$success = $eprint->commit( [$force] );

Commit any changes that might have been made to the database.

If the item has not be changed then this function does nothing unless $force is true.

Calls /set_eprint_automatic_fields just before the $eprint is committed.

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write_revision

$eprint->write_revision

Write out a snapshot of the XML describing the current state of the eprint.

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validate

$problems = $eprint->validate( [$for_archive], $workflow_id )

Return a reference to an array of XHTML DOM objects describing validation problems with the entire eprint based on $workflow_id.

If $workflow_id is undefined defaults to "default".

A reference to an empty array indicates no problems.

Calls /validate_eprint for the $eprint.

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skip_validation

$boolean = $eprint->skip_validation

Returns true if this eprint should pass validation without being properly validated. This is to allow the use of dodgey data imported from legacy systems.

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prune_documents

$eprint->prune_documents

Remove any documents associated with this eprint which don't actually have any files.

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get_all_documents

@documents = $eprint->get_all_documents

Return an array of all EPrint::Document objects associated with this eprint.

Documents that have a relation of "isVolatileVersionOf" will only be returned if there is no reciprocal document in this EPrint (i.e. orphaned).

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required_formats

@formats =  $eprint->required_formats

Return a list of the required formats for this eprint. Only one of the required formats is required, not all.

An empty list means no format is required.

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move_to_deletion

$success = $eprint->move_to_deletion

Transfer the EPrint into the "deletion" dataset. Should only be called in eprints in the "archive" dataset.

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move_to_inbox

$success = $eprint->move_to_inbox

Transfer the EPrint into the "inbox" dataset. Should only be called in eprints in the "buffer" dataset.

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move_to_buffer

$success = $eprint->move_to_buffer

Transfer the EPrint into the "buffer" dataset. Should only be called in eprints in the "inbox" or "archive" dataset.

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move_to_archive

$success = $eprint->move_to_archive

Move this eprint into the main "archive" dataset. Normally only called on eprints in "deletion" or "buffer" datasets.

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local_path

$path = $eprint->local_path

Return the full path of the EPrint directory on the local filesystem. No trailing slash.

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url_stem

$url = $eprint->url_stem

Return the URL to this EPrint's directory. Note, this INCLUDES the trailing slash, unlike the local_path method.

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generate_static

$eprint->generate_static

Generate the static version of the abstract web page. In a multi-language repository this will generate one version per language.

If called on inbox or buffer, remove the abstract page.

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generate_static_all_related

$eprint->generate_static_all_related

Generate the static pages for this eprint plus any it's related to, by succession or commentary.

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remove_static

$eprint->remove_static

Remove the static web page or pages.

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render

( $description, $title, $links ) = $eprint->render

Render the eprint. The 3 returned values are references to XHTML DOM objects. $description is the public viewable description of this eprint that appears as the body of the abstract page. $title is the title of the abstract page for this eprint. $links is any elements which should go in the <head> of this page.

Calls /eprint_render to actually render the $eprint, if it isn't deleted.

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render_history

( $html ) = $eprint->render_history

Render the history of this eprint as XHTML DOM.

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get_control_url

$url = $eprint->get_control_url

Return the URL of the control page for this eprint.

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get_url

$url = $eprint->get_url

Return the public URL of this eprints abstract page.

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get_user

$user = $eprint->get_user

Return the EPrints::User to whom this eprint belongs (if any).

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get_all_related

@eprints = $eprint->get_all_related

Return the eprints that are related in some way to this in a succession or commentary thread. The returned list does NOT include this EPrint.

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in_thread

$boolean = $eprint->in_thread( $field )

Return true if this eprint is part of a thread of $field. $field should be an EPrint::MetaField representing either "commentary" or "succeeds".

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first_in_thread

$eprint = $eprint->first_in_thread( $field )

Return the first (earliest) version or first paper in the thread of commentaries of this paper in the repository.

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later_in_thread

@eprints = $eprint->later_in_thread( $field )

Return a list of the immediately later items in the thread.

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all_in_thread

@eprints = $eprint->all_in_thread( $field )

Return all of the EPrints in the given thread.

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last_in_thread

$eprint = $eprint->last_in_thread( $field )

Return the last item in the specified thread.

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remove_from_threads

$eprint->remove_from_threads

Extract the eprint from any threads it's in. i.e., if any other paper is a later version of or commentary on this paper, the link from that paper to this will be removed.

Abstract pages are updated if needed.

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render_version_thread

$xhtml = $eprint->render_version_thread( $field )

Render XHTML DOM describing the entire thread as nested unordered lists.

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loop_error

$eprint->loop_error( $field, @looped_ids )

This eprint is part of a threading loop which is not allowed. Log a warning.

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get_type

$type = $eprint->get_type

Return the type of this eprint.

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user_roles

@roles = $eprint->user_roles( $user )

Return the @roles $user has on $eprint.

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datestamp

$eprint->datestamp

DEPRECATED.

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in_editorial_scope_of

$boolean = $eprint->in_editorial_scope_of( $possible_editor )

Returns true if $possible_editor can edit this eprint. This is according to the user editperms.

This does not mean the user has the editor priv., just that if they do then they may edit the given item.

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has_owner

$boolean = $eprint->has_owner( $possible_owner )

Returns true if $possible_owner can edit this eprint. This is according to the user editperms.

This does not mean the user has the editor priv., just that if they do then they may edit the given item.

Uses the callback "does_user_own_eprint" if available.

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obtain_lock

$boolean = $eprint->obtain_lock( $user )

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could_obtain_lock

$boolean = $eprint->could_obtain_lock( $user )

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is_locked

$boolean = $eprint->is_locked()

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render_edit_lock

$xhtml = render_edit_lock( $session, $value )

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CALLBACKS

Callbacks may optionally be defined in the ArchiveConfig.

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validate_field

 validate_field( $field, $value, $session, [$for_archive] )
 

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validate_eprint

 validate_eprint( $eprint, $session, [$for_archive] )
 

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set_eprint_defaults

 set_eprint_defaults( $data, $session )
 

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set_eprint_automatic_fields

 set_eprint_automatic_fields( $eprint )
 

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eprint_render

 eprint_render( $eprint, $session )
 

See ArchiveRenderConfig/eprint_render.

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