API:EPrints/MetaField/Base64
EPrints 3 Reference: Directory Structure - Metadata Fields - Repository Configuration - XML Config Files - XML Export Format - EPrints data structure - Core API - Data Objects
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NAME[edit]
EPrints::MetaField::Base64 - Base 64 encoded data
DESCRIPTION[edit]
Data encoded in base64. This may be small files (e.g. kilobytes) better save in the database rather than to the filesystem.
INHERITANCE[edit]
EPrints::MetaField EPrints::MetaField::Text EPrints::MetaField::Longtext EPrints::MetaField::Base64
PROPERTIES[edit]
To be written
METHODS[edit]
form_value[edit]
$value = $field->form_value( $session, $object, [$prefix] )
Base64 encode the CGI parameter submitted within the form for this particular field. Assuming the from contained such an input field.
Returns a single scalar or array of base64 encoded values.
to_sax[edit]
$xml = $field->to_sax( $value, %opts )
Print the field and value(s) as an XML representation of a base64 field.
get_xml_schema_type[edit]
$type = $field->get_xml_schema_type
Gets the XML schema type for this base64 field.
Returns a string containing the type, dataset ID and and name of this field (e.g. base64_file_data).
render_xml_schema_type[edit]
$type = $field->render_xml_schema_type
Produces an XML fragment this base64 field.
Returns a DOM for the following:
<xs:complexType name="base64_file_data">
<xs:simpleContent>
<xs:extension base="xs:base64Binary">
<xs:attribute name="encoding">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:enumeration value="base64" />
</xs:restriction>
</xs:simpleType>
</xs:attribute>
</xs:extension>
</xs:simpleContent>
</xs:complexType>
E.g., <data encoding="base64">...</data>
COPYRIGHT[edit]
© Copyright 2000-2024 University of Southampton.
EPrints 3.4 is supplied by EPrints Services.
http://www.eprints.org/eprints-3.4/
LICENSE[edit]
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/.