Namedset field

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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Metadata Fields: Arclanguage - Base64 - Bigint - Boolean - Compound - Counter - Dataobjref - Date - Decimal - Email - Fields - Float - Id - Idci - Image - Int - Itemref - Keywords - Langid - Longtext - Longtext_counter - Multilang - Multipart - Name - Namedset - Pagerange - Recaptcha - Recaptcha3 - Relation - Search - Secret - Set - Storable - Subject - Subobject - Text - Time - Timestamp - Url - Uuid

Description

This field allow sa choice from a set of options like a Set field. However, here the options can be defined within a namedset file rather than under the options> attribute of the field configuration. This makes it easier to update the available options, potentially programmatically.

This field offers a halfway house between a Set field and a Subject field. Being more easily re-configurable that the former whilst less complex than the latter.

Inheritance

• Metadata
  • Set field
    • Namedset field

Properties

As for set fields with the following differences...

name	default	description
set_name	n/a	Specifies the filename of the namedset file. This property is always required.
options	undef	This property should not be set as will be overridden by the options in the namedset file specified by set_name.

Required Phrases

No additional phrases. However, you may need to add phrases for some of all the values on the namedset file, depending on whether this is a bespoke namedset file. These will take the form:

namedset_filename + "_typename_" + value

For example for lib/namedsets/'s security file, the phrase for staffonly has the ID:

security_typename_staffonly

Database

Namedset fields are stored in the database as

fieldname VARCHAR(255)

API

See API page.

Examples

Most basic example.

{ 
    name => 'archive', 
    type => 'namedset',
    set_name => 'archives',
}

Make field required and only show one input row.

{
    name => 'security', 
    type => 'namedset', 
    required => 1, 
    input_rows => 1,
    set_name=> 'security',
}

Allow multiple values with long input style (i.e. a list of labelled checkboxes). Link rendered values to a browse view listing.

{
    name => 'category', 
    type => 'namedset',
    set_name => 'artwork', 
    multiple => 1, 
    required => 1, 
    input_style => 'long', 
    browse_link => 'category'
}