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 allows a 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
  • Id field
    • Text field
      • Set field
        • Namedset field

Additional Properties

As for Set fields except for:

Name	Default Value	Required	Description	Notes
set_name	n/a	YES	Specifies the filename of the namedset file.
options	undef	NO	Options from which to choose.	NOT inherited from Set field. Options provided by namedset file defined in set_name.

Required Phrases

No additional phrases beyond those required for Set fields. However, you may need to add phrases for some or 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'
}