Base64 field

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


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 store Base64 encoded data. This may be useful for storing the binary data of small files (e.g. logos, avatars, etc.).

Inheritance

Additional Properties

As for Longtext fields.

Required Phrases

No additional phrases beyond those required for Longtext fields.

Database

Base64 fields are stored in the database as

 fieldname LONGTEXT

API

See API page.

Examples

Most basic example.

{
   name => 'base64_data',
   type => 'base64',
}

Limit the maximum size of file data that can submitted to 2 MiB.

{
   name => 'file_data',
   type => 'base64',
   maxlength => '2097152',
}

Displayed <textarea> should have a height of five rows for entering this metadata.

{
   name => 'code',
   type => 'base64',
   input_rows=> '5',
}