Difference between revisions of "Base64 field"

Latest revision as of 14:01, 16 April 2023

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 - Relation - Search - Secret - Set - Storable - Subject - Subobject - Text - Time - Timestamp - Url - Uuid

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

No additional phrases beyond those required for Longtext fields.

Base64 fields are stored in the database as

 fieldname LONGTEXT

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',
}

@@ Line 1: / Line 1: @@
 {{fieldtypes}}
-== Inheritance ==
-* [[:Category:EPrints_Metadata_Fields|Metadata field]]
-** [[Text field]]
-*** [[Longtext field]]
-**** [[Base64 field]]
 == Description ==
-Base64 encoded data.
+This field store Base64 encoded data.  This may be useful for storing the binary data of small files (e.g. logos, avatars, etc.).
-== Properties ==
+== Inheritance ==
+* [[:Category:EPrints_Metadata_Fields|Metadata field]]
-As for [[text field]]s with the following differences...
+** [[Id field]]
+*** [[Text field]]
+**** [[Longtext field]]
+***** [[Base64 field]]
-{| border="1" cellpadding="3" cellspacing="0"
+== Additional Properties ==
-| name || default || description
+As for [[Longtext field#Additional_Properties|Longtext fields]].
-|-
-| '''input_rows''' || n/a || '''This property is taken from the repository configuration.'''
-|-
-| '''maxlength''' || 65535 || '''Can be overridden in the field definition.'''
-|}
 == Required Phrases ==
-No additional phrases.
+No additional phrases beyond those required for [[Longtext field#Required_Phrases|Longtext fields]].
 == Database ==
@@ Line 30: / Line 23: @@
 == API ==
-''To be added''
+See [[API:EPrints/MetaField/Base64|API page]].
 == Examples ==
-A basic example.
+Most basic example.
   {
      name => 'base64_data',