Difference between revisions of "Bigint field"
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{{fieldtypes}} | {{fieldtypes}} | ||
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| + | == Description == | ||
| + | This field represents an integer whose value may be too big to store (i.e. greater than 2,147,483,647 or less than -2,147,483.647) in a standard database [[Int field]]. | ||
== Inheritance == | == Inheritance == | ||
| − | |||
* [[Metadata]] | * [[Metadata]] | ||
** [[Int field]] | ** [[Int field]] | ||
*** [[Bigint field]] | *** [[Bigint field]] | ||
| − | == | + | == Additional Properties == |
| − | + | As for [[Int_field#Additional Properties|Int fields]] except for | |
| − | |||
| − | |||
{| border="1" cellpadding="3" cellspacing="0" | {| border="1" cellpadding="3" cellspacing="0" | ||
| − | + | ! Name !! Default Value !! Required !! Description !! Notes | |
|- | |- | ||
| − | | '''digits''' || | + | | '''digits''' || <tt>18</tt> || NO || The maximum number of digits for the big integer value. || Different from [[Int field]] default (<tt>9</tt>). Analogous to <tt>maxlength</tt>. Database <tt>BIGINT(20)</tt> cannot reliably store numbers that takes up more than 18 digits (including a sign if negative). |
|} | |} | ||
== Required Phrases == | == Required Phrases == | ||
| − | No additional phrases. | + | No additional phrases beyond those required for [[Int_field#Required_Phrases|Int fields]]. |
== Database == | == Database == | ||
| − | + | Bigint fields are stored in the database as | |
| − | |||
| − | |||
fieldname BIGINT(20) | fieldname BIGINT(20) | ||
== API == | == API == | ||
| − | + | See [[API:EPrints/MetaField/Bigint|API page]]. | |
== Examples == | == Examples == | ||
Latest revision as of 09:46, 9 July 2024
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
Contents
Description
This field represents an integer whose value may be too big to store (i.e. greater than 2,147,483,647 or less than -2,147,483.647) in a standard database Int field.
Inheritance
Additional Properties
As for Int fields except for
| Name | Default Value | Required | Description | Notes |
|---|---|---|---|---|
| digits | 18 | NO | The maximum number of digits for the big integer value. | Different from Int field default (9). Analogous to maxlength. Database BIGINT(20) cannot reliably store numbers that takes up more than 18 digits (including a sign if negative). |
Required Phrases
No additional phrases beyond those required for Int fields.
Database
Bigint fields are stored in the database as
fieldname BIGINT(20)
API
See API page.
Examples
A basic example.
{
name => 'population',
type => 'bigint',
}
Restrict number of digits can be added to this field in the wokflow.
{
name => 'hesa_id',
type => 'bigint',
digits => 13,
}
