Uuid

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Shape
Example
Good to know
In JSON
Details

A universally unique identifier, in lower case with hyphens.

Use it as an id for records. Jadpo generates version 7 for a new record's id. For a sortable id as shorter text, use Ulid.

Shape

One value, with no fields to fill in. As text it reads 0192f0c4-9a1e-7b3c-8d2e-4f5a6b7c8d9e.

Example

example

Uuid("0192f0c4-9a1e-7b3c-8d2e-4f5a6b7c8d9e")

text.parse(raw, as: Uuid) reads one from text that comes from outside. Text that isn't one at all fails malformed, such as 0192f0c4 or not-a-uuid.

Good to know

It accepts any version. A type built on it can fix one with version:.
== tells you whether two are the same. < and list.sort_by don't take it.

In JSON

A string, in a request, a response or json.write:

json

"0192f0c4-9a1e-7b3c-8d2e-4f5a6b7c8d9e"

Details

Text form, storage, how it is shown, and operations

Uuid is in the group Software, and has been in Jadpo since 0.1.0.

Text form

text.from writes one standard text form, the same form text.parse reads back: 0192f0c4-9a1e-7b3c-8d2e-4f5a6b7c8d9e.

How it is stored

It is stored in one column named for the field, of type uuid. 0192f0c4-9a1e-7b3c-8d2e-4f5a6b7c8d9e is stored as '0192f0c4-9a1e-7b3c-8d2e-4f5a6b7c8d9e'::uuid.

How it is shown to people

text.format(value, locale:) shows it to people in their locale.

With locale: Locale.en_gb:

Value	Shown
`0192f0c4-9a1e-7b3c-8d2e-4f5a6b7c8d9e`	`0192f0c4-9a1e-7b3c-8d2e-4f5a6b7c8d9e`

Operations

It also takes text.parse, text.from, text.format, json.read, json.write and ==. How every standard type behaves says how they work.

Markdown for agents: /docs/types/type-uuid.md.Built from Jadpo main at aee2e8f.