December 2018
Beginner to intermediate
404 pages
10h 14m
English
Content preview from Odoo 12 Development Essentials - Fourth Edition
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Domain expressions
The domain is used to filter data records. They use a specific syntax that the Odoo ORM parses to produce the SQL WHERE expressions that will query the database.
A domain expression is a list of conditions. Each condition is a ('<field_name>', '<operator>', <value>') tuple. For example, this is a valid domain expression, with only one condition: [('is_done','=',False)].
The following is an explanation of each of these elements:
- <field_name> is the field being filtered and can use dot-notation for fields in related models.
- <value> is evaluated as a Python expression. It can use literal values, such as numbers, Booleans, strings, or lists, and can use fields and identifiers available in the evaluation context. There are ...
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