March 2018
Beginner to intermediate
336 pages
8h 22m
English
Content preview from Odoo 11 Development Essentials - Third 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:
The <field_name> is the field being filtered, and can use dot-notation for fields in related models.
The <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 ...
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