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graflo.filter

Filter expression system for database queries.

This package provides a flexible system for creating and evaluating filter expressions that can be translated into different database query languages (AQL, Cypher, Python).

Key Components
  • LogicalOperator: Logical operations (AND, OR, NOT, IMPLICATION)
  • ComparisonOperator: Comparison operations (==, !=, >, <, etc.)
  • FilterExpression: Filter expression (leaf or composite logical formulae)
Example

from graflo.filter.onto import FilterExpression expr = FilterExpression.from_dict({ ... "AND": [ ... {"field": "age", "cmp_operator": ">=", "value": 18}, ... {"field": "status", "cmp_operator": "==", "value": "active"} ... ] ... })

Converts to: "age >= 18 AND status == 'active'"