pyre.db.FieldReference

Module Contents

class pyre.db.FieldReference.FieldReference(table, field, **kwds)

Bases: pyre.descriptors.stem.variable

A field decorator that encapsulates references to table fields

This class is endowed with the full algebra from {pyre.algebraic} in order to support expressions involving table fields. Such expressions can be used to formulate constraints or to specify fields in views

table

field

coerce(self, **kwds)

Convert {value} into my type

project(self, table)

Build a reference to the given {table} that points to the same field as i do

sql(self, context=None)

Convert me into an SQL expression