C///

\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5�\D6?\BD�\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2� \00$\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4�\E9\F2�\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// from sqlalchemy import schema as sa_schema from sqlalchemy.types import NULLTYPE, Integer from ..util.compat import string_types from .. import util class SchemaObjects(object): def __init__(self, migration_context=None): self.migration_context = migration_context def primary_key_constraint(self, name, table_name, cols, schema=None): m = self.metadata() columns = [sa_schema.Column(n, NULLTYPE) for n in cols] t = sa_schema.Table( table_name, m, *columns, schema=schema) p = sa_schema.PrimaryKeyConstraint( *[t.c[n] for n in cols], name=name) t.append_constraint(p) return p def foreign_key_constraint( self, name, source, referent, local_cols, remote_cols, onupdate=None, ondelete=None, deferrable=None, source_schema=None, referent_schema=None, initially=None, match=None, **dialect_kw): m = self.metadata() if source == referent: t1_cols = local_cols + remote_cols else: t1_cols = local_cols sa_schema.Table( referent, m, *[sa_schema.Column(n, NULLTYPE) for n in remote_cols], schema=referent_schema) t1 = sa_schema.Table( source, m, *[sa_schema.Column(n, NULLTYPE) for n in t1_cols], schema=source_schema) tname = "%s.%s" % (referent_schema, referent) if referent_schema \ else referent if util.sqla_08: # "match" kw unsupported in 0.7 dialect_kw['match'] = match f = sa_schema.ForeignKeyConstraint(local_cols, ["%s.%s" % (tname, n) for n in remote_cols], name=name, onupdate=onupdate, ondelete=ondelete, deferrable=deferrable, initially=initially, **dialect_kw ) t1.append_constraint(f) return f def unique_constraint(self, name, source, local_cols, schema=None, **kw): t = sa_schema.Table( source, self.metadata(), *[sa_schema.Column(n, NULLTYPE) for n in local_cols], schema=schema) kw['name'] = name uq = sa_schema.UniqueConstraint(*[t.c[n] for n in local_cols], **kw) # TODO: need event tests to ensure the event # is fired off here t.append_constraint(uq) return uq def check_constraint(self, name, source, condition, schema=None, **kw): t = sa_schema.Table(source, self.metadata(), sa_schema.Column('x', Integer), schema=schema) ck = sa_schema.CheckConstraint(condition, name=name, **kw) t.append_constraint(ck) return ck def generic_constraint(self, name, table_name, type_, schema=None, **kw): t = self.table(table_name, schema=schema) types = { 'foreignkey': lambda name: sa_schema.ForeignKeyConstraint( [], [], name=name), 'primary': sa_schema.PrimaryKeyConstraint, 'unique': sa_schema.UniqueConstraint, 'check': lambda name: sa_schema.CheckConstraint("", name=name), None: sa_schema.Constraint } try: const = types[type_] except KeyError: raise TypeError("'type' can be one of %s" % ", ".join(sorted(repr(x) for x in types))) else: const = const(name=name) t.append_constraint(const) return const def metadata(self): kw = {} if self.migration_context is not None and \ 'target_metadata' in self.migration_context.opts: mt = self.m