本文整理匯總了Python中sqlalchemy.sql.compiler.GenericTypeCompiler方法的典型用法代碼示例。如果您正苦於以下問題：Python compiler.GenericTypeCompiler方法的具體用法？Python compiler.GenericTypeCompiler怎麽用？Python compiler.GenericTypeCompiler使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類sqlalchemy.sql.compiler的用法示例。
在下文中一共展示了compiler.GenericTypeCompiler方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: test_kwarg_legacy_typecompiler
# 需要導入模塊: from sqlalchemy.sql import compiler [as 別名]
# 或者: from sqlalchemy.sql.compiler import GenericTypeCompiler [as 別名]
def test_kwarg_legacy_typecompiler(self):
from sqlalchemy.sql import compiler
class SomeTypeCompiler(compiler.GenericTypeCompiler):
# transparently decorated w/ kw decorator
def visit_VARCHAR(self, type_):
return "MYVARCHAR"
# not affected
def visit_INTEGER(self, type_, **kw):
return "MYINTEGER %s" % kw["type_expression"].name
dialect = default.DefaultDialect()
dialect.type_compiler = SomeTypeCompiler(dialect)
self.assert_compile(
ddl.CreateColumn(Column("bar", VARCHAR(50))),
"bar MYVARCHAR",
dialect=dialect,
)
self.assert_compile(
ddl.CreateColumn(Column("bar", INTEGER)),
"bar MYINTEGER bar",
dialect=dialect,
) 示例2: setUp
# 需要導入模塊: from sqlalchemy.sql import compiler [as 別名]
# 或者: from sqlalchemy.sql.compiler import GenericTypeCompiler [as 別名]
def setUp(self):
class MyTypeCompiler(compiler.GenericTypeCompiler):
def visit_mytype(self, type_, **kw):
return "MYTYPE"
def visit_myothertype(self, type_, **kw):
return "MYOTHERTYPE"
class MyCompiler(compiler.SQLCompiler):
def visit_json_getitem_op_binary(self, binary, operator, **kw):
return self._generate_generic_binary(
binary, " -> ", eager_grouping=True, **kw
)
def visit_json_path_getitem_op_binary(
self, binary, operator, **kw
):
return self._generate_generic_binary(
binary, " #> ", eager_grouping=True, **kw
)
def visit_getitem_binary(self, binary, operator, **kw):
raise NotImplementedError()
class MyDialect(default.DefaultDialect):
statement_compiler = MyCompiler
type_compiler = MyTypeCompiler
class MyType(JSON):
__visit_name__ = "mytype"
pass
self.MyType = MyType
self.__dialect__ = MyDialect()