diff options
Diffstat (limited to 'lib/sqlalchemy/sql/compiler.py')
| -rw-r--r-- | lib/sqlalchemy/sql/compiler.py | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/lib/sqlalchemy/sql/compiler.py b/lib/sqlalchemy/sql/compiler.py index a7232f096..611cd1821 100644 --- a/lib/sqlalchemy/sql/compiler.py +++ b/lib/sqlalchemy/sql/compiler.py @@ -38,6 +38,7 @@ from . import operators from . import schema from . import selectable from . import sqltypes +from . import util as sql_util from .base import NO_ARG from .base import prefix_anon_map from .elements import quoted_name @@ -1216,7 +1217,8 @@ class SQLCompiler(Compiled): replacement_expressions[ escaped_name ] = self.render_literal_bindparam( - parameter, render_literal_value=value + parameter, + render_literal_value=value, ) continue @@ -2590,10 +2592,29 @@ class SQLCompiler(Compiled): processor = type_._cached_literal_processor(self.dialect) if processor: - return processor(value) + try: + return processor(value) + except Exception as e: + util.raise_( + exc.CompileError( + "Could not render literal value " + '"%s" ' + "with datatype " + "%s; see parent stack trace for " + "more detail." + % ( + sql_util._repr_single_value(value), + type_, + ) + ), + from_=e, + ) + else: - raise NotImplementedError( - "Don't know how to literal-quote value %r" % value + raise exc.CompileError( + "No literal value renderer is available for literal value " + '"%s" with datatype %s' + % (sql_util._repr_single_value(value), type_) ) def _truncate_bindparam(self, bindparam): |