Revision 3429
Added by Aaron Marcuse-Kubitza over 12 years ago
| lib/sql_gen.py | ||
|---|---|---|
| 130 | 130 |
if isinstance(value, Code): return value |
| 131 | 131 |
else: return Literal(value) |
| 132 | 132 |
|
| 133 |
def is_null(value): return isinstance(value, Literal) and value.value == None
|
|
| 133 |
def is_literal(value): return isinstance(value, Literal)
|
|
| 134 | 134 |
|
| 135 |
def is_null(value): return is_literal(value) and value.value == None |
|
| 136 |
|
|
| 135 | 137 |
##### Derived elements |
| 136 | 138 |
|
| 137 | 139 |
src_self = object() # tells Col that it is its own source column |
| ... | ... | |
| 437 | 439 |
return 'CAST('+self.value.to_str(db)+' AS '+self.type_+')'
|
| 438 | 440 |
|
| 439 | 441 |
def cast_literal(value): |
| 440 |
if not isinstance(value, Literal): return value
|
|
| 442 |
if not is_literal(value): return value
|
|
| 441 | 443 |
|
| 442 | 444 |
if util.is_str(value.value): value = Cast('text', value)
|
| 443 | 445 |
return value |
| ... | ... | |
| 725 | 727 |
try: typed_col = db.col_info(underlying_col(col)) |
| 726 | 728 |
except NoUnderlyingTableException: |
| 727 | 729 |
col = remove_col_rename(col) |
| 728 |
if isinstance(col, Literal) and not is_null(col): nullable = False
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|
| 730 |
if is_literal(col) and not is_null(col): nullable = False
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|
| 729 | 731 |
elif type_ == None: raise |
| 730 | 732 |
else: |
| 731 | 733 |
if type_ == None: type_ = typed_col.type |
Also available in: Unified diff
sql_gen.py: Added is_literal() and use it where isinstance(..., Literal) is used