我们从Python开源项目中，提取了以下50个代码示例，用于说明如何使用sqlalchemy.util.warn()。
def define_constraint_cascades(self, constraint): text = "" if constraint.ondelete is not None: text += " ON DELETE %s" % constraint.ondelete # oracle has no ON UPDATE CASCADE - # its only available via triggers # http://asktom.oracle.com/tkyte/update_cascade/index.html if constraint.onupdate is not None: util.warn( "Oracle does not contain native UPDATE CASCADE " "functionality - onupdates will not be rendered for foreign " "keys. Consider using deferrable=True, initially='deferred' " "or triggers.") return text
def get_columns(self, connection, table_name, schema=None, **kw): table = self._get_table(connection, table_name, schema) columns = table.schema result = [] for col in columns: try: coltype = _type_map[col.field_type] except KeyError: util.warn("Did not recognize type '%s' of column '%s'" % (col.field_type, col.name)) result.append({ 'name': col.name, 'type': coltype, 'nullable': True if col.mode == 'NULLABLE' else False, 'default': None, }) return result
def __init__(self, **kwargs): SQLiteDialect.__init__(self, **kwargs) if self.dbapi is not None: sqlite_ver = self.dbapi.version_info if sqlite_ver < (2, 1, 3): util.warn( ("The installed version of pysqlite2 (%s) is out-dated " "and will cause errors in some cases. Version 2.1.3 " "or greater is recommended.") % '.'.join([str(subver) for subver in sqlite_ver]))
def _get_column_info(self, name, type_, nullable, autoincrement, default, precision, scale, length): coltype = self.ischema_names.get(type_, None) kwargs = {} if coltype in (NUMERIC, DECIMAL): args = (precision, scale) elif coltype == FLOAT: args = (precision,) elif coltype in (CHAR, VARCHAR, UNICHAR, UNIVARCHAR, NCHAR, NVARCHAR): args = (length,) else: args = () if coltype: coltype = coltype(*args, **kwargs) # is this necessary # if is_array: # coltype = ARRAY(coltype) else: util.warn("Did not recognize type '%s' of column '%s'" % (type_, name)) coltype = sqltypes.NULLTYPE if default: default = re.sub("DEFAULT", "", default).strip() default = re.sub("^'(.*)'$", lambda m: m.group(1), default) else: default = None column_info = dict(name=name, type=coltype, nullable=nullable, default=default, autoincrement=autoincrement) return column_info
def _extract_non_list_result(self, result): """logic copied from LazyLoader#_emit_lazyload""" l = len(result) if l: if l > 1: util.warn( "Multiple rows returned with " "uselist=False for lazily-loaded attribute '%s' " % self.parent_property) return result[0] else: return None
def _get_column_info(self, name, type_, nullable, autoincrement, default, precision, scale, length): coltype = self.ischema_names.get(type_, None) kwargs = {} if coltype in (NUMERIC, DECIMAL): args = (precision, scale) elif coltype == FLOAT: args = (precision,) elif coltype in (CHAR, VARCHAR, UNICHAR, UNIVARCHAR, NCHAR, NVARCHAR): args = (length,) else: args = () if coltype: coltype = coltype(*args, **kwargs) # is this necessary # if is_array: # coltype = ARRAY(coltype) else: util.warn("Did not recognize type '%s' of column '%s'" % (type_, name)) coltype = sqltypes.NULLTYPE if default: default = default.replace("DEFAULT", "").strip() default = re.sub("^'(.*)'$", lambda m: m.group(1), default) else: default = None column_info = dict(name=name, type=coltype, nullable=nullable, default=default, autoincrement=autoincrement) return column_info
def _get_column_info(self, name, type_, nullable, default, primary_key): match = re.match(r'(\w+)(\(.*?\))?', type_) if match: coltype = match.group(1) args = match.group(2) else: coltype = "VARCHAR" args = '' try: coltype = self.ischema_names[coltype] if args is not None: args = re.findall(r'(\d+)', args) coltype = coltype(*[int(a) for a in args]) except KeyError: util.warn("Did not recognize type '%s' of column '%s'" % (coltype, name)) coltype = sqltypes.NullType() if default is not None: default = unicode(default) return { 'name': name, 'type': coltype, 'nullable': nullable, 'default': default, 'autoincrement': default is None, 'primary_key': primary_key }
def define_constraint_cascades(self, constraint): text = "" if constraint.ondelete is not None: text += " ON DELETE %s" % constraint.ondelete # oracle has no ON UPDATE CASCADE - # its only available via triggers http://asktom.oracle.com/tkyte/update_cascade/index.html if constraint.onupdate is not None: util.warn( "Oracle does not contain native UPDATE CASCADE " "functionality - onupdates will not be rendered for foreign keys. " "Consider using deferrable=True, initially='deferred' or triggers.") return text
def _get_column_info(self, name, type_, nullable, autoincrement, default, precision, scale, length): coltype = self.ischema_names.get(type_, None) kwargs = {} if coltype in (NUMERIC, DECIMAL): args = (precision, scale) elif coltype == FLOAT: args = (precision,) elif coltype in (CHAR, VARCHAR, UNICHAR, UNIVARCHAR, NCHAR, NVARCHAR): args = (length,) else: args = () if coltype: coltype = coltype(*args, **kwargs) #is this necessary #if is_array: # coltype = ARRAY(coltype) else: util.warn("Did not recognize type '%s' of column '%s'" % (type_, name)) coltype = sqltypes.NULLTYPE if default: default = re.sub("DEFAULT", "", default).strip() default = re.sub("^'(.*)'$", lambda m: m.group(1), default) else: default = None column_info = dict(name=name, type=coltype, nullable=nullable, default=default, autoincrement=autoincrement) return column_info
