def __init__(self, config):
"""Initialize the various DbAugmentDict-derived dictionaries
:param config: configuration dictionary
"""
self.schemas = AugSchemaDict()
self.tables = AugClassDict()
self.columns = CfgColumnDict(cfg_section(config, 'columns'))
self.funcsrcs = CfgFunctionSourceDict(
cfg_section(config, 'function_templates'))
self.functions = CfgFunctionDict(cfg_section(config, 'functions'))
self.triggers = CfgTriggerDict(cfg_section(config, 'triggers'))
self.auditcols = CfgAuditColumnDict(
cfg_section(config, 'audit_columns'))
class AugDicts(object):
"""A holder for dictionaries (maps) describing augmentations"""
def __init__(self, config):
"""Initialize the various DbAugmentDict-derived dictionaries
:param config: configuration dictionary
"""
self.schemas = AugSchemaDict()
self.tables = AugClassDict()
self.columns = CfgColumnDict(cfg_section(config, 'columns'))
self.funcsrcs = CfgFunctionSourceDict(
cfg_section(config, 'function_templates'))
self.functions = CfgFunctionDict(cfg_section(config, 'functions'))
self.triggers = CfgTriggerDict(cfg_section(config, 'triggers'))
self.auditcols = CfgAuditColumnDict(
cfg_section(config, 'audit_columns'))
def _link_refs(self):
"""Link related objects"""
self.schemas.link_refs(self.tables)
def _link_current(self, db):
"""Link augment objects to current catalog objects"""
self.current = db
self.schemas.link_current(db.schemas)
self.tables.link_current(db.tables)
def add_func(self, schema, function):
"""Add a function to a schema if not already present
:param schema: schema name
:param function: the possibly new function
"""
if schema in self.schemas:
self.schemas[schema].add_func(function)
elif schema in self.current.schemas:
sch = self.current.schemas[schema]
if not hasattr(sch, 'functions'):
sch.functions = {}
if function.name not in sch.functions:
sch.functions.update({function.name: function})
def add_lang(self, lang):
"""Add a language if not already present
:param lang: the possibly new language
"""
if lang not in self.current.languages:
self.current.languages[lang] = Language(name=lang)