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| """Schema diff object comparison.""" |
|
|
| from flask import render_template |
| from pgadmin.utils.driver import get_driver |
| from config import PG_DEFAULT_DRIVER |
| from pgadmin.utils.ajax import internal_server_error |
| from pgadmin.tools.schema_diff.directory_compare import compare_dictionaries |
|
|
|
|
| class SchemaDiffObjectCompare: |
|
|
| keys_to_ignore = ['oid', 'oid-2', 'is_sys_obj', 'schema'] |
|
|
| @staticmethod |
| def get_schema(sid, did, scid): |
| """ |
| This function will return the schema name. |
| """ |
|
|
| driver = get_driver(PG_DEFAULT_DRIVER) |
| manager = driver.connection_manager(sid) |
| conn = manager.connection(did=did) |
|
|
| ver = manager.version |
| server_type = manager.server_type |
|
|
| |
| status, schema_name = conn.execute_scalar( |
| render_template( |
| "/".join(['schemas', |
| '{0}/#{1}#'.format(server_type, ver), |
| 'sql/get_name.sql']), |
| conn=conn, scid=scid |
| ) |
| ) |
|
|
| return status, schema_name |
|
|
| def compare(self, **kwargs): |
| """ |
| This function is used to compare all the objects |
| from two different schemas. |
| |
| :param kwargs: |
| :return: |
| """ |
| source_params = {'sid': kwargs.get('source_sid'), |
| 'did': kwargs.get('source_did')} |
| target_params = {'sid': kwargs.get('target_sid'), |
| 'did': kwargs.get('target_did')} |
| ignore_owner = kwargs.get('ignore_owner', False) |
| ignore_whitespaces = kwargs.get('ignore_whitespaces', False) |
| ignore_tablespace = kwargs.get('ignore_tablespace', False) |
| ignore_grants = kwargs.get('ignore_grants', False) |
|
|
| group_name = kwargs.get('group_name') |
| source_schema_name = kwargs.get('source_schema_name', None) |
| source = {} |
| target = {} |
|
|
| status, target_schema = self.get_schema(kwargs.get('target_sid'), |
| kwargs.get('target_did'), |
| kwargs.get('target_scid')) |
| if not status: |
| return internal_server_error(errormsg=target_schema) |
|
|
| if group_name == 'Database Objects': |
| source = self.fetch_objects_to_compare(**source_params) |
| target = self.fetch_objects_to_compare(**target_params) |
| else: |
| source_params['scid'] = kwargs.get('source_scid') |
| target_params['scid'] = kwargs.get('target_scid') |
|
|
| if 'scid' in source_params and source_params['scid'] is not None: |
| source = self.fetch_objects_to_compare(**source_params) |
|
|
| if 'scid' in target_params and target_params['scid'] is not None: |
| target = self.fetch_objects_to_compare(**target_params) |
|
|
| |
| if not (source or target) or not \ |
| (isinstance(source, dict) and isinstance(target, dict)) or \ |
| (len(source) <= 0 and len(target) <= 0): |
| return None |
|
|
| return compare_dictionaries(view_object=self, |
| source_params=source_params, |
| target_params=target_params, |
| target_schema=target_schema, |
| source_dict=source, |
| target_dict=target, |
| node=self.node_type, |
| node_label=self.blueprint.collection_label, |
| group_name=group_name, |
| ignore_keys=self.keys_to_ignore, |
| source_schema_name=source_schema_name, |
| ignore_owner=ignore_owner, |
| ignore_whitespaces=ignore_whitespaces, |
| ignore_tablespace=ignore_tablespace, |
| ignore_grants=ignore_grants) |
|
|
| def ddl_compare(self, **kwargs): |
| """ |
| This function will compare object properties and |
| return the difference of SQL |
| """ |
|
|
| source_params = {'gid': 1, |
| 'sid': kwargs.get('source_sid'), |
| 'did': kwargs.get('source_did'), |
| 'oid': kwargs.get('source_oid') |
| } |
|
|
| target_params = {'gid': 1, |
| 'sid': kwargs.get('target_sid'), |
| 'did': kwargs.get('target_did'), |
| 'oid': kwargs.get('target_oid') |
| } |
|
|
| source_scid = kwargs.get('source_scid') |
| if source_scid is not None and source_scid != 0: |
| source_params['scid'] = source_scid |
|
|
| target_scid = kwargs.get('target_scid') |
| if target_scid is not None and target_scid != 0: |
| target_params['scid'] = target_scid |
|
|
| source = self.get_sql_from_diff(**source_params) |
| target = self.get_sql_from_diff(**target_params) |
|
|
| return {'source_ddl': source, |
| 'target_ddl': target, |
| 'diff_ddl': '' |
| } |
|
|
