TableDiffTool: add arguments to set different destination schema and table. PgDataDiff: fixes.
# -*- coding: utf-8 -*-## PgBrowser - browse database schema and metadata## Some of the queries came from psql.## Copyright (c) 2011 Radek Brich <radek.brich@devl.cz>## Permission is hereby granted, free of charge, to any person obtaining a copy# of this software and associated documentation files (the "Software"), to deal# in the Software without restriction, including without limitation the rights# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell# copies of the Software, and to permit persons to whom the Software is# furnished to do so, subject to the following conditions:## The above copyright notice and this permission notice shall be included in# all copies or substantial portions of the Software.## THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN# THE SOFTWARE.from collections import OrderedDictclass Column: def __init__(self, browser, table, name, type, notnull, hasdefault, default, description): self.browser = browser # Browser instance self.table = table # Table instance self.name = name self.type = type self.notnull = notnull self.hasdefault = hasdefault self.default = default self.description = descriptionclass Constraint: def __init__(self, browser, table, name, type, definition): self.browser = browser self.table = table self.name = name self.type = type self.definition = definitionclass Index: def __init__(self, browser, table, name, primary, unique, clustered, valid, definition): self.browser = browser self.table = table self.name = name self.primary = primary self.unique = unique self.clustered = clustered self.valid = valid self.definition = definitionclass Table: def __init__(self, browser, schema, name, owner, size, description): self._columns = None self._constraints = None self._indexes = None self.browser = browser # Browser instance self.schema = schema # Schema instance self.name = name # table name, str self.owner = owner self.size = size self.description = description def refresh(self): self.refresh_columns() self.refresh_constraints() self.refresh_indexes() def refresh_columns(self): rows = self.browser.list_columns(self.name, self.schema.name) self._columns = OrderedDict([(x['name'], Column(self.browser, self, **x)) for x in rows]) def refresh_constraints(self): rows = self.browser.list_constraints(self.name, self.schema.name) self._constraints = OrderedDict([(x['name'], Constraint(self.browser, self, **x)) for x in rows]) def refresh_indexes(self): rows = self.browser.list_indexes(self.name, self.schema.name) self._indexes = OrderedDict([(x['name'], Index(self.browser, self, **x)) for x in rows]) def getcolumns(self): if self._columns is None: self.refresh_columns() return self._columns columns = property(getcolumns) def getconstraints(self): if self._constraints is None: self.refresh_constraints() return self._constraints constraints = property(getconstraints) def getindexes(self): if self._indexes is None: self.refresh_indexes() return self._indexes indexes = property(getindexes)class Schema: def __init__(self, browser, name, owner, acl, description, system): self._tables = None self.browser = browser self.name = name self.owner = owner self.acl = acl self.description = description self.system = system def refresh(self): rows = self.browser.list_tables(self.name) self._tables = OrderedDict([(x['name'], Table(self.browser, self, **x)) for x in rows]) def gettables(self): if self._tables is None: self.refresh() return self._tables tables = property(gettables)class PgBrowser: def __init__(self, conn=None): self._schemas = None self.conn = conn def setconn(self, conn=None): self.conn = conn def refresh(self): rows = self.list_schemas() self._schemas = OrderedDict([(x['name'], Schema(self, **x)) for x in rows]) def getschemas(self): if self._schemas is None: self.refresh() return self._schemas schemas = property(getschemas) def _query(self, query, *args): try: curs = self.conn.cursor() curs.execute(query, args) curs.connection.commit() rows = curs.fetchall() return [dict(zip([desc[0] for desc in curs.description], row)) for row in rows] finally: curs.close() def list_databases(self): return self._query(''' SELECT d.datname as "name", pg_catalog.pg_get_userbyid(d.datdba) as "owner", pg_catalog.pg_encoding_to_char(d.encoding) as "encoding", d.datcollate as "collation", d.datctype as "ctype", d.datacl AS "acl", CASE WHEN pg_catalog.has_database_privilege(d.datname, 'CONNECT') THEN pg_catalog.pg_database_size(d.datname) ELSE -1 -- No access END as "size", t.spcname as "tablespace", pg_catalog.shobj_description(d.oid, 'pg_database') as "description" FROM pg_catalog.pg_database d JOIN pg_catalog.pg_tablespace t on d.dattablespace = t.oid ORDER BY 1; ''') def list_schemas(self): return self._query(''' SELECT n.nspname AS "name", pg_catalog.pg_get_userbyid(n.nspowner) AS "owner", n.nspacl AS "acl", pg_catalog.obj_description(n.oid, 'pg_namespace') AS "description", CASE WHEN n.nspname IN ('information_schema', 'pg_catalog', 'pg_toast') OR n.nspname ~ '^pg_temp_' OR n.nspname ~ '^pg_toast_temp_' THEN TRUE ELSE FALSE END AS "system" FROM pg_catalog.pg_namespace n ORDER BY 1; ''') def list_tables(self, schema='public'): return self._query(''' SELECT c.relname as "name", pg_catalog.pg_get_userbyid(c.relowner) as "owner", pg_catalog.pg_relation_size(c.oid) as "size", pg_catalog.obj_description(c.oid, 'pg_class') as "description" FROM pg_catalog.pg_class c LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace WHERE n.nspname = %s AND c.relkind IN ('r','s','') ORDER BY 1; ''', schema) def list_columns(self, table, schema='public', order=2): return self._query(''' SELECT a.attrelid, a.attname as "name", format_type(a.atttypid, a.atttypmod) AS "type", a.attnotnull as "notnull", a.atthasdef as "hasdefault", d.adsrc as "default", pg_catalog.col_description(a.attrelid, a.attnum) AS "description" FROM pg_catalog.pg_attribute a LEFT JOIN pg_catalog.pg_class c ON a.attrelid = c.oid LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace LEFT JOIN pg_catalog.pg_attrdef d ON a.attrelid = d.adrelid AND a.attnum = d.adnum WHERE n.nspname = %s AND c.relname = %s AND a.attnum > 0 AND NOT a.attisdropped ORDER BY ''' + str(order), schema, table) def list_constraints(self, table, schema='public'): return self._query(''' SELECT conname as "name", r.contype as "type", pg_catalog.pg_get_constraintdef(r.oid, true) as "definition" FROM pg_catalog.pg_constraint r JOIN pg_catalog.pg_class c ON r.conrelid = c.oid JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace WHERE n.nspname = %s AND c.relname = %s ORDER BY 1 ''', schema, table) def list_indexes(self, table, schema='public'): return self._query(''' SELECT c2.relname as "name", i.indisprimary as "primary", i.indisunique as "unique", i.indisclustered as "clustered", i.indisvalid as "valid", pg_catalog.pg_get_indexdef(i.indexrelid, 0, true) as "definition" --c2.reltablespace as "tablespace_oid" FROM pg_catalog.pg_class c JOIN pg_catalog.pg_index i ON c.oid = i.indrelid JOIN pg_catalog.pg_class c2 ON i.indexrelid = c2.oid JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace WHERE n.nspname = %s AND c.relname = %s ORDER BY i.indisprimary DESC, i.indisunique DESC, c2.relname ''', schema, table)