--- a/tools/pgbrowser.py Tue Aug 16 15:12:53 2011 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,258 +0,0 @@
-# -*- 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 OrderedDict
-
-
-class 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 = description
-
-
-class Constraint:
- def __init__(self, browser, table, name, type, definition):
- self.browser = browser
- self.table = table
- self.name = name
- self.type = type
- self.definition = definition
-
-
-class 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 = definition
-
-
-class 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'):
- return self._query('''
- SELECT
- 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 1
- ''', 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)
-