mirror of
https://github.com/qgis/QGIS.git
synced 2025-11-04 00:04:25 -05:00
260 lines
12 KiB
Python
260 lines
12 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
/***************************************************************************
|
|
Name : DB Manager
|
|
Description : Database manager plugin for QGIS
|
|
Date : May 23, 2011
|
|
copyright : (C) 2011 by Giuseppe Sucameli
|
|
email : brush.tyler@gmail.com
|
|
|
|
***************************************************************************/
|
|
|
|
/***************************************************************************
|
|
* *
|
|
* This program is free software; you can redistribute it and/or modify *
|
|
* it under the terms of the GNU General Public License as published by *
|
|
* the Free Software Foundation; either version 2 of the License, or *
|
|
* (at your option) any later version. *
|
|
* *
|
|
***************************************************************************/
|
|
"""
|
|
|
|
from qgis.PyQt.QtWidgets import QApplication
|
|
|
|
from ..info_model import TableInfo, VectorTableInfo, RasterTableInfo, DatabaseInfo
|
|
from ..html_elems import HtmlSection, HtmlParagraph, HtmlTable, HtmlTableHeader, HtmlTableCol
|
|
|
|
|
|
class PGDatabaseInfo(DatabaseInfo):
|
|
|
|
def connectionDetails(self):
|
|
tbl = [
|
|
(QApplication.translate("DBManagerPlugin", "Host:"), self.db.connector.host),
|
|
(QApplication.translate("DBManagerPlugin", "User:"), self.db.connector.user),
|
|
(QApplication.translate("DBManagerPlugin", "Database:"), self.db.connector.dbname)
|
|
]
|
|
return HtmlTable(tbl)
|
|
|
|
|
|
class PGTableInfo(TableInfo):
|
|
|
|
def __init__(self, table):
|
|
self.table = table
|
|
|
|
def generalInfo(self):
|
|
ret = []
|
|
|
|
# if the estimation is less than 100 rows, try to count them - it shouldn't take long time
|
|
if self.table.rowCount is None and self.table.estimatedRowCount < 100:
|
|
# row count information is not displayed yet, so just block
|
|
# table signals to avoid double refreshing (infoViewer->refreshRowCount->tableChanged->infoViewer)
|
|
self.table.blockSignals(True)
|
|
self.table.refreshRowCount()
|
|
self.table.blockSignals(False)
|
|
|
|
tbl = [
|
|
(QApplication.translate("DBManagerPlugin", "Relation type:"),
|
|
QApplication.translate("DBManagerPlugin", "View") if self.table._relationType == 'v' else
|
|
QApplication.translate("DBManagerPlugin", "Materialized view") if self.table._relationType == 'm' else
|
|
QApplication.translate("DBManagerPlugin", "Table")),
|
|
(QApplication.translate("DBManagerPlugin", "Owner:"), self.table.owner)
|
|
]
|
|
if self.table.comment:
|
|
tbl.append((QApplication.translate("DBManagerPlugin", "Comment:"), self.table.comment))
|
|
|
|
tbl.extend([
|
|
(QApplication.translate("DBManagerPlugin", "Pages:"), self.table.pages),
|
|
(QApplication.translate("DBManagerPlugin", "Rows (estimation):"), self.table.estimatedRowCount)
|
|
])
|
|
|
|
# privileges
|
|
# has the user access to this schema?
|
|
schema_priv = self.table.database().connector.getSchemaPrivileges(
|
|
self.table.schemaName()) if self.table.schema() else None
|
|
if schema_priv is None:
|
|
pass
|
|
elif not schema_priv[1]: # no usage privileges on the schema
|
|
tbl.append((QApplication.translate("DBManagerPlugin", "Privileges:"),
|
|
QApplication.translate("DBManagerPlugin",
|
|
"<warning> This user doesn't have usage privileges for this schema!")))
|
|
else:
|
|
table_priv = self.table.database().connector.getTablePrivileges((self.table.schemaName(), self.table.name))
|
|
privileges = []
|
|
if table_priv[0]:
|
|
privileges.append("select")
|
|
|
|
if self.table.rowCount is not None or self.table.rowCount >= 0:
|
|
tbl.append((QApplication.translate("DBManagerPlugin", "Rows (counted):"),
|
|
self.table.rowCount if self.table.rowCount is not None else QApplication.translate(
|
|
"DBManagerPlugin", 'Unknown (<a href="action:rows/count">find out</a>)')))
|
|
|
|
if table_priv[1]:
|
|
privileges.append("insert")
|
|
if table_priv[2]:
|
|
privileges.append("update")
|
|
if table_priv[3]:
|
|
privileges.append("delete")
|
|
priv_string = u", ".join(privileges) if len(privileges) > 0 else QApplication.translate("DBManagerPlugin",
|
|
'<warning> This user has no privileges!')
|
|
tbl.append((QApplication.translate("DBManagerPlugin", "Privileges:"), priv_string))
|
|
|
|
ret.append(HtmlTable(tbl))
|
|
|
|
if schema_priv is not None and schema_priv[1]:
|
|
if table_priv[0] and not table_priv[1] and not table_priv[2] and not table_priv[3]:
|
|
ret.append(HtmlParagraph(
|
|
QApplication.translate("DBManagerPlugin", "<warning> This user has read-only privileges.")))
|
|
|
|
if not self.table.isView:
|
|
if self.table.rowCount is not None:
|
|
if abs(self.table.estimatedRowCount - self.table.rowCount) > 1 and \
|
|
(self.table.estimatedRowCount > 2 * self.table.rowCount or
|
|
self.table.rowCount > 2 * self.table.estimatedRowCount):
|
|
ret.append(HtmlParagraph(QApplication.translate("DBManagerPlugin",
|
|
"<warning> There's a significant difference between estimated and real row count. "
|
|
'Consider running <a href="action:vacuumanalyze/run">VACUUM ANALYZE</a>.')))
|
|
|
|
# primary key defined?
|
|
if not self.table.isView:
|
|
if len([fld for fld in self.table.fields() if fld.primaryKey]) <= 0:
|
|
ret.append(HtmlParagraph(
|
|
QApplication.translate("DBManagerPlugin", "<warning> No primary key defined for this table!")))
|
|
|
|
return ret
|
|
|
|
def getSpatialInfo(self):
|
|
ret = []
|
|
|
|
info = self.db.connector.getSpatialInfo()
|
|
if info is None:
|
|
return
|
|
|
|
tbl = [
|
|
(QApplication.translate("DBManagerPlugin", "Library:"), info[0]),
|
|
(QApplication.translate("DBManagerPlugin", "Scripts:"), info[3]),
|
|
("GEOS:", info[1]),
|
|
("Proj:", info[2])
|
|
]
|
|
ret.append(HtmlTable(tbl))
|
|
|
|
if info[1] is not None and info[1] != info[2]:
|
|
ret.append(HtmlParagraph(QApplication.translate("DBManagerPlugin",
|
|
"<warning> Version of installed scripts doesn't match version of released scripts!\n"
|
|
"This is probably a result of incorrect PostGIS upgrade.")))
|
|
|
|
if not self.db.connector.has_geometry_columns:
|
|
ret.append(HtmlParagraph(
|
|
QApplication.translate("DBManagerPlugin", "<warning> geometry_columns table doesn't exist!\n"
|
|
"This table is essential for many GIS applications for enumeration of tables.")))
|
|
elif not self.db.connector.has_geometry_columns_access:
|
|
ret.append(HtmlParagraph(QApplication.translate("DBManagerPlugin",
|
|
"<warning> This user doesn't have privileges to read contents of geometry_columns table!\n"
|
|
"This table is essential for many GIS applications for enumeration of tables.")))
|
|
|
|
return ret
|
|
|
|
def fieldsDetails(self):
|
|
tbl = []
|
|
|
|
# define the table header
|
|
header = (
|
|
"#", QApplication.translate("DBManagerPlugin", "Name"), QApplication.translate("DBManagerPlugin", "Type"),
|
|
QApplication.translate("DBManagerPlugin", "Length"), QApplication.translate("DBManagerPlugin", "Null"),
|
|
QApplication.translate("DBManagerPlugin", "Default"))
|
|
tbl.append(HtmlTableHeader(header))
|
|
|
|
# add table contents
|
|
for fld in self.table.fields():
|
|
char_max_len = fld.charMaxLen if fld.charMaxLen is not None and fld.charMaxLen != -1 else ""
|
|
is_null_txt = "N" if fld.notNull else "Y"
|
|
|
|
# make primary key field underlined
|
|
attrs = {"class": "underline"} if fld.primaryKey else None
|
|
name = HtmlTableCol(fld.name, attrs)
|
|
|
|
tbl.append((fld.num, name, fld.type2String(), char_max_len, is_null_txt, fld.default2String()))
|
|
|
|
return HtmlTable(tbl, {"class": "header"})
|
|
|
|
def triggersDetails(self):
|
|
if self.table.triggers() is None or len(self.table.triggers()) <= 0:
|
|
return None
|
|
|
|
ret = []
|
|
|
|
tbl = []
|
|
# define the table header
|
|
header = (
|
|
QApplication.translate("DBManagerPlugin", "Name"), QApplication.translate("DBManagerPlugin", "Function"),
|
|
QApplication.translate("DBManagerPlugin", "Type"), QApplication.translate("DBManagerPlugin", "Enabled"))
|
|
tbl.append(HtmlTableHeader(header))
|
|
|
|
# add table contents
|
|
for trig in self.table.triggers():
|
|
name = u'%(name)s (<a href="action:trigger/%(name)s/%(action)s">%(action)s</a>)' % {"name": trig.name,
|
|
"action": "delete"}
|
|
|
|
(enabled, action) = (QApplication.translate("DBManagerPlugin", "Yes"), "disable") if trig.enabled else (
|
|
QApplication.translate("DBManagerPlugin", "No"), "enable")
|
|
txt_enabled = u'%(enabled)s (<a href="action:trigger/%(name)s/%(action)s">%(action)s</a>)' % {
|
|
"name": trig.name, "action": action, "enabled": enabled}
|
|
|
|
tbl.append((name, trig.function, trig.type2String(), txt_enabled))
|
|
|
|
ret.append(HtmlTable(tbl, {"class": "header"}))
|
|
|
|
ret.append(HtmlParagraph(QApplication.translate("DBManagerPlugin",
|
|
'<a href="action:triggers/enable">Enable all triggers</a> / <a href="action:triggers/disable">Disable all triggers</a>')))
|
|
return ret
|
|
|
|
def rulesDetails(self):
|
|
if self.table.rules() is None or len(self.table.rules()) <= 0:
|
|
return None
|
|
|
|
tbl = []
|
|
# define the table header
|
|
header = (
|
|
QApplication.translate("DBManagerPlugin", "Name"), QApplication.translate("DBManagerPlugin", "Definition"))
|
|
tbl.append(HtmlTableHeader(header))
|
|
|
|
# add table contents
|
|
for rule in self.table.rules():
|
|
name = u'%(name)s (<a href="action:rule/%(name)s/%(action)s">%(action)s</a>)' % {"name": rule.name,
|
|
"action": "delete"}
|
|
tbl.append((name, rule.definition))
|
|
|
|
return HtmlTable(tbl, {"class": "header"})
|
|
|
|
def getTableInfo(self):
|
|
ret = TableInfo.getTableInfo(self)
|
|
|
|
# rules
|
|
rules_details = self.rulesDetails()
|
|
if rules_details is None:
|
|
pass
|
|
else:
|
|
ret.append(HtmlSection(QApplication.translate("DBManagerPlugin", 'Rules'), rules_details))
|
|
|
|
return ret
|
|
|
|
|
|
class PGVectorTableInfo(PGTableInfo, VectorTableInfo):
|
|
|
|
def __init__(self, table):
|
|
VectorTableInfo.__init__(self, table)
|
|
PGTableInfo.__init__(self, table)
|
|
|
|
def spatialInfo(self):
|
|
return VectorTableInfo.spatialInfo(self)
|
|
|
|
|
|
class PGRasterTableInfo(PGTableInfo, RasterTableInfo):
|
|
|
|
def __init__(self, table):
|
|
RasterTableInfo.__init__(self, table)
|
|
PGTableInfo.__init__(self, table)
|
|
|
|
def spatialInfo(self):
|
|
return RasterTableInfo.spatialInfo(self)
|