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_naf_tableview.py
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_naf_tableview.py
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# -*- coding: utf-8 -*-
# $Id$
# -------------------------------------------------------------------
# Copyright 2010 Achim Köhler
#
# This file is part of openADAMS.
#
# openADAMS 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.
#
# openADAMS is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with openADAMS. If not, see <http://www.gnu.org/licenses/>.
# -------------------------------------------------------------------
import sqlite3, logging
from PyQt4 import QtGui, QtCore
from PyQt4.QtCore import Qt
import _naf_database as nafdb
from _naf_database import TYPE_FOLDER, TYPE_REQUIREMENT
import _naf_filter
NORMAL_RELATION = 0
REVERSE_RELATION = 1
IGNORE_RELATION = 2
class cItemTableModel(QtCore.QAbstractTableModel):
"""Model to get items from related tableName which are related
to a certain item identified by parentid
"""
def __init__(self, tableName, columnNames, relationType=NORMAL_RELATION, itemsCheckable=False):
QtCore.QAbstractTableModel.__init__(self)
if itemsCheckable: assert(relationType==IGNORE_RELATION)
self.parentid = -1
self.idmap = []
self.rowCount = -1
self.columnCount = len(columnNames)
self.tableName = tableName
self.tableDisplayName = nafdb.getTableDisplayName(tableName)
self.columnNames = columnNames
self.columnstring = ','.join(columnNames)
self.headerNames = nafdb.getHeaderDataForColumns(tableName, columnNames)
self.orderClause = ""
self.whereClause = ""
self.relationType = relationType
self.relatedidmap = []
self.itemsCheckable = [Qt.NoItemFlags, Qt.ItemIsUserCheckable][itemsCheckable]
def setCurrentIndex(self, parentid, updateRelatedIdMap=True):
logging.info("parentid=%d" % parentid)
self.parentid = parentid
cur = nafdb.connection.cursor()
if self.relationType == REVERSE_RELATION:
query = 'select id from %(tn)s where id in (select id from relations where relatedid=?) %(wc)s %(oc)s;' % {'tn':self.tableName, 'oc':self.orderClause, 'wc':self.whereClause}
elif self.relationType == IGNORE_RELATION:
query = 'select id from %(tn)s where id != ? %(wc)s %(oc)s;' % {'tn':self.tableName, 'oc':self.orderClause, 'wc':self.whereClause}
else: # NORMAL_RELATION
query = 'select id from %(tn)s where id in (select relatedid from relations where id=?) %(wc)s %(oc)s;' % {'tn':self.tableName, 'oc':self.orderClause, 'wc':self.whereClause}
cur.execute(query, (self.parentid,))
self.idmap = [id[0] for id in cur.fetchall()]
self.rowCount = len(self.idmap)
if updateRelatedIdMap:
# in case of sorting or filtering the relatedidmap needs not to be updated
if self.itemsCheckable == Qt.ItemIsUserCheckable:
query = 'select id from %(tn)s where id in (select relatedid from relations where id=?);' % {'tn':self.tableName}
cur.execute(query, (self.parentid,))
self.relatedidmap = [id[0] for id in cur.fetchall()]
else:
self.relatedidmap = []
self.reset()
def rowCount(self, parent):
return self.rowCount
def columnCount(self, parent):
return self.columnCount
def _translate(self, item):
return QtCore.QCoreApplication.translate('lookupTable', item)
def data(self, index, role):
row = index.row()
id = self.idmap[row]
if role == Qt.CheckStateRole and self.itemsCheckable == Qt.ItemIsUserCheckable and index.column() == 0:
return QtCore.QVariant([Qt.Unchecked, Qt.Checked][id in self.relatedidmap])
if role not in (Qt.DisplayRole, Qt.EditRole):
return QtCore.QVariant()
columnName = self.columnNames[index.column()]
logging.debug("row=%s, id=%s, columnName=%s"% (str(row), str(id), str(columnName)))
return nafdb.getItemForId(self.tableName, id, columnName, self._translate)
def headerData(self, section, orientation, role):
if role not in (Qt.DisplayRole, Qt.EditRole):
return QtCore.QVariant()
if orientation == Qt.Horizontal:
return QtCore.QVariant(self.headerNames[section])
else:
return QtCore.QVariant(section+1)
def sort(self, column, order):
logging.debug("sort(column=%d, order=%d)" % (column, order))
self.layoutAboutToBeChanged.emit()
self.orderClause = "order by %s %s" % (self.columnNames[column], ('ASC', 'DESC')[order])
self.setCurrentIndex(self.parentid, updateRelatedIdMap=False)
self.layoutChanged.emit()
def setFilter(self, tableName, whereClause):
if tableName != self.tableName:
return
self.layoutAboutToBeChanged.emit()
if len(whereClause) > 0:
self.whereClause = 'and ' + whereClause
else:
self.whereClause = whereClause
self.setCurrentIndex(self.parentid, updateRelatedIdMap=False)
self.layoutChanged.emit()
def flags(self, index):
if not index.isValid():
return Qt.ItemIsEnabled
flags = QtCore.QAbstractItemModel.flags(self, index)
if index.column() == 0:
return flags | self.itemsCheckable
return flags
def setData(self, index, value, role):
if role == Qt.CheckStateRole:
row = index.row()
id = self.idmap[row]
if value.toInt()[0] != 0:
self.relatedidmap.append(id)
else:
self.relatedidmap.remove(id)
return True
return False
def submit(self):
# if items are not checkable there is nothing to submit
if not self.itemsCheckable:
return False
# submit assumes certain conditions
assert(self.itemsCheckable == Qt.ItemIsUserCheckable)
assert(self.relationType==IGNORE_RELATION)
cur = nafdb.connection.cursor()
cur.execute("delete from relations where id=? and relatedid in (select id from %s)" % self.tableName, (self.parentid,))
cur.executemany("insert into relations values (?, ?);", zip([self.parentid] * len(self.relatedidmap), self.relatedidmap))
nafdb.connection.commit()
return True
class cNotifier(object):
def __init__(self):
self.observer = []
def addObserver(self, observer):
self.observer.append(observer)
def setCurrentIndex(self, itemid):
for observer in self.observer:
observer.mapper.setCurrentIndex(itemid)
def beginResetModel(self):
for observer in self.observer:
observer.mapper.beginResetModel()
def endResetModel(self):
for observer in self.observer:
observer.mapper.endResetModel()
def setFilter(self, tableName, whereClause):
for observer in self.observer:
observer.mapper.setFilter(tableName, whereClause)
def submit(self):
for observer in self.observer:
observer.mapper.submit()
def revert(self):
for observer in self.observer:
observer.mapper.revert()
class cItemTableView(QtGui.QTableView):
def __init__(self, model, parent=None):
QtGui.QTableView.__init__(self, parent, sortingEnabled=True)
self.horizontalHeader().setStretchLastSection(True)
self.horizontalHeader().setResizeMode(QtGui.QHeaderView.Interactive)
self.horizontalHeader().setDefaultAlignment(Qt.AlignLeft)
self.setModel(model)
self.mapper = self.model()
class cAllItemTableView(QtGui.QWidget):
def __init__(self, parent=None):
QtGui.QWidget.__init__(self, parent)
views = []
featureTableView = cItemTableView(cItemTableModel('features', ('id', 'title', 'priority', 'risk', 'status', 'keywords')), self)
views.append(featureTableView)
requirementTableView = cItemTableView(cItemTableModel('requirements', ('id', 'title', 'priority', 'risk', 'status', 'complexity', 'assigned', 'effort', 'category', 'testability', 'baseline', 'keywords')), self)
views.append(requirementTableView)
usecaseTableView = cItemTableView(cItemTableModel('usecases', ('id', 'title', 'priority', 'usefrequency', 'actors', 'stakeholders', 'keywords')), self)
views.append(usecaseTableView)
testcaseTableView = cItemTableView(cItemTableModel('testcases', ('id', 'title', 'priority', 'keywords')), self)
views.append(testcaseTableView)
testsuiteTableView = cItemTableView(cItemTableModel('testsuites', ('id', 'title', 'keywords')), self)
views.append(testsuiteTableView)
componentTableView = cItemTableView(cItemTableModel('components', ('id', 'title', 'keywords', 'kind')), self)
views.append(componentTableView)
self.mapper = cNotifier()
map(self.mapper.addObserver, views)
tabBar = QtGui.QTabBar(self)
for view in views:
tabBar.addTab(view.model().tableDisplayName)
tabBar.currentChanged.connect(self.showTabPage)
vboxLayout = QtGui.QVBoxLayout()
vboxLayout.setContentsMargins(0, 0, 0, 0)
vboxLayout.setSpacing(0)
vboxLayout.addWidget(tabBar)
stackLayout = QtGui.QStackedLayout()
stackLayout.setContentsMargins(0, 0, 0, 0)
vboxLayout.addLayout(stackLayout)
map(stackLayout.addWidget, views)
self.setLayout(vboxLayout)
self.stackLayout = stackLayout
def showTabPage(self, index):
self.stackLayout.setCurrentIndex(index)
def model(self):
return self.mapper