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ws_node_init.py
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ws_node_init.py
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# -*- coding: utf-8 -*-
from qgis.gui import (QgsMessageBar)
from PyQt4.QtCore import * # @UnusedWildImport
from PyQt4.QtGui import * # @UnusedWildImport
from qgis.utils import iface
import os.path
import sys
import utils_giswater
from controller import DaoController
def formOpen(dialog, layer, feature):
# Create class to manage Feature Form interaction
global node_dialog
utils_giswater.setDialog(dialog)
node_dialog = NodeDialog(iface, dialog, layer, feature)
initConfig()
def initConfig():
node_dialog.dialog.findChild(QComboBox, "nodecat_id").setVisible(False)
node_dialog.dialog.findChild(QComboBox, "cat_nodetype_id").activated.connect(node_dialog.changeNodeType)
node_dialog.changeNodeType(-1)
nodecat_id = utils_giswater.getSelectedItem("nodecat_id")
utils_giswater.setSelectedItem("nodecat_id_dummy", nodecat_id)
node_dialog.dialog.findChild(QComboBox, "nodecat_id_dummy").activated.connect(node_dialog.changeNodeCat)
node_dialog.dialog.findChild(QComboBox, "epa_type").activated.connect(node_dialog.changeEpaType)
node_dialog.dialog.findChild(QPushButton, "btnAccept").clicked.connect(node_dialog.save)
node_dialog.dialog.findChild(QPushButton, "btnClose").clicked.connect(node_dialog.close)
class NodeDialog():
def __init__(self, iface, dialog, layer, feature):
self.iface = iface
self.dialog = dialog
self.layer = layer
self.feature = feature
self.initConfig()
def initConfig(self):
self.node_id = utils_giswater.getStringValue2("node_id")
self.epa_type = utils_giswater.getSelectedItem("epa_type")
# initialize plugin directory
user_folder = os.path.expanduser("~")
self.plugin_name = 'giswater'
self.plugin_dir = os.path.join(user_folder, '.qgis2/python/plugins/'+self.plugin_name)
# Get config file
setting_file = os.path.join(self.plugin_dir, 'config', self.plugin_name+'.config')
if not os.path.isfile(setting_file):
message = "Config file not found at: "+setting_file
self.iface.messageBar().pushMessage(message, QgsMessageBar.WARNING, 5)
self.close()
return
self.settings = QSettings(setting_file, QSettings.IniFormat)
self.settings.setIniCodec(sys.getfilesystemencoding())
# Get widget controls
self.cbo_cat_nodetype_id = self.dialog.findChild(QComboBox, "cat_nodetype_iddd")
self.cbo_nodecat_id = self.dialog.findChild(QComboBox, "nodecat_id")
self.tab_analysis = self.dialog.findChild(QTabWidget, "tab_analysis")
self.tab_event = self.dialog.findChild(QTabWidget, "tab_event")
# Set controller to handle settings and database connection
# TODO: Try to make only one connection
self.controller = DaoController(self.settings, self.plugin_name)
status = self.controller.set_database_connection()
if not status:
message = self.controller.getLastError()
self.iface.messageBar().pushMessage(message, QgsMessageBar.WARNING, 5)
return
self.schema_name = self.controller.getSchemaName()
self.dao = self.controller.getDao()
# Manage tab visibility
self.setTabsVisibility()
# Manage i18n
self.translateForm()
# Fill combo 'node type' from 'epa_type'
self.fillNodeType()
# Load data from related tables
self.loadData()
# Set layer in editing mode
self.layer.startEditing()
def translateForm(self):
# Get objects of type: QLabel
context_name = 'ws_node'
widget_list = self.dialog.findChildren(QLabel)
for widget in widget_list:
self.translateWidget(context_name, widget)
def translateWidget(self, context_name, widget):
if widget:
widget_name = widget.objectName()
text = utils_giswater.tr(context_name, widget_name)
if text != widget_name:
widget.setText(text)
def loadData(self):
# Tab 'Add. info'
if self.epa_type == 'TANK':
sql = "SELECT vmax, area FROM "+self.schema_name+".man_tank WHERE node_id = "+self.node_id
row = self.dao.get_row(sql)
if row:
utils_giswater.setText("man_tank_vmax", str(row[0]))
utils_giswater.setText("man_tank_area", str(row[1]))
''' Slots '''
def fillNodeType(self):
""" Define and execute query to populate combo 'cat_nodetype_id' """
cat_nodetype_id = utils_giswater.getSelectedItem("cat_nodetype_id")
sql = "SELECT id, man_table, epa_table FROM "+self.schema_name+".arc_type WHERE epa_default = '"+self.epa_type+"' UNION "
sql+= "SELECT id, man_table, epa_table FROM "+self.schema_name+".node_type WHERE epa_default = '"+self.epa_type+"' ORDER BY id"
rows = self.dao.get_rows(sql)
self.cbo_cat_nodetype_id = self.dialog.findChild(QComboBox, "cat_nodetype_id")
utils_giswater.fillComboBox(self.cbo_cat_nodetype_id, rows)
utils_giswater.setSelectedItem('cat_nodetype_id', cat_nodetype_id)
def changeNodeType(self, index):
""" Define and execute query to populate combo 'nodecat_id_dummy' """
cat_nodetype_id = utils_giswater.getSelectedItem("cat_nodetype_id")
sql = "SELECT id FROM "+self.schema_name+".cat_arc WHERE arctype_id = '"+cat_nodetype_id+"' UNION "
sql+= "SELECT id FROM "+self.schema_name+".cat_node WHERE nodetype_id = '"+cat_nodetype_id+"' ORDER BY id"
rows = self.dao.get_rows(sql)
self.cbo_nodecat_id = self.dialog.findChild(QComboBox, "nodecat_id_dummy")
utils_giswater.fillComboBox(self.cbo_nodecat_id, rows, False)
self.changeNodeCat(0)
def changeNodeCat(self, index):
""" Just select item to 'real' combo 'nodecat_id' (that is hidden) """
dummy = utils_giswater.getSelectedItem("nodecat_id_dummy")
utils_giswater.setSelectedItem("nodecat_id", dummy)
def changeEpaType(self, index):
""" Just select item to 'real' combo 'nodecat_id' (that is hidden) """
epa_type = utils_giswater.getSelectedItem("epa_type")
self.save()
self.iface.openFeatureForm(self.layer, self.feature)
def setTabsVisibility(self):
man_visible = False
index_tab = 0
if self.epa_type == 'JUNCTION':
index_tab = 0
if self.epa_type == 'RESERVOIR' or self.epa_type == 'HYDRANT':
index_tab = 1
if self.epa_type == 'TANK':
index_tab = 2
man_visible = True
if self.epa_type == 'PUMP':
index_tab = 3
if self.epa_type == 'VALVE':
index_tab = 4
if self.epa_type == 'SHORTPIPE' or self.epa_type == 'FILTER':
index_tab = 5
if self.epa_type == 'MEASURE INSTRUMENT':
index_tab = 6
# Tab 'Add. info': Manage visibility of these widgets
utils_giswater.setWidgetVisible("label_man_tank_vmax", man_visible)
utils_giswater.setWidgetVisible("label_man_tank_area", man_visible)
utils_giswater.setWidgetVisible("man_tank_vmax", man_visible)
utils_giswater.setWidgetVisible("man_tank_area", man_visible)
# Move 'visible' tab to last position and remove previous ones
self.tab_analysis.tabBar().moveTab(index_tab, 5);
for i in range(0, self.tab_analysis.count() - 1):
self.tab_analysis.removeTab(0)
self.tab_event.tabBar().moveTab(index_tab, 6);
for i in range(0, self.tab_event.count() - 1):
self.tab_event.removeTab(0)
def save(self):
if self.epa_type == 'TANK':
vmax = utils_giswater.getStringValue2("man_tank_vmax")
area = utils_giswater.getStringValue2("man_tank_area")
sql = "UPDATE "+self.schema_name+".man_tank SET vmax = "+str(vmax)+ ", area = "+str(area)
sql+= " WHERE node_id = "+str(self.node_id)
print sql
self.dao.execute_sql(sql)
self.dialog.accept()
self.layer.commitChanges()
self.close()
def close(self):
self.layer.rollBack()
self.dialog.parent().setVisible(False)