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# -*- coding: utf-8 -*-
#
# PartMgr GUI - Price fetching
#
# Copyright 2015 Michael Buesch <m@bues.ch>
#
# 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.
#
# This program 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 this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
from partmgr.core.database import *
from partmgr.core.parameter import *
from partmgr.pricefetch import *
from partmgr.gui.util import *
class PriceFetchDialog(QDialog):
def __init__(self, db, parent=None):
QDialog.__init__(self, parent)
self.setLayout(QGridLayout())
self.setWindowTitle("Parts manager - Price fetcher")
self.db = db
self.fetchMissingRadio = QRadioButton("Set &missing prices only", self)
self.layout().addWidget(self.fetchMissingRadio, 0, 0, 1, 4)
self.updateAllRadio = QRadioButton("Update &all prices", self)
self.layout().addWidget(self.updateAllRadio, 1, 0, 1, 4)
self.fetchButton = QPushButton("&Fetch prices from supplier...", self)
self.layout().addWidget(self.fetchButton, 0, 3, 2, 1)
self.table = QTableWidget(self)
self.layout().addWidget(self.table, 2, 0, 1, 4)
self.resultLine = QLabel(self)
self.layout().addWidget(self.resultLine, 3, 0, 1, 3)
self.statusLine = QLabel(self)
self.layout().addWidget(self.statusLine, 4, 0, 1, 3)
self.stopButton = QPushButton("&Stop", self)
self.stopButton.hide()
self.layout().addWidget(self.stopButton, 3, 3, 2, 1)
self.closeButton = QPushButton("&Close", self)
self.layout().addWidget(self.closeButton, 5, 3)
self.table.itemPressed.connect(self.__tabItemClicked)
self.fetchMissingRadio.toggled.connect(self.__rebuildTable)
self.updateAllRadio.toggled.connect(self.__rebuildTable)
self.fetchButton.released.connect(self.__fetch)
self.stopButton.pressed.connect(self.__stop)
self.closeButton.released.connect(self.accept)
self.fetchMissingRadio.setChecked(True)
self.resize(850, 600)
def __doFetch(self):
self.resultLine.clear()
self.statusLine.setText("Preparing to fetch prices...")
QApplication.processEvents(QEventLoop.AllEvents |
QEventLoop.ExcludeUserInputEvents,
250)
# Filter the table and build a dict of lists.
toFetch = {}
for tableRow in range(self.table.rowCount()):
tableItem = self.table.item(tableRow, 0)
origin = self.db.getOrigin(tableItem.data(Qt.UserRole))
if not origin:
continue
orderCode = origin.getOrderCode()
if not orderCode.strip():
continue
supplier = origin.getSupplier()
if not supplier:
continue
supplierName = supplier.getName()
if not supplierName.strip():
continue
toFetch.setdefault(supplierName, []).append(
(tableItem, orderCode))
def relax(*args):
QApplication.processEvents(QEventLoop.AllEvents, 250)
# Fetch the prices.
for supplierName in sorted(toFetch):
try:
fetcherCls = PriceFetcher.get(supplierName)
if not fetcherCls:
continue
fetcherCls._relax = relax
fetcher = fetcherCls()
except PriceFetcher.Error as e:
continue
class Count(object):
count = 0
def preCallback(orderCode, cnt):
tableItem, orderCode = toFetch[supplierName][cnt.count]
self.statusLine.setText("Fetching '%s' from %s..." % (
orderCode, supplierName))
relax()
def postCallback(orderCode, cnt):
cnt.count = cnt.count + 1
orderCodes = (orderCode
for tableRow, orderCode in toFetch[supplierName])
cnt = Count()
for priceResult in fetcher.getPrices(orderCodes,
preCallback = preCallback,
postCallback = postCallback,
callbackData = cnt):
tableItem, orderCode = toFetch[supplierName][cnt.count]
origin = self.db.getOrigin(tableItem.data(Qt.UserRole))
self.__setPriceResult(supplierName, tableItem, orderCode,
origin, priceResult)
relax()
if self.__stopRequested:
break
self.resultLine.clear()
self.statusLine.setText("Aborted." if self.__stopRequested else "Done.")
def __setPriceResult(self, supplierName, tableItem,
orderCode, origin, priceResult):
requiredCurrency = self.db.getGlobalParameter("currency").getDataInt()
requiredCurrencyStr = Param_Currency.CURRNAMES[requiredCurrency][0]
if priceResult.status != priceResult.FOUND:
text = "Did not find '%s' on %s." % (\
orderCode, supplierName)
self.resultLine.setText(text)
print("Price fetch error: %s" % text)
return
if priceResult.currency != requiredCurrency:
text = "Got '%s' from %s, "\
"but it has the wrong currency." % (\
orderCode, supplierName)
self.resultLine.setText(text)
print("Price fetch error: %s" % text)
return
priceStr = "%.2f %s" % (priceResult.price,
requiredCurrencyStr)
self.resultLine.setText("Successfully fetched '%s' from %s: %s" % (
orderCode, supplierName, priceStr))
origin.setPrice(priceResult.price)
self.table.setItem(tableItem.row(), 4,
self.__tabItem(priceStr, origin))
def __setUiEnabled(self, enable):
self.fetchMissingRadio.setEnabled(enable)
self.updateAllRadio.setEnabled(enable)
self.fetchButton.setEnabled(enable)
self.closeButton.setEnabled(enable)
def __fetch(self):
self.__rebuildTable()
try:
self.__setUiEnabled(False)
self.__stopRequested = False
self.stopButton.show()
self.__doFetch()
except PriceFetcher.Error as e:
QMessageBox.critical(self,
"Price fetching failed",
"Price fetching failed:\n%s" % str(e))
finally:
self.__setUiEnabled(True)
self.stopButton.hide()
def __stop(self):
self.__stopRequested = True
self.stopButton.hide()
self.statusLine.setText("Stopping...")
QApplication.processEvents(QEventLoop.AllEvents, 250)
def __tabItem(self, text, origin):
item = QTableWidgetItem(text, QTableWidgetItem.UserType)
item.setFlags(Qt.ItemIsSelectable |\
Qt.ItemIsEnabled)
item.setData(Qt.UserRole, origin.getId())
return item
def __rebuildTable(self):
if self.fetchMissingRadio.isChecked():
stockItems = self.db.getStockItemsWithMissingPrice()
elif self.updateAllRadio.isChecked():
stockItems = self.db.getAllStockItems()
else:
assert(0)
self.table.setSortingEnabled(False)
self.table.clear()
self.table.setRowCount(0)
columns = (("Stock item", 250), ("Supplier", 120),
("Order code", 160),
("Old price", 100), ("New price", 100))
self.table.setColumnCount(len(columns))
self.table.setHorizontalHeaderLabels(tuple(l[0] for l in columns))
for i, (colName, colWidth) in enumerate(columns):
self.table.setColumnWidth(i, colWidth)
i = 0
for stockItem in stockItems:
for origin in stockItem.getOrigins():
self.table.setRowCount(self.table.rowCount() + 1)
stockItemName = stockItem.getName()
supplier = origin.getSupplier()
supplierName = supplier.getName() if supplier else ""
orderCode = origin.getOrderCode()
currency = self.db.getGlobalParameter("currency")
currency = Param_Currency.CURRNAMES[currency.getDataInt()][0]
price = origin.getPrice()
price = ("%.2f %s" % (price, currency))\
if price else "<none>"
self.table.setItem(i, 0,
self.__tabItem(stockItemName, origin))
self.table.setItem(i, 1,
self.__tabItem(supplierName, origin))
self.table.setItem(i, 2,
self.__tabItem(orderCode, origin))
self.table.setItem(i, 3,
self.__tabItem(price, origin))
i += 1
self.table.setSortingEnabled(True)
def __tabItemClicked(self, item):
if not item:
return
mouseButtons = QApplication.mouseButtons()
if mouseButtons & Qt.RightButton:
menu = QMenu()
menu.addAction("Copy",
lambda text = item.text():
copyStrToClipboard(text))
menu.exec_(QCursor.pos())
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