class BookOrderForm(QScrollArea, Ui_BookOForm):
""" Interface for ordering books """
column = { 'associate':1, 'obs':3, 'total':4, 'paid':5, 'type':7 }
def __init__(self, parent=None):
super(BookOrderForm, self).__init__(parent)
self.setupUi(self)
self._access = statics.access_level
# for currency formatting
self._locale = QLocale()
# had to hardcode these, wouldn't work otherwise:
self.contentsLayout.setAlignment(self.groupBox, QtCore.Qt.AlignTop)
self.contentsLayout.setAlignment(self.groupBox_2, QtCore.Qt.AlignTop)
self.contentsLayout.setAlignment(self.groupBox_3, QtCore.Qt.AlignTop)
self.contentsLayout.setAlignment(self.groupBox_4, QtCore.Qt.AlignTop)
self.log = logging.getLogger('BookOForm')
self.setup_model()
self.setup_fields()
# associate present flag
self._associate_id = None
# book internals
self._book_list = []
self._total = 0.0
# flag to indicate whether there were changes to the fields
self._dirty = False
def is_dirty(self):
return self._dirty
def setup_model(self):
db = Db_Instance("oform_book").get_instance()
if not db.open():
self.log.error(db.lastError().text())
message = unicode("Erro de conexão\n\n""Banco de dados indisponível".decode('utf-8'))
QMessageBox.critical(self, "Seareiros - Livraria", message)
else:
# book order
self._model = QSqlTableModel(self, db=db)
self._model.setTable("order_request")
# book order items
self._items_model = QSqlTableModel(self, db=db)
self._items_model.setTable("book_order_item")
def setup_fields(self):
""" setting up validators and stuff """
# validators
self.edBarcode.setValidator(NumericValidator())
# hiding associate frame and clean button
self.frameAssociate.setVisible(False)
self.btnCleanAssociate.setVisible(False)
# detect changes on edBarcode for dirtiness and completion
self.edBarcode.textChanged.connect(self.check_changes)
self.edBarcode.textChanged.connect(self.check_barcode)
def check_changes(self, txt):
if txt != '':
self._dirty = True
def check_barcode(self, txt):
if len(txt) == self.edBarcode.maxLength():
db = Db_Instance("obook_barcode_search").get_instance()
try:
if db.open():
query = QSqlQuery(db)
query.prepare("SELECT * FROM book WHERE barcode = :barcode")
query.bindValue(":barcode", txt)
query.exec_()
if query.next():
self.add_book_from_record(query.record())
self.edBarcode.clear()
else:
raise RecordNotFoundException
else:
raise DbUnavailableException
except RecordNotFoundException:
message = unicode("Código de barra inválido!\n\n"""
"O código informado não corresponde a nenhum livro cadastrado".decode('utf-8'))
QMessageBox.critical(self, "Seareiros - Livraria", message)
except DbUnavailableException:
self.log.error(db.lastError().text())
message = unicode("Erro de conexão\n\n""Banco de dados indisponível".decode('utf-8'))
QMessageBox.critical(self, "Seareiros - Livraria", message)
self.edBarcode.setFocus()
def submit_data(self):
if len(self._book_list) == 0:
message = unicode("Venda vazia!\n\n"""
"É necessário adicionar um livro antes de concluir uma venda".decode('utf-8'))
QMessageBox.critical(self, "Seareiros - Livraria", message)
self.edBarcode.setFocus()
return False
data = self.extract_input()
# filling a book order
self._model.insertRow(0)
for key,val in data.items():
self._model.setData(self._model.index(0, self.column[key]), val)
order_id = submit_and_get_id(self, self._model, self.log)
if order_id:
# order creation success, placing items
error = False
for item in self._book_list:
book_id = item[0]
book_quantity = item[3]
self._items_model.insertRow(0)
self._items_model.setData(self._items_model.index(0,1), order_id)
self._items_model.setData(self._items_model.index(0,2), book_id)
self._items_model.setData(self._items_model.index(0,3), book_quantity)
ok = self._items_model.submitAll()
if not ok:
error = True
break
if error:
self.log.error(self._items_model.lastError().text())
message = unicode("Erro\n\n""Venda registrada e contabilizada, porém ocorreu um problema e"
" não será possível visualizar seus itens.".decode('utf-8'))
QMessageBox.warning(self, "Seareiros - Livraria", message)
return False
else:
# all went fine
# retrieving some brief info of the order to display at the main window
if 'associate' in data:
desc = "Venda da livraria no valor de R$ %s para %s" % \
(self._locale.toString(data['total'], 'f', 2).replace('.',''), self.lblNickname.text())
else:
desc = "Venda da livraria no valor de R$ %s" % self._locale.toString(data['total'], 'f', 2).replace('.','')
if not log_to_history(self._model.database(), "venda_livraria", order_id, desc):
self.log.error(self._model.lastError().text())
message = unicode("Sucesso!\n\n""Venda concluída.".decode('utf-8'))
QMessageBox.information(self, "Seareiros - Livraria", message)
return True
# failed to insert a row
return False
def clear(self):
""" Globally cleans this form """
self._dirty = False
for lineEdit in self.findChildren(QLineEdit):
lineEdit.clear()
# book
self.clear_table()
self.lblTotal.setText("0,00")
# associate
self.clear_associate()
self.edBarcode.setFocus()
def clear_associate(self):
# resets associate frame
self.lblName.clear()
self.lblNickname.clear()
self._associate_id = None
self.frameAssociate.setVisible(False)
self.btnCleanAssociate.setVisible(False)
# can't allow an order to be paid later without an associate to relate to
self.rdNotPaid.setEnabled(False)
self.rdPaid.setChecked(True)
@QtCore.Slot()
def on_btnSelectAssociate_clicked(self):
associate_dialog = AssociateSelectDialog()
if associate_dialog.exec_() == QDialog.Accepted:
record = associate_dialog.get_record()
self._associate_id = record.value("id")
self.set_associate_info(record.value("fullname"), record.value("nickname"))
self.frameAssociate.setVisible(True)
self.btnCleanAssociate.setVisible(True)
# a registered associate can pay later
self.rdNotPaid.setEnabled(True)
self.edBarcode.setFocus()
@QtCore.Slot()
def on_btnSelectBook_clicked(self):
book_dialog = BookSelectDialog()
if book_dialog.exec_() == QDialog.Accepted:
record = book_dialog.get_record()
self.add_book_from_record(record)
def add_book_from_record(self, record):
book_id = record.value("id")
book_title = record.value("title")
book_price = record.value("price")
book_quantity = 1
book_stock = record.value("stock")
data = [book_id, book_title, book_price, book_quantity, book_stock]
try:
self.add_book(data)
self.refresh_tableBooks()
self.edBarcode.clear()
self.edBarcode.setFocus()
except StockOverflowException:
message = unicode("Estoque Insuficiente!\n\n""A quantidade do item excedeu o estoque".decode('utf-8'))
QMessageBox.critical(self, "Seareiros - Livraria", message)
def set_associate_info(self, fullname, nickname):
self.lblName.setText(fullname)
self.lblNickname.setText(nickname)
@QtCore.Slot()
def on_btnCleanAssociate_clicked(self):
self.clear_associate()
def update_total(self, price, add=True):
if add:
self._total += price
else:
self._total -= price
txt = self._locale.toString(self._total, 'f', 2).replace('.','')
if txt == '0':
txt = txt.replace(txt, "0,00")
self.lblTotal.setText(txt)
@QtCore.Slot()
def on_btnCleanBooks_clicked(self):
self.clear_table()
self._total = 0.0
self.update_total(0.0)
self.edBarcode.clear()
self.edBarcode.setFocus()
def clear_table(self):
self._book_list = []
self.tableBooks.clear()
self.refresh_tableBooks()
def add_book(self, data):
""" adds a book to the list then sort it """
# checking for duplicate
dup_index = [i for i,x in enumerate(self._book_list) if x[0] == data[0]]
if not dup_index:
# not a duplicate
self._book_list.append(data)
else:
# duplicate
idx = dup_index[0]
# increment quantity
new_quantity = self._book_list[idx][3] + 1
stock = self._book_list[idx][4]
if new_quantity > stock:
raise StockOverflowException
else:
self._book_list[idx][3] += 1
self.update_total(data[2], add=True)
# sorts by title
self._book_list.sort(key=operator.itemgetter(1))
def refresh_tableBooks(self):
if len(self._book_list) > 0:
self.tableBooks.setColumnCount(len(self._book_list[0])-1)
col_labels = ["Livro", unicode("Preço (R$)".decode('utf-8')), "Qtd", ""]
self.tableBooks.setHorizontalHeaderLabels(col_labels)
else:
self.tableBooks.setColumnCount(0)
self.tableBooks.setRowCount(len(self._book_list))
for i, row in enumerate(self._book_list):
for j, col in enumerate(row):
if j == 1:
# title
item = QTableWidgetItem(col)
elif j == 2:
# price
item = QTableWidgetItem(self._locale.toString(col, 'f', 2).replace('.',''))
elif j == 3:
# quantity
edQuantity = ReturnKeySpinBox(self)
edQuantity.setMinimum(1)
edQuantity.setMaximum(row[4])
edQuantity.setValue(col)
edQuantity.valueChanged.connect(partial(self.update_quantity, book=row))
self.tableBooks.setCellWidget(i, j-1, edQuantity)
if j in [1,2]:
# ignoring id
self.tableBooks.setItem(i, j-1, item)
# remove button on last column
remove_icon = QIcon(":icons/conn_failed.png")
remove_btn = QPushButton(remove_icon, "")
remove_btn.clicked.connect(partial(self.remove_book, book=row))
self.tableBooks.setCellWidget(i, len(row)-2, remove_btn)
self.tableBooks.resizeColumnsToContents()
self.tableBooks.horizontalHeader().setResizeMode(0, QHeaderView.Stretch)
def remove_book(self, book):
# remove a row based on its value
subtract_value = book[2] * book[3]
self._book_list.remove(book)
self.refresh_tableBooks()
self.update_total(subtract_value, add=False)
def update_quantity(self, i, book):
new_value = i
old_value = book[3]
if old_value == new_value:
# this happens sometimes when refreshing the table
return
price = book[1]
index = self._book_list.index(book)
book[3] = new_value
self._book_list[index] = book
if new_value > old_value:
# incremented
self.update_total((new_value - old_value)*book[2], add=True)
elif new_value < old_value:
# decremented
self.update_total((old_value - new_value)*book[2], add=False)
def extract_input(self):
data = {}
if self._associate_id:
data['associate'] = self._associate_id
data['obs'] = self.edObs.toPlainText()
data['total'] = self._total
if self.rdPaid.isChecked():
data['paid'] = True
else:
data['paid'] = False
data['type'] = constants.ORDER_BOOK
return data
class ProductOrderForm(QScrollArea, Ui_ProductOForm):
""" Interface for ordering products """
column = {"associate": 1, "obs": 3, "total": 4, "paid": 5, "type": 7}
def __init__(self, parent=None):
super(ProductOrderForm, self).__init__(parent)
self.setupUi(self)
# had to subclass this spinbox to support return grabbing
self.edQuantity = ReturnKeySpinBox(self)
self.edQuantityHolder.addWidget(self.edQuantity)
self._access = statics.access_level
# for currency formatting
self._locale = QLocale()
# had to hardcode these, wouldn't work otherwise:
self.contentsLayout.setAlignment(self.groupBox, QtCore.Qt.AlignTop)
self.contentsLayout.setAlignment(self.groupBox_2, QtCore.Qt.AlignTop)
self.contentsLayout.setAlignment(self.groupBox_3, QtCore.Qt.AlignTop)
self.contentsLayout.setAlignment(self.groupBox_4, QtCore.Qt.AlignTop)
self.log = logging.getLogger("ProductOForm")
self.setup_model()
self.setup_fields()
# associate present flag
self._associate_id = None
# product internals
self._product_list = []
self._total = 0.0
# flag to indicate whether there were changes to the fields
self._dirty = False
def is_dirty(self):
return self._dirty
def setup_model(self):
db = Db_Instance("oform_product").get_instance()
if not db.open():
self.log.error(db.lastError().text())
message = unicode("Erro de conexão\n\n" "Banco de dados indisponível".decode("utf-8"))
QMessageBox.critical(self, "Seareiros - Vendas do Bazar", message)
else:
# product order
self._model = QSqlTableModel(self, db=db)
self._model.setTable("order_request")
# product order items
self._items_model = QSqlTableModel(self, db=db)
self._items_model.setTable("product_order_item")
def setup_fields(self):
""" setting up validators and stuff """
# validators
self.edProductName.setValidator(UppercaseValidator())
self.edPrice.setValidator(CurrencyValidator(self.edPrice))
# hiding associate frame and clean button
self.frameAssociate.setVisible(False)
self.btnCleanAssociate.setVisible(False)
# connecting return key to tab
for lineEdit in self.findChildren(QLineEdit):
# qspinbox has a C++ originated qlineedit "hidden" in it, we don't wanna mess with that
if lineEdit.objectName() != "qt_spinbox_lineedit":
lineEdit.returnPressed.connect(lineEdit.focusNextChild)
# detect changes on line edits
lineEdit.textChanged.connect(self.check_changes)
self.edQuantity.setMinimum(1)
self.edQuantity.setMaximum(2000)
self.edQuantity.setValue(1)
# fixing tab order
self.setTabOrder(self.edPrice, self.edQuantity)
self.setTabOrder(self.edQuantity, self.btnAddProduct)
def check_changes(self, txt):
if txt != "":
self._dirty = True
def submit_data(self):
# I should block empty orders I guess
if len(self._product_list) == 0:
message = unicode(
"Venda vazia!\n\n" "" "É necessário adicionar um produto antes de concluir uma venda".decode("utf-8")
)
QMessageBox.critical(self, "Seareiros - Vendas do Bazar", message)
self.edProductName.setFocus()
return False
data = self.extract_input()
# filling a product order
self._model.insertRow(0)
for key, val in data.items():
self._model.setData(self._model.index(0, self.column[key]), val)
order_id = submit_and_get_id(self, self._model, self.log)
if order_id:
# order creation success, placing items
error = False
for item in self._product_list:
product_name = item[0]
product_price = item[1]
product_quantity = item[2]
self._items_model.insertRow(0)
self._items_model.setData(self._items_model.index(0, 1), order_id)
self._items_model.setData(self._items_model.index(0, 2), product_name)
self._items_model.setData(self._items_model.index(0, 3), product_price)
self._items_model.setData(self._items_model.index(0, 4), product_quantity)
ok = self._items_model.submitAll()
if not ok:
error = True
break
if error:
self.log.error(self._items_model.lastError().text())
message = unicode(
"Erro\n\n"
"Venda registrada e contabilizada, porém ocorreu um problema e"
" não será possível visualizar seus itens.".decode("utf-8")
)
QMessageBox.warning(self, "Seareiros - Vendas do Bazar", message)
return False
else:
# all went fine
# retrieving some brief info of the order to display at the main window
if "associate" in data:
desc = "Venda do bazar no valor de R$ %s para %s" % (
self._locale.toString(data["total"], "f", 2).replace(".", ""),
self.lblNickname.text(),
)
else:
desc = "Venda do bazar no valor de R$ %s" % self._locale.toString(data["total"], "f", 2).replace(
".", ""
)
if not log_to_history(self._model.database(), "venda_bazar", order_id, desc):
self.log.error(self._model.lastError().text())
message = unicode("Sucesso!\n\n" "Venda concluída.".decode("utf-8"))
QMessageBox.information(self, "Seareiros - Vendas do Bazar", message)
return True
# failed to insert a row
return False
def clear(self):
""" Globally cleans this form """
self._dirty = False
for lineEdit in self.findChildren(QLineEdit):
lineEdit.clear()
# product
# edProduct is a QLineEdit so... already clean
self.clear_table()
self.lblTotal.setText("0,00")
self.edQuantity.setValue(1)
# associate
self.clear_associate()
self.edProductName.setFocus()
def clear_associate(self):
# resets associate frame
self.lblName.clear()
self.lblNickname.clear()
self._associate_id = None
self.frameAssociate.setVisible(False)
self.btnCleanAssociate.setVisible(False)
# can't allow an order to be paid later without an associate to relate to
self.rdNotPaid.setEnabled(False)
self.rdPaid.setChecked(True)
@QtCore.Slot()
def on_btnAddProduct_clicked(self):
txt = self.edProductName.text()
price = self._locale.toDouble(self.edPrice.text())[0]
quantity = self.edQuantity.value()
if txt != "":
data = [txt, price, quantity]
self.add_product(data)
self.update_total(price * quantity)
self.refresh_tableProducts()
# cleaning product related input
self.edProductName.clear()
self.edPrice.setText("0,00")
self.edQuantity.setValue(1)
self.edProductName.setFocus()
@QtCore.Slot()
def on_btnSelectAssociate_clicked(self):
associate_dialog = AssociateSelectDialog()
if associate_dialog.exec_() == QDialog.Accepted:
record = associate_dialog.get_record()
self._associate_id = record.value("id")
self.set_associate_info(record.value("fullname"), record.value("nickname"))
self.frameAssociate.setVisible(True)
self.btnCleanAssociate.setVisible(True)
# a registered associate can pay later
self.rdNotPaid.setEnabled(True)
self.edProductName.setFocus()
def set_associate_info(self, fullname, nickname):
self.lblName.setText(fullname)
self.lblNickname.setText(nickname)
@QtCore.Slot()
def on_btnCleanAssociate_clicked(self):
self.clear_associate()
def update_total(self, price, add=True):
if add:
self._total += price
else:
self._total -= price
txt = self._locale.toString(self._total, "f", 2).replace(".", "")
if txt == "0":
txt = txt.replace(txt, "0,00")
self.lblTotal.setText(txt)
@QtCore.Slot()
def on_btnCleanProducts_clicked(self):
self.clear_table()
self._total = 0.0
self.update_total(0.0)
self.edPrice.setText("0,00")
self.edQuantity.setValue(1)
self.edProductName.clear()
self.edProductName.setFocus()
def clear_table(self):
self._product_list = []
self.tableProducts.clear()
self.refresh_tableProducts()
def add_product(self, data):
""" adds a product to the list then sort it """
self._product_list.append(data)
# sorts by name
self._product_list.sort(key=operator.itemgetter(0))
def refresh_tableProducts(self):
if len(self._product_list) > 0:
self.tableProducts.setColumnCount(len(self._product_list[0]) + 1)
col_labels = ["Produto", unicode("Preço (R$)".decode("utf-8")), "Qtd", ""]
self.tableProducts.setHorizontalHeaderLabels(col_labels)
else:
self.tableProducts.setColumnCount(0)
self.tableProducts.setRowCount(len(self._product_list))
for i, row in enumerate(self._product_list):
for j, col in enumerate(row):
if j == 1:
# product price
item = QTableWidgetItem(self._locale.toString(col, "f", 2).replace(".", ""))
elif j == 2:
# product quantity
item = QTableWidgetItem(str(col))
else:
item = QTableWidgetItem(col)
self.tableProducts.setItem(i, j, item)
# icon to remove rows individually
remove_icon = QIcon(":icons/conn_failed.png")
remove_btn = QPushButton(remove_icon, "")
remove_btn.clicked.connect(partial(self.remove_product, product=row))
self.tableProducts.setCellWidget(i, len(row), remove_btn)
self.tableProducts.resizeColumnsToContents()
self.tableProducts.horizontalHeader().setResizeMode(0, QHeaderView.Stretch)
def remove_product(self, product):
# remove a row based on its value
subtract_value = product[1] * product[2]
self._product_list.remove(product)
self.refresh_tableProducts()
self.update_total(subtract_value, add=False)
def extract_input(self):
data = {}
if self._associate_id:
data["associate"] = self._associate_id
data["obs"] = self.edObs.toPlainText()
data["total"] = self._total
if self.rdPaid.isChecked():
data["paid"] = True
else:
data["paid"] = False
data["type"] = constants.ORDER_PRODUCT
return data
