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