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import sys
from PyQt5.QtCore import QDate
from PyQt5.QtWidgets import QApplication, QDialog, QHBoxLayout, QPushButton, QScrollArea, QVBoxLayout
from assignment_list_pyqt.config import Config
from assignment_list_pyqt.rule import Rule
import assignment_list_pyqt.db_sqlite as DB
import assignment_list_pyqt.globals as Globals
class RulesDialog(QDialog):
"""
Show the list of rules associated with an entry
"""
def __init__(self, entry_id):
super().__init__()
self.entry_id = entry_id
# class globals
self.config = Config()
self.relevant_rules = self.getRelevantRules()
self.initializeUI()
def initializeUI(self):
self.resize(500, 320)
self.setWindowTitle("Rules")
self.displayWidgets()
self.exec()
def displayWidgets(self):
main_layout = QVBoxLayout()
main_layout_scroll_area = QScrollArea()
main_layout_scroll_area.setWidgetResizable(True)
main_layout_scroll_area.setLayout(main_layout)
self.rules_layout = QVBoxLayout()
self.drawRules()
main_layout.addLayout(self.rules_layout)
main_layout.addStretch()
# Create Close and Save buttons
buttons_hbox = QHBoxLayout()
buttons_hbox.addStretch()
close_button = QPushButton("Close", self)
close_button.clicked.connect(self.close)
buttons_hbox.addWidget(close_button)
save_button = QPushButton("Save", self)
save_button.clicked.connect(self.save)
buttons_hbox.addWidget(save_button)
main_layout.addLayout(buttons_hbox)
self.setLayout(main_layout)
def drawRules(self):
# Remove all children from layout
def recursiveClear(layout):
while layout.count():
child = layout.takeAt(0)
if child.widget():
child.widget().deleteLater()
elif child.layout():
recursiveClear(child)
recursiveClear(self.rules_layout)
# Draw each rule
self.r_layouts_dict = {} # Use to help update things in the save() function
for r in self.relevant_rules:
r_layout = r.buildLayout()
self.r_layouts_dict[r.id] = r_layout
del_button = QPushButton("Delete", self)
del_button.clicked.connect((lambda id: lambda: self.deleteRule(id))(r.id))
r_layout.addWidget(del_button)
self.rules_layout.addLayout(r_layout)
# Draw a button to add rules
rules_buttons_hbox = QHBoxLayout()
add_rule_button = QPushButton("Add Rule", self)
add_rule_button.clicked.connect(self.addRule)
rules_buttons_hbox.addWidget(add_rule_button)
rules_buttons_hbox.addStretch()
self.rules_layout.addLayout(rules_buttons_hbox)
def addRule(self):
self.apply()
new_rule = Rule(0, self.entry_id, "before", QDate.currentDate())
new_rule_id = DB.insertRule(new_rule)
new_rule.id = new_rule_id
Globals.rules.append(new_rule)
self.relevant_rules = self.getRelevantRules()
self.drawRules()
def deleteRule(self, rule_id):
DB.removeRule(rule_id)
Globals.rules = list(filter(lambda r: r.id != rule_id, Globals.rules))
self.relevant_rules = self.getRelevantRules()
self.drawRules()
def getRelevantRules(self):
return list(filter(lambda r: r.entry_id == self.entry_id, Globals.rules))
def apply(self):
for id, layout in self.r_layouts_dict.items():
updated_rule = Rule(
id,
self.entry_id,
layout.itemAt(0).widget().currentText(),
layout.itemAt(1).widget().date(),
layout.itemAt(3).widget().text(),
layout.itemAt(4).widget().text())
DB.updateRule(updated_rule)
Globals.rules = list(filter(lambda r: r.id != id, Globals.rules))
Globals.rules.append(updated_rule)
def save(self):
"""
Save any existing rules. Added rules are automatically saved,
but changing rules is not, hence the need for a manual save
"""
self.apply()
self.done(1)
if __name__ == "__main__":
app = QApplication(sys.argv)
window = RulesDialog()
sys.exit(app.exec_())
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