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import os
import sys
from time import strptime
from PyQt5.QtCore import QDate
from PyQt5.QtSql import QSqlDatabase, QSqlQuery
Globals = __import__("globals")
from group import Group
from entry import Entry
def initDB():
"""
Check for existing database. If it doesn't exist, build it
"""
if not os.path.exists(Globals.db_path):
createTables()
loadFromTables()
def createTables():
"""
Create database at a specified Globals.db_path
"""
database = QSqlDatabase.addDatabase("QSQLITE") # SQlite version 3
database.setDatabaseName(Globals.db_path)
if not database.open():
print("Unable to open data source file.")
sys.exit(1) # Error out. TODO consider throwing a dialog instead
query = QSqlQuery()
# Erase database contents so that we don't have duplicates
query.exec_("DROP TABLE groups")
query.exec_("DROP TABLE entries")
query.exec_("""
CREATE TABLE groups (
id INTEGER PRIMARY KEY AUTOINCREMENT UNIQUE NOT NULL,
name VARCHAR(255) NOT NULL,
column TINYINT(1) DEFAULT FALSE,
link VARCHAR(255) NOT NULL,
hidden TINYINT(1) DEFAULT FALSE
)
""")
query.exec_("""
CREATE TABLE entries (
id INTEGER PRIMARY KEY AUTOINCREMENT UNIQUE NOT NULL,
parent_id REFERENCES groups (id),
description VARCHAR(255) NOT NULL,
due_date TEXT DEFAULT NULL,
alt_due_date VARCHAR(255) DEFAULT NULL,
link VARCHAR(255) DEFAULT NULL,
done TINYINT(1) DEFAULT FALSE,
hidden TINYINT(1) DEFAULT FALSE
)
""")
database.close()
def loadFromTables():
"""
Load groups and entries into global variables
"""
database = QSqlDatabase.addDatabase("QSQLITE") # SQlite version 3
database.setDatabaseName(Globals.db_path)
if not database.open():
print("Unable to open data source file.")
sys.exit(1) # Error out. TODO consider throwing a dialog instead
query = QSqlQuery()
# Load groups
query.exec_("SELECT * FROM groups")
while query.next():
record = query.record()
Globals.groups.append(
Group(
record.field("id").value(),
record.field("name").value(),
record.field("column").value(),
record.field("link").value(),
record.field("hidden").value()))
# Load entries
query.exec_("SELECT * FROM entries")
while query.next():
record = query.record()
due_date_struct = strptime(record.field("due_date").value(), "%Y-%m-%d")
Globals.entries.append(
Entry(
record.field("id").value(),
record.field("parent_id").value(),
record.field("description").value(),
QDate(due_date_struct.tm_year, due_date_struct.tm_mon, due_date_struct.tm_mday),
record.field("alt_due_date").value(),
record.field("link").value(),
record.field("done").value(),
record.field("hidden").value()))
database.close()
def insertGroup(new_group):
"""
Insert group to the database at Globals.db_path
"""
output = -1
database = QSqlDatabase.addDatabase("QSQLITE") # SQlite version 3
database.setDatabaseName(Globals.db_path)
if not database.open():
print("Unable to open data source file.")
sys.exit(1) # Error out. TODO consider throwing a dialog instead
query = QSqlQuery()
query.prepare("""
INSERT INTO groups (name, column, link) VALUES (?, ?, ?)
""")
query.addBindValue(new_group.name)
query.addBindValue(new_group.column)
query.addBindValue(new_group.link)
query.exec_()
output = query.lastInsertId()
database.close()
return output
def insertEntry(new_entry):
"""
Insert entry to the database at Globals.db_path
"""
output = -1
database = QSqlDatabase.addDatabase("QSQLITE") # SQlite version 3
database.setDatabaseName(Globals.db_path)
if not database.open():
print("Unable to open data source file.")
sys.exit(1) # Error out. TODO consider throwing a dialog instead
query = QSqlQuery()
query.prepare("""
INSERT INTO entries (parent_id, description, due_date, alt_due_date, link) VALUES (:p_id, :desc, :due, :alt_due, :link)
""")
query.bindValue(":p_id", new_entry.parent_id)
query.bindValue(":desc", new_entry.desc)
query.bindValue(":due", "{0}-{1}-{2}".format(
new_entry.due.year(),
new_entry.due.month(),
new_entry.due.day()))
query.bindValue(":alt_due", new_entry.due_alt)
query.bindValue(":link", new_entry.link)
success = query.exec_()
# DEBUG
#print(query.lastError().text())
#print(query.boundValues())
#if success:
# print("Query succeeded")
#else:
# print("Query failed")
output = query.lastInsertId()
database.close()
return output
def removeGroup(group_id):
"""
Remove a group by id from the database
(actually set hidden to true, don't permanently delete it)
"""
database = QSqlDatabase.addDatabase("QSQLITE") # SQlite version 3
database.setDatabaseName(Globals.db_path)
if not database.open():
print("Unable to open data source file.")
sys.exit(1) # Error out. TODO consider throwing a dialog instead
query = QSqlQuery()
# First, set entries to hidden
query.prepare("""
UPDATE entries SET hidden = 1 WHERE parent_id = ?
""")
query.addBindValue(group_id)
query.exec_()
# Now, set the group to hidden
query.prepare("""
UPDATE groups SET hidden = 1 WHERE id = ?
""")
query.addBindValue(group_id)
query.exec_()
database.close()
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