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import os
import sys
from PyQt5.QtSql import QSqlDatabase, QSqlQuery
Globals = __import__("globals")
from group import Group
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()
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()))
database.close()
def insertGroup(new_group):
"""
Save groups and entries 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
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