113 lines
2.6 KiB
Python
113 lines
2.6 KiB
Python
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import sqlite3
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import os
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from datetime import datetime
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class DataStore:
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def __init__(self, dbfile):
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if not os.path.exists(dbfile):
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self.createdb(dbfile)
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self.conn = sqlite3.connect(dbfile)
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def __del__(self):
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self.conn.close()
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def createdb(self, dbfile):
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conn = sqlite3.connect(dbfile)
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c = conn.cursor()
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c.execute('''
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CREATE TABLE projects (
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id INTEGER PRIMARY KEY,
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name TEXT
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)''')
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c.execute('''
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CREATE TABLE tasks (
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id INTEGER PRIMARY KEY,
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projectid INTEGER,
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name TEXT,
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UNIQUE (projectid, name),
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FOREIGN KEY (projectid) REFERENCES projects(id)
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)''')
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c.execute('''
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CREATE TABLE hours (
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date TEXT,
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taskid INTEGER,
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seconds INTEGER,
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PRIMARY KEY (date, taskid),
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FOREIGN KEY (taskid) REFERENCES tasks(id)
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)''')
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conn.commit()
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c.close()
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conn.close()
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def getProjects(self):
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c = self.conn.cursor()
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c.execute('''
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SELECT id, name
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FROM projects
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''')
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projects = {}
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for row in c:
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projects[row[0]] = row[1]
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c.close()
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self.conn.commit()
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return projects
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def getTasks(self, projectid):
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c = self.conn.cursor()
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c.execute('''
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SELECT id, name
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FROM tasks
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WHERE projectid = ?
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''', (projectid,))
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tasks = {}
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for row in c:
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tasks[row[0]] = row[1]
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c.close()
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self.conn.commit()
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return tasks
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def createProject(self, projectname):
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c = self.conn.cursor()
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projects = self.getProjects()
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if projectname in projects.values():
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return False
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nextid = self.getNextId('projects')
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c.execute('''
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INSERT INTO projects (id, name)
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VALUES (?, ?)
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''', (nextid, projectname))
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c.close()
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self.conn.commit()
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return True
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def createTask(self, projectid, taskname):
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c = self.conn.cursor()
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tasks = self.getTasks(projectid)
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if taskname in tasks.values():
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return False
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projects = self.getProjects()
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if not projectid in projects:
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return False
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nextid = self.getNextId('tasks')
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c.execute('''
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INSERT INTO tasks (id, projectid, name)
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VALUES (?, ?, ?)
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''', (nextid, projectid, taskname))
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c.close()
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self.conn.commit()
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return True
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def getNextId(self, table):
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c = self.conn.cursor()
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nextid = 1
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c.execute('''
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SELECT MAX(id)
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FROM %s
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''' % table)
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for row in c:
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if row[0]:
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nextid = row[0] + 1
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c.close()
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return nextid
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