75 lines
2.5 KiB
Python
75 lines
2.5 KiB
Python
import sqlite3
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def create_database(name):
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"""create a database connection to the SQLite database
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specified by db_file
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:param db_file: database file
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:return: Connection object or None
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"""
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conn = None
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try:
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conn = sqlite3.connect(name)
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return conn
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except sqlite3.Error as e:
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print(e)
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return conn
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def create_tables(db):
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c = db.cursor()
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c.execute(
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""" CREATE TABLE IF NOT EXISTS Habits (
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id integer PRIMARY KEY AUTOINCREMENT,
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archived integer,
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color integer,
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description text,
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freq_den integer,
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freq_num integer,
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highlight integer,
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name text,
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position integer,
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reminder_hour integer,
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reminder_min integer,
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reminder_days integer NOT NULL DEFAULT 127,
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type integer NOT NULL DEFAULT 0,
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target_type integer NOT NULL DEFAULT 0,
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target_value real NOT NULL DEFAULT 0,
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unit text NOT NULL DEFAULT "",
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question text,
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uuid text
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); """
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)
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c.execute(
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""" CREATE TABLE IF NOT EXISTS Repetitions (
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id integer PRIMARY KEY AUTOINCREMENT,
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habit integer NOT NULL REFERENCES Habits(id),
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timestamp integer NOT NULL,
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value integer NOT NULL
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); """
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)
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def create_constraints(db):
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c = db.cursor()
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c.execute(
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""" CREATE UNIQUE INDEX IF NOT EXISTS idx_repetitions_habit_timestamp
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on Repetitions( habit, timestamp);
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"""
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)
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def create_pragma(db):
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c = db.cursor()
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c.execute(""" PRAGMA user_version = 24; """)
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c.execute(""" PRAGMA schema_version = 30; """)
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def migrate(name):
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db = create_database(name)
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create_tables(db)
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create_constraints(db)
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create_pragma(db)
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return db
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