100 lines
3.3 KiB
Python
100 lines
3.3 KiB
Python
import sqlite3
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import re
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def migrate(db, habitlist, events):
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c = db.cursor()
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habits = simple_habits_list(c, habitlist)
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repetitions = extract_all_repetitions(habits, events)
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for rep in repetitions:
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add_to_database(c, rep["id"], rep["timestamp"])
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def extract_all_repetitions(habits, events):
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"""Return list of all repetitions found of habits in events passed in.
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Parameters:
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habits (list): Collection of habits, with minimum necessary fields description and id.
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events (list): Collection of events, with minimum necessary field end.
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Returns:
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repetitions (list): Collection of events transformed into Loop repetitions.
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Contains fields id, timestamp, value (for ranges).
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"""
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repetitions = []
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for event in events:
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text = event["note"]
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tags = extract_tags(text)
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for habit in habits:
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for tag in tags:
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if habit["description"] in tag[0]:
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print(f"found event: {habit['name']} in {text} at {event['end']}")
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repetitions.append({"id": habit["id"], "timestamp": event["end"]})
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return repetitions
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def extract_tags(text, tagmarker="#"):
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"""Return lists of tuples of all event tags found in text.
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Parameters:
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text (str): The text to search through.
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tagmarker (str): Optional character marking beginning of tag, defaults to '#'.
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Returns:
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tags (list): List of tuples in the form [('tag', '3'), ('anothertag', '')].
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"""
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found_tags = re.findall(rf"{tagmarker}(\w+)(?:\((\d+)\))?", text)
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return found_tags
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def simple_habits_list(c, habitlist):
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"""Return simplified collection of habits, only carrying name, tag, id.
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Parameters:
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c (sqlite.db.cursor): SQL cursor of database to query.
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habitlist (list): Full habit collection to return a simplified view of.
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Returns:
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habitlist (list): Simple habitlist, habit name, tag, and id.
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Copy of original, changes do not affect original.
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"""
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simple = []
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for h in habitlist:
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simple.append(
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{
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"name": h["name"],
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"description": h["description"],
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"id": fetch_habit_id(c, h["uuid"]),
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}
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)
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return simple
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def fetch_habit_id(c, uuid):
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"""Return sqlite internal id for habit with uuid.
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Parameters:
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c (sqlite.db.cursor): SQL cursor of database to query.
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uuid (str): Unique id of habit to query for.
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Returns:
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id (int): SQLite internal id for habit queried for.
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"""
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c.execute("select id from Habits where uuid = ?", ([uuid]))
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id = c.fetchone()
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if id is not None:
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return id[0]
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# does not do:
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# ranges in habits (should check for habit being range, then taking #habit(3) number into account)
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# also, range trackers: multiply value by 1,000
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# non-range habits but still #habit(3) number included, adding multiple?
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def add_to_database(cursor, habit_id, timestamp, value=2):
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try:
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cursor.execute(
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"""
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INSERT INTO
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Repetitions(id, habit, timestamp, value)
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VALUES (NULL, ?, ?, ?)
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""",
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(habit_id, timestamp, value),
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)
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except sqlite3.IntegrityError:
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# TODO better error handling
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print(f"fail to register {habit_id}: timestamp {timestamp} not unique")
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pass
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