59 lines
2 KiB
Python
59 lines
2 KiB
Python
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import json
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from pathlib import Path
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from typing import Dict, Tuple, Union # I have just python3.8 here :(
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def parse(filename: Union[str, Path]) -> Tuple[
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Dict[int, str],
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Dict[int, int],
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Dict[int, str],
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Dict[int, Dict[Tuple[int, str], int]]
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]:
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"""Parse a JSON export from pretix.
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:param filename: filename of the JSON export to parse.
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:returns: Four mappings:
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* item_id to item name
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* item_id to order count of this item
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* question_id to question identifier
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* question_id to stats for this question, which identifies an answer by its item_id and actual answer.
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The stats map this identifier to number of occurrences
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"""
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with open(filename, 'r', encoding='utf8') as f:
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data = json.load(f)['event']
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items = {i['id']: i['name'] for i in data['items']}
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count_items = {id_: 0 for id_ in items}
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questions = {q['id']: q['identifier'] for q in data['questions']}
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quest_answers = {id_: {} for id_ in questions}
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for order in data['orders']:
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for position in order['positions']:
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item_id = position['item']
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count_items[item_id] += 1
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for answer in position['answers']:
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quest_id = answer['question']
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answer_key = (item_id, answer['answer'])
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quest_answers[quest_id][answer_key] = (
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quest_answers[quest_id].get(answer_key, 0) + 1
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)
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return items, count_items, questions, quest_answers
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def wiki_stats(items: Dict[int, str], count_items: Dict[int, int], questions: Dict[int, str],
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quest_answers: Dict[int, Dict[Tuple[int, str], int]]) -> str:
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"""Generate stats for the Wiki page.
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Input parameters are output of the parse() function.
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"""
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ret = ""
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ret += ('== Anmeldezahlen ==\n'
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'{|class="wikitable sortable"\n'
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'! Posten !! Anzahl\n'
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'|-\n')
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for item_id, item_name in items.items():
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ret += f"|| {item_name} || {count_items.get(item_id)}\n|-\n"
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ret += "|}\n"
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return ret
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