forked from mrlan/EnglishPal
				
			Refactor: remove raw sql sentences in Article.py
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						6d2191f727
					
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			@ -8,6 +8,7 @@ import hashlib
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from datetime import datetime
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from flask import Flask, request, redirect, render_template, url_for, session, abort, flash, get_flashed_messages
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from difficulty import get_difficulty_level, text_difficulty_level, user_difficulty_level
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from model.article import get_number_of_articles, get_article, get_article_by_id
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path_prefix = '/var/www/wordfreq/wordfreq/'
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			@ -15,11 +16,7 @@ path_prefix = './'  # comment this line in deployment
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def total_number_of_essays():
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    rq = RecordQuery(path_prefix + 'static/wordfreqapp.db')
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    rq.instructions("SELECT * FROM article")
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    rq.do()
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    result = rq.get_results()
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    return len(result)
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    get_number_of_articles()
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def get_article_title(s):
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			@ -33,18 +30,15 @@ def get_article_body(s):
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def get_today_article(user_word_list, existing_articles):
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    rq = RecordQuery(path_prefix + 'static/wordfreqapp.db')
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    if existing_articles is None:
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        existing_articles = {
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            "index" : 0,  # 为 article_ids 的索引
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            "article_ids": []  # 之前显示文章的id列表,越后越新
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        }
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    if existing_articles["index"] > len(existing_articles["article_ids"])-1:
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        rq.instructions("SELECT * FROM article")
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        result = list(get_article())   # 转为一个list
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    else:
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        rq.instructions('SELECT * FROM article WHERE article_id=%d' % (existing_articles["article_ids"][existing_articles["index"]]))
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    rq.do()
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    result = rq.get_results()
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        result = [get_article_by_id(existing_articles["article_ids"][existing_articles["index"]])]
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    random.shuffle(result)
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    # Choose article according to reader's level
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			@ -59,31 +53,31 @@ def get_today_article(user_word_list, existing_articles):
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    if existing_articles["index"] > len(existing_articles["article_ids"])-1:  # 下一篇
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        flag_get_article = False
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        for reading in result:
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            text_level = text_difficulty_level(reading['text'], d3)
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            text_level = text_difficulty_level(reading.text, d3)
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            factor = random.gauss(0.8,
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                                  0.1)  # a number drawn from Gaussian distribution with a mean of 0.8 and a stand deviation of 1
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            if reading['article_id'] not in existing_articles["article_ids"] and within_range(text_level, user_level, (8.0 - user_level) * factor):  # 新的文章之前没有出现过且符合一定范围的水平
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            if reading.article_id not in existing_articles["article_ids"] and within_range(text_level, user_level, (8.0 - user_level) * factor):  # 新的文章之前没有出现过且符合一定范围的水平
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                d = reading
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                existing_articles["article_ids"].append(d['article_id'])  # 列表添加新的文章id;下面进行
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                existing_articles["article_ids"].append(d.article_id)  # 列表添加新的文章id;下面进行
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                flag_get_article = True
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                break
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        if not flag_get_article:
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            existing_articles["index"] -= 1
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    else:  # 上一篇
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        d = random.choice(result)
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        text_level = text_difficulty_level(d['text'], d3)
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        text_level = text_difficulty_level(d.text, d3)
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    today_article = None
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    if d:
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        today_article = {
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            "user_level": '%4.2f' % user_level,
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            "text_level": '%4.2f' % text_level,
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            "date": d['date'],
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            "article_title": get_article_title(d['text']),
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            "article_body": get_article_body(d['text']),
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            "source": d["source"],
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            "question": get_question_part(d['question']),
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            "answer": get_answer_part(d['question'])
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            "date": d.date,
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            "article_title": get_article_title(d.text),
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            "article_body": get_article_body(d.text),
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            "source": d.source,
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            "question": get_question_part(d.question),
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            "answer": get_answer_part(d.question)
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        }
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    return existing_articles, today_article
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			@ -32,3 +32,14 @@ def get_page_articles(num, size):
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            x
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            for x in Article.select().order_by(desc(Article.article_id)).page(num, size)
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        ]
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def get_article():
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    with db_session:
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        return Article.select()[:]
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def get_article_by_id(article_id):
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    article_id &= 0xFFFFFFFF  # max 32 bits
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    with db_session:
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        article = Article.select(article_id=article_id)
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        if article:
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            return article.first()
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