api.py 文件源码

def get_chapter(book_id):
    # chapters = Chapter.query.filter_by(book_id=book_id).all()
    page = request.args.get('page', 1, type=int)
    pagination = Chapter.query.filter_by(book_id=book_id).paginate(
        page, per_page=current_app.config['CHAPTER_PER_PAGE'],
        error_out=False
    )
    chapters = pagination.items
    prev = None
    if pagination.has_prev:
        prev = url_for('api.get_chapter', book_id=book_id, page=page-1, _external=True)
    next = None
    if pagination.has_next:
        next = url_for('api.get_chapter', book_id=book_id, page=page+1, _external=True)

    return jsonify({
        'chapters': [chapter.to_json() for chapter in chapters],
        'prev': prev,
        'next': next
    })