Django Pagination智能分页

Django3.2版本之后可以使用pagination.get_elided_page_range实现智能分页，将过长的页数范围删节成一个较短的范围。我因为Django版本太低，所以自己写了一个get_elided_page_range方法。

 

def get_elided_page_range(paginator, page, on_each_side=3, on_ends=1):
    """

    :param paginator: 分页器
    :param page: str,当前页数
    :param on_each_side: 当前页前后显示页数
    :param on_ends: 首尾端显示页数
    :return elided_page_range:list,删节后的页数list.例：当总页数为19，当前页为7时，返回[1,...,4,5,6,7,8,9,10,...,19]
    """
    page_range = paginator.page_range

    try:
        page = int(page)
    except:
        page = 1

    if len(page_range) <= 2 * (on_each_side + on_ends) + 1:
        return page_range
    else:
        flag = [False for i in page_range]
        flag[:on_ends] = [True for x in flag[:on_ends]]
        flag[-on_ends:] = [True for x in flag[-on_ends:]]

        if page - on_each_side > page_range[0]:
            m = page - on_each_side
        else:
            m = page_range[0]

        if page + on_each_side < page_range[-1]:
            n = page + on_each_side
        else:
            n = page_range[-1]

        flag[m - 1:n] = [True for x in flag[m - 1:n]]

        elided_page_range = []

        for i in page_range:
            if flag[i - 1] == True:
                elided_page_range.append(i)
            else:
                if elided_page_range[-1] != '...':
                    elided_page_range.append('...')

    return elided_page_range