Searchkick 分页、限制和偏移问题、rails

Question

我想在第一行显示最后 3 个外观，然后我想显示所有其他外观，但不显示 3 个最后外观。

这是我的代码

def index
    query = params[:query].presence || "*"
    conditions = {}
    conditions[:available] = true
    conditions[:look_tags] = params[:look_tags] if params[:look_tags].present?
    @last_3_looks = Look.search query, where: conditions, order: { created_at: :desc }, limit: 3
    @looks = Look.search query, where: conditions, order: { created_at: :desc }, page: params[:page], per_page: 8
end

问题是如果我像下面这样设置偏移量，我每页都有相同的 8 次查看，请问如何处理？

@looks = Look.search query, where: conditions, order: { created_at: :desc }, page: params[:page], per_page: 8, offset: 3
end

Answer 1

只需从@looks 中排除前 3 个结果（检查第 6 行）

query = params[:query].presence || "*"
conditions = {}
conditions[:available] = true
conditions[:look_tags] = params[:look_tags] if params[:look_tags].present?
@last_3_looks = Look.search query, where: conditions, order: { created_at: :desc }, limit: 3
conditions[:id] = { not: @last_3_looks.results.collect(&:id) }
@looks = Look.search query, where: conditions, order: { created_at: :desc }, page: params[:page], per_page: 8

Answer 2

好像你想计算偏移量，比如：

  page = params[:page].to_i
  per_page = 8
  starting_offset = 3
  offset = starting_offset + ((page - 1) * per_page)

  @looks = Look.search query, where: conditions, order: { created_at: :desc }, page: page, per_page: per_page, offset: offset

但您也可以考虑使用kaminari gem，它会为您进行计算。 好像是 Searchkick allows that。

另外，请参阅answers。