Sequlize分頁 -針對拼接數組進行封裝

代碼流程

1. 數組1查詢

    const AllTourGuide = await this._TourGuide.findAll({
      include: this._getAssociationOptionsForTime()
    })
    let arr = []
    for (let leave of AllTourGuide) {
      if (leave.tour_guide_leaves.length === 0) {
        arr.push(leave)
      }
    }

arr數組

2. 數組2查詢

    let where = { attractionId }
    let include = null
    if (Time) {
      include = this._getAssociationOptionForTime(Time)
    } else {
      include = this._getAssociationOptionsForTime()
    }
    const options = {
      where,
      include
    }
    const leaveGuide = await this._TourGuide.findAll(options)

3.返回數組1，數組2 並對返回的數組分頁

 return this.getpaging(currentPage, Count, result)
  }

  getpaging (currentPage, count, result) {
    return result.slice((currentPage - 1) * count, currentPage * count)
  }

4. slice(start,end)：返回從原數組中指定開始下標到結束下標之間的項組成的新數組

result.slice((currentPage - 1) * count, currentPage * count)