cas_tt_cloud_backend/app/api/website/model/technology_demand.go

package model

import (
	"SciencesServer/app/common/model"
	"SciencesServer/serve/orm"
	"fmt"
)

type TechnologyDemand struct {
	*model.TechnologyDemand
}

type TechnologyDemandInfo struct {
	*model.TechnologyDemand
	CompanyKind int `json:"company_kind"`
}

func (m *TechnologyDemand) Demand(page, pageSize int, count *int64, where ...*model.ModelWhere) ([]*TechnologyDemandInfo, error) {
	out := make([]*TechnologyDemandInfo, 0)

	db := orm.GetDB().Table(m.TableName()+" AS d").
		Select("d.id", "d.title", "d.kind", "d.industry", "d.budget", "d.budget_mode", "d.deadline",
			"c.kind AS company_kind").
		Joins(fmt.Sprintf("LEFT JOIN %s AS u_c ON d.uid = u_c.uid AND u_c.is_deleted = %d",
			model.NewUserCompany().TableName(), model.DeleteStatusForNot)).
		Joins(fmt.Sprintf("LEFT JOIN %s AS c ON u_c.company_id = c.id", model.NewManageCompany().TableName())).
		Where("d.status = ?", model.TechnologyStatusKindForAgree)

	if len(where) > 0 {
		for _, v := range where {
			db = db.Where(v.Condition, v.Value)
		}
	}
	if err := db.Count(count).Error; err != nil {
		return nil, err
	}
	if err := db.Order("d.id " + model.OrderModeToDesc).Offset((page - 1) * pageSize).Limit(pageSize).Scan(&out).Error; err != nil {
		return nil, err
	}
	return out, nil
}

// Distribution 分布信息
func (m *TechnologyDemand) Distribution() ([]*DataAreaDistributionInfo, error) {
	out := make([]*DataAreaDistributionInfo, 0)

	err := orm.GetDB().Table(m.TableName()+" AS d").
		Select("e.province", "e.city", "e.district", "GROUP_CONCAT(d.industry SEPARATOR '&') AS industry").
		Joins(fmt.Sprintf("LEFT JOIN %s AS u_e ON d.uid = u_e.uid", model.NewUserExpert().TableName())).
		Joins(fmt.Sprintf("LEFT JOIN %s AS e ON u_e.expert_id = e.id", model.NewManageExpert().TableName())).
		Group("e.province").Group("e.city").Group("e.district").
		Order("e.province "+model.OrderModeToAsc).Order("e.city "+model.OrderModeToAsc).Order("e.district "+model.OrderModeToAsc).
		Where("d.status = ?", model.TechnologyStatusKindForAgree).
		Scan(&out).Error

	return out, err
}

func NewTechnologyDemand() *TechnologyDemand {
	return &TechnologyDemand{model.NewTechnologyDemand()}
}