84 lines
3.0 KiB
Go
84 lines
3.0 KiB
Go
package model
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import (
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"SciencesServer/app/common/model"
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"SciencesServer/serve/orm"
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"fmt"
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)
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// ActivityInstance 活动信息数据
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type ActivityInstance struct {
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*model.ActivityInstance
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}
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type (
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// ActivityInstanceInfo 活动信息
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ActivityInstanceInfo struct {
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model.Model
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model.Image
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*model.ActivityInstanceBasic
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JoinID uint64 `json:"-"`
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JoinCount int `json:"join_count"`
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}
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// ActivityInstanceDetail 活动详细信息
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ActivityInstanceDetail struct {
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*model.ActivityInstance
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JoinID uint64 `json:"-"`
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JoinCount int `json:"join_count"`
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}
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)
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// Activity 活动信息
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func (m *ActivityInstance) Activity(uid uint64, identity, page, pageSize int, count *int64, where ...*model.ModelWhere) ([]*ActivityInstanceInfo, error) {
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mActivityJoin := model.NewActivityJoin()
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db := orm.GetDB().Table(m.TableName()+" AS a").
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Select("a.id", "a.title", "a.image", "a.begin_at", "a.finish_at", "a.join_deadline",
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"IFNULL(u.id, 0) AS join_id", "j.count AS join_count").
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Joins(fmt.Sprintf("LEFT JOIN %s u ON a.id = u.activity_id AND u.uid = %d AND u.identity = %d AND u.status = %d AND u.is_deleted = %d",
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mActivityJoin.TableName(), uid, identity, model.ActivityJoinStatusForSuccess, model.DeleteStatusForNot)).
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Joins(fmt.Sprintf("LEFT JOIN (SELECT activity_id, COUNT(id) AS count FROM %s WHERE status = %d AND is_deleted = %d GROUP BY activity_id) AS j ON a.id = j.activity_id",
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mActivityJoin.TableName(), model.ActivityJoinStatusForSuccess, model.DeleteStatusForNot)).
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Where("a.status = ?", model.ActivityInstanceStatusForShow).
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Where("a.is_deleted = ?", model.DeleteStatusForNot)
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if len(where) > 0 {
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for _, v := range where {
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db = db.Where(v.Condition, v.Value)
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}
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}
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out := make([]*ActivityInstanceInfo, 0)
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if err := db.Count(count).Error; err != nil {
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return nil, err
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}
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if err := db.Order("a.id " + model.OrderModeToDesc).Offset((page - 1) * pageSize).Limit(pageSize).Scan(&out).Error; err != nil {
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return nil, err
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}
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return out, nil
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}
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// Detail 详细信息
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func (m *ActivityInstance) Detail(id, uid uint64, identity int) (*ActivityInstanceDetail, error) {
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mActivityJoin := model.NewActivityJoin()
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db := orm.GetDB().Table(m.TableName()+" AS a").
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Select("a.id", "a.title", "a.image", "a.begin_at", "a.finish_at", "a.join_deadline",
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"IFNULL(u.id, 0) AS join_id", "j.count AS join_count").
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Joins(fmt.Sprintf("LEFT JOIN %s u ON a.id = u.activity_id AND u.uid = %d AND u.identity = %d AND u.status = %d AND u.is_deleted = %d",
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mActivityJoin.TableName(), uid, identity, model.ActivityJoinStatusForSuccess, model.DeleteStatusForNot)).
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Joins(fmt.Sprintf("LEFT JOIN (SELECT activity_id, COUNT(id) AS count FROM %s WHERE status = %d AND is_deleted = %d GROUP BY activity_id) AS j ON a.id = j.activity_id",
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mActivityJoin.TableName(), model.ActivityJoinStatusForSuccess, model.DeleteStatusForNot)).
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Where("a.id = ?", id)
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out := new(ActivityInstanceDetail)
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err := db.Scan(&out).Error
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return out, err
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}
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func NewActivityInstance() *ActivityInstance {
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return &ActivityInstance{model.NewActivityInstance()}
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}
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