我在这里使用sort()
对数据进行排序,但效果不佳。下面我发布了我的代码和输出: -
代码: -
结构声明
import(
"github.com/gin-gonic/gin"
"gopkg.in/mgo.v2/bson"
"strconv"
"fmt"
"time"
"gopkg.in/mgo.v2"// for db
)
type Schedule struct{
Id int `json:"_id" bson:"_id"`
Day string `form:"day" json:"day" bson:"day"`
StartDate int64 `form:"start_date" json:"start_date" bson:"start_date"`
EndDate int64 `form:"end_date" json:"end_date" bson:"end_date"`
StartTime int64 `form:"start_time" json:"start_time" bson:"start_time"`
EndTime int64 `form:"end_time" json:"end_time" bson:"end_time"`
}
type Schedules []Schedule
数据库功能
func GetSchedulingListing(Query interface{}) (result Schedules, err error) {
mongoSession := ConnectDb()
sessionCopy := mongoSession.Copy()
defer sessionCopy.Close()
getCollection := mongoSession.DB("schedule2").C("schedule")
err = getCollection.Find(Query).Select(bson.M{"start_date": 1, "end_date": 1}).Sort("start_date").All(&result)
if err != nil {
return result, err
}
return result, nil
}
func GetSchedule(c *gin.Context) {
selected_day:= "Monday"
conditions := bson.M{"day":selected_day}
data, err := models.GetSchedulingListing(conditions)
for i := range data {
start_date := data[i].StartDate
end_date := data[i].EndDate
days:= time.Unix(end_date,0).Sub(time.Unix(start_date,0)).Hours() / 24
for i := 1; i <= int(days+1); i++ {
if selected_day == time.Unix(start_date,0).Weekday().String() {
fmt.Println(start_date)
}
start_date = start_date + 86400
}
}
}
在上面的代码中,我在查询函数Sort("start_date")
中使用GetSchedulingListing
。但它不能很好地打印输出,如: -
输出: -
1525651200
1526256000
1526860800
1527465600
1525651200
1526256000
1526860800
1527465600
预期产出: -
1525651200
1525651200
1526256000
1526256000
1526860800
1526860800
1527465600
1527465600
数据库记录: -
{
"_id" : 1,
"day" : "Monday",
"start_date" : NumberLong(1525132800),
"end_date" : NumberLong(1527638400),
"start_time" : NumberLong(22800),
"end_time" : NumberLong(30000)
}
{
"_id" : 2,
"day" : "Monday",
"start_date" : NumberLong(1525132800),
"end_date" : NumberLong(1527638400),
"start_time" : NumberLong(12000),
"end_time" : NumberLong(19200)
}
查询检索的数据
[{1 1525132800 1527638400 0 0} {2 1525132800 1527638400 0 0}]
// because I'm using the `.Select(bson.M{"start_date": 1, "end_date": 1})`
任何人都可以告诉我为什么我没有得到预期输出的问题。谢谢。