From 7e0f72f0c5222f8b6ee1311134e8befaddc2cd4d Mon Sep 17 00:00:00 2001 From: phamvantuan Date: Fri, 2 Jun 2023 01:06:01 +0700 Subject: [PATCH 1/4] homework --- cmd/student-manager/main.go | 116 +++++++++++++++++++++++++----------- go.mod | 1 + go.sum | 89 +++++++++++++++++++++++++++ pkg/service/get_student.go | 3 +- 4 files changed, 171 insertions(+), 38 deletions(-) create mode 100644 go.sum diff --git a/cmd/student-manager/main.go b/cmd/student-manager/main.go index a7f8ffe..6c344eb 100644 --- a/cmd/student-manager/main.go +++ b/cmd/student-manager/main.go @@ -1,52 +1,55 @@ package main import ( - "encoding/json" - "flag" "fmt" - "io" "net/http" - "os" - "github.com/EngineerProOrg/BE-K01/configs" - "github.com/EngineerProOrg/BE-K01/pkg/controller" - "github.com/EngineerProOrg/BE-K01/pkg/service" "github.com/gin-gonic/gin" "github.com/go-redis/redis/v8" "gorm.io/driver/mysql" "gorm.io/gorm" ) -var ( - confPath = flag.String("conf", "files/live.json", "path to config file") -) +type Professor struct { + ProfId int32 `gorm:"prof_id"` + ProfLname string `gorm:"prof_lname"` + ProfFname string `gorm:"prof_fname"` + NumClass int32 `gorm:"num_class"` +} -func main() { - config := &configs.StudentManagerConfig{} - jsonFile, err := os.Open("users.json") - // if we os.Open returns an error then handle it - if err != nil { - fmt.Println(err) - return - } - defer jsonFile.Close() - bt, err := io.ReadAll(jsonFile) - if err != nil { - fmt.Println(err) - return - } - err = json.Unmarshal(bt, config) - if err != nil { - fmt.Println(err) - return +func responseError(c *gin.Context, err string) { + c.JSON(http.StatusBadRequest, gin.H{ + "error": err, + }) +} + +func getProfessors(db *gorm.DB) func(*gin.Context) { + return func(c *gin.Context) { + var data []Professor + + err := db.Table("professors as p"). + Select("p.prof_id, p.prof_lname, p.prof_fname, COUNT(p.prof_id) as num_class"). + Joins("JOIN classes as c ON c.prof_id = p.prof_id"). + Joins("JOIN enrolls as e ON c.class_id = e.class_id"). + Joins("JOIN students as s ON s.stud_id = e.stud_id"). + Group("p.prof_id"). + Find(&data).Error + if err != nil { + responseError(c, err.Error()) + return + } + + c.JSON(http.StatusOK, gin.H{ + "data": data, + }) } +} - r := gin.Default() - r.GET("/ping", func(ctx *gin.Context) { - ctx.JSON(http.StatusOK, gin.H{"message": "pong"}) - }) +func main() { + + // connect to mysql db, err := gorm.Open(mysql.New(mysql.Config{ - DSN: "root:123456@tcp(127.0.0.1:3306)/engineerpro?charset=utf8mb4&parseTime=True&loc=Local", + DSN: "root:12345@tcp(127.0.0.1:3305)/engineerpro?charset=utf8mb4&parseTime=True&loc=Local", DefaultStringSize: 256, DisableDatetimePrecision: true, DontSupportRenameIndex: true, @@ -54,15 +57,56 @@ func main() { }), &gorm.Config{ SkipDefaultTransaction: true, }) + + // connect to redis + rd := redis.NewClient(&redis.Options{ + Addr: "localhost:6377", + Password: "", // no password set + DB: 0, // use default DB + }) + // config := &configs.StudentManagerConfig{} + // jsonFile, err := os.Open("users.json") + // // if we os.Open returns an error then handle it + // if err != nil { + // fmt.Println(err) + // return + // } + // defer jsonFile.Close() + // bt, err := io.ReadAll(jsonFile) + // if err != nil { + // fmt.Println(err) + // return + // } + // err = json.Unmarshal(bt, config) + // if err != nil { + // fmt.Println(err) + // return + // } + + r := gin.Default() + + r.GET("/ping", func(ctx *gin.Context) { + if db != nil { + fmt.Println("connected DB ") + } + + ctx.JSON(http.StatusOK, gin.H{"message": "pong"}) + }) + + r.GET("/professor", getProfessors(db)) + if err != nil { fmt.Println("can not connect to db ", err) return } - rd := redis.NewClient(&redis.Options{}) + if rd == nil { + fmt.Println("connect fail to redis") return } - service := service.NewService(db, rd) - controller.MappingService(r, service) + + // ab := service.GetProfessor(1) + // print(ab) + // MappingService(r, service) r.Run() } diff --git a/go.mod b/go.mod index bc7f763..f75ac57 100644 --- a/go.mod +++ b/go.mod @@ -18,6 +18,7 @@ require ( github.com/go-playground/locales v0.14.1 // indirect github.com/go-playground/universal-translator v0.18.1 // indirect github.com/go-playground/validator/v10 v10.11.2 // indirect + github.com/go-redis/redis v6.15.9+incompatible // indirect github.com/go-sql-driver/mysql v1.7.0 // indirect github.com/goccy/go-json v0.10.0 // indirect github.com/jinzhu/inflection v1.0.0 // indirect diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..10a51d4 --- /dev/null +++ b/go.sum @@ -0,0 +1,89 @@ +github.com/bytedance/sonic v1.5.0/go.mod h1:ED5hyg4y6t3/9Ku1R6dU/4KyJ48DZ4jPhfY1O2AihPM= +github.com/bytedance/sonic v1.8.0 h1:ea0Xadu+sHlu7x5O3gKhRpQ1IKiMrSiHttPF0ybECuA= +github.com/bytedance/sonic v1.8.0/go.mod h1:i736AoUSYt75HyZLoJW9ERYxcy6eaN6h4BZXU064P/U= +github.com/cespare/xxhash/v2 v2.1.2 h1:YRXhKfTDauu4ajMg1TPgFO5jnlC2HCbmLXMcTG5cbYE= +github.com/cespare/xxhash/v2 v2.1.2/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs= +github.com/chenzhuoyu/base64x v0.0.0-20211019084208-fb5309c8db06/go.mod h1:DH46F32mSOjUmXrMHnKwZdA8wcEefY7UVqBKYGjpdQY= +github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311 h1:qSGYFH7+jGhDF8vLC+iwCD4WpbV1EBDSzWkJODFLams= +github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311/go.mod h1:b583jCggY9gE99b6G5LEC39OIiVsWj+R97kbl5odCEk= +github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78= +github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f/go.mod h1:cuUVRXasLTGF7a8hSLbxyZXjz+1KgoB3wDUb6vlszIc= +github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE= +github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI= +github.com/gin-gonic/gin v1.9.0 h1:OjyFBKICoexlu99ctXNR2gg+c5pKrKMuyjgARg9qeY8= +github.com/gin-gonic/gin v1.9.0/go.mod h1:W1Me9+hsUSyj3CePGrd1/QrKJMSJ1Tu/0hFEH89961k= +github.com/go-playground/locales v0.14.1 h1:EWaQ/wswjilfKLTECiXz7Rh+3BjFhfDFKv/oXslEjJA= +github.com/go-playground/locales v0.14.1/go.mod h1:hxrqLVvrK65+Rwrd5Fc6F2O76J/NuW9t0sjnWqG1slY= +github.com/go-playground/universal-translator v0.18.1 h1:Bcnm0ZwsGyWbCzImXv+pAJnYK9S473LQFuzCbDbfSFY= +github.com/go-playground/universal-translator v0.18.1/go.mod h1:xekY+UJKNuX9WP91TpwSH2VMlDf28Uj24BCp08ZFTUY= +github.com/go-playground/validator/v10 v10.11.2 h1:q3SHpufmypg+erIExEKUmsgmhDTyhcJ38oeKGACXohU= +github.com/go-playground/validator/v10 v10.11.2/go.mod h1:NieE624vt4SCTJtD87arVLvdmjPAeV8BQlHtMnw9D7s= +github.com/go-redis/redis v6.15.9+incompatible h1:K0pv1D7EQUjfyoMql+r/jZqCLizCGKFlFgcHWWmHQjg= +github.com/go-redis/redis v6.15.9+incompatible/go.mod h1:NAIEuMOZ/fxfXJIrKDQDz8wamY7mA7PouImQ2Jvg6kA= +github.com/go-redis/redis/v8 v8.11.5 h1:AcZZR7igkdvfVmQTPnu9WE37LRrO/YrBH5zWyjDC0oI= +github.com/go-redis/redis/v8 v8.11.5/go.mod h1:gREzHqY1hg6oD9ngVRbLStwAWKhA0FEgq8Jd4h5lpwo= +github.com/go-sql-driver/mysql v1.7.0 h1:ueSltNNllEqE3qcWBTD0iQd3IpL/6U+mJxLkazJ7YPc= +github.com/go-sql-driver/mysql v1.7.0/go.mod h1:OXbVy3sEdcQ2Doequ6Z5BW6fXNQTmx+9S1MCJN5yJMI= +github.com/goccy/go-json v0.10.0 h1:mXKd9Qw4NuzShiRlOXKews24ufknHO7gx30lsDyokKA= +github.com/goccy/go-json v0.10.0/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I= +github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk= +github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= +github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg= +github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E= +github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc= +github.com/jinzhu/now v1.1.5 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v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q= +github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9Gz0M= +github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk= +github.com/pelletier/go-toml/v2 v2.0.6 h1:nrzqCb7j9cDFj2coyLNLaZuJTLjWjlaz6nvTvIwycIU= +github.com/pelletier/go-toml/v2 v2.0.6/go.mod h1:eumQOmlWiOPt5WriQQqoM5y18pDHwha2N+QD+EUNTek= +github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= +github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= +github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw= +github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo= +github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI= +github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= 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b/pkg/service/get_student.go @@ -1,6 +1,5 @@ package service func (s *studentManagerService) GetStudent(id int64) interface{} { - //TODO implement me - panic("implement me") + s.repo.GetStudentByIdx(1) } From 4afdf1515bb84d4ab44a6db70313025ab6f759bc Mon Sep 17 00:00:00 2001 From: phamvantuan Date: Fri, 2 Jun 2023 01:06:01 +0700 Subject: [PATCH 2/4] homework --- cmd/student-manager/main.go | 127 ++++++++++++++++++++++++++---------- go.mod | 1 + go.sum | 89 +++++++++++++++++++++++++ pkg/service/get_student.go | 3 +- 4 files changed, 183 insertions(+), 37 deletions(-) create mode 100644 go.sum diff --git a/cmd/student-manager/main.go b/cmd/student-manager/main.go index a7f8ffe..30d4fe7 100644 --- a/cmd/student-manager/main.go +++ b/cmd/student-manager/main.go @@ -1,52 +1,68 @@ package main import ( - "encoding/json" - "flag" "fmt" - "io" "net/http" - "os" - "github.com/EngineerProOrg/BE-K01/configs" - "github.com/EngineerProOrg/BE-K01/pkg/controller" - "github.com/EngineerProOrg/BE-K01/pkg/service" "github.com/gin-gonic/gin" "github.com/go-redis/redis/v8" "gorm.io/driver/mysql" "gorm.io/gorm" ) -var ( - confPath = flag.String("conf", "files/live.json", "path to config file") -) +type Professor struct { + ProfId int32 `gorm:"prof_id"` + ProfLname string `gorm:"prof_lname"` + ProfFname string `gorm:"prof_fname"` + StudLname string `gorm:"stud_lname"` + StudFname string `gorm:"stud_fname"` + NumClass int32 `gorm:"num_class"` +} -func main() { - config := &configs.StudentManagerConfig{} - jsonFile, err := os.Open("users.json") - // if we os.Open returns an error then handle it - if err != nil { - fmt.Println(err) - return - } - defer jsonFile.Close() - bt, err := io.ReadAll(jsonFile) - if err != nil { - fmt.Println(err) - return +type Cource struct { + CourseId int32 `gorm:"course_id"` + CourseName string `gorm:"course_name"` +} + +func responseError(c *gin.Context, err string) { + c.JSON(http.StatusBadRequest, gin.H{ + "error": err, + }) +} + +func getProfessors(db *gorm.DB) func(*gin.Context) { + return func(c *gin.Context) { + var data []Professor + + err := db.Table("professors as p"). + Select("p.prof_id, p.prof_lname, p.prof_fname, s.stud_lname, s.stud_fname,COUNT(*) as num_class"). + Joins("JOIN classes as c ON c.prof_id = p.prof_id"). + Joins("JOIN enrolls as e ON c.class_id = e.class_id"). + Joins("JOIN students as s ON s.stud_id = e.stud_id"). + Group("p.prof_id, s.stud_id"). + Find(&data).Error + if err != nil { + responseError(c, err.Error()) + return + } + + c.JSON(http.StatusOK, gin.H{ + "data": data, + }) } - err = json.Unmarshal(bt, config) - if err != nil { - fmt.Println(err) - return +} + +func getCourceDistinct(dbb *gorm.DB) func(*gin.Context) { + return func(ctx *gin.Context) { + var data []Cource } +} - r := gin.Default() - r.GET("/ping", func(ctx *gin.Context) { - ctx.JSON(http.StatusOK, gin.H{"message": "pong"}) - }) +func main() { + + // connect to mysql db, err := gorm.Open(mysql.New(mysql.Config{ - DSN: "root:123456@tcp(127.0.0.1:3306)/engineerpro?charset=utf8mb4&parseTime=True&loc=Local", + DSN: "root:12345@tcp(127.0.0.1:3301)/engineerpro?charset=utf8mb4&parseTime=True&loc=Local", DefaultStringSize: 256, DisableDatetimePrecision: true, DontSupportRenameIndex: true, @@ -54,15 +70,56 @@ func main() { }), &gorm.Config{ SkipDefaultTransaction: true, }) + + // connect to redis + rd := redis.NewClient(&redis.Options{ + Addr: "localhost:6377", + Password: "", // no password set + DB: 0, // use default DB + }) + // config := &configs.StudentManagerConfig{} + // jsonFile, err := os.Open("users.json") + // // if we os.Open returns an error then handle it + // if err != nil { + // fmt.Println(err) + // return + // } + // defer jsonFile.Close() + // bt, err := io.ReadAll(jsonFile) + // if err != nil { + // fmt.Println(err) + // return + // } + // err = json.Unmarshal(bt, config) + // if err != nil { + // fmt.Println(err) + // return + // } + + r := gin.Default() + + r.GET("/ping", func(ctx *gin.Context) { + if db != nil { + fmt.Println("connected DB ") + } + + ctx.JSON(http.StatusOK, gin.H{"message": "pong"}) + }) + + r.GET("/professor", getProfessors(db)) + if err != nil { fmt.Println("can not connect to db ", err) return } - rd := redis.NewClient(&redis.Options{}) + if rd == nil { + fmt.Println("connect fail to redis") return } - service := service.NewService(db, rd) - controller.MappingService(r, service) + + // ab := service.GetProfessor(1) + // print(ab) + // MappingService(r, service) r.Run() } diff --git a/go.mod b/go.mod index bc7f763..f75ac57 100644 --- a/go.mod +++ b/go.mod @@ -18,6 +18,7 @@ require ( github.com/go-playground/locales v0.14.1 // indirect github.com/go-playground/universal-translator v0.18.1 // indirect github.com/go-playground/validator/v10 v10.11.2 // indirect + github.com/go-redis/redis v6.15.9+incompatible // indirect github.com/go-sql-driver/mysql v1.7.0 // indirect github.com/goccy/go-json v0.10.0 // indirect github.com/jinzhu/inflection v1.0.0 // indirect diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..10a51d4 --- /dev/null +++ b/go.sum @@ -0,0 +1,89 @@ +github.com/bytedance/sonic v1.5.0/go.mod h1:ED5hyg4y6t3/9Ku1R6dU/4KyJ48DZ4jPhfY1O2AihPM= +github.com/bytedance/sonic v1.8.0 h1:ea0Xadu+sHlu7x5O3gKhRpQ1IKiMrSiHttPF0ybECuA= +github.com/bytedance/sonic v1.8.0/go.mod h1:i736AoUSYt75HyZLoJW9ERYxcy6eaN6h4BZXU064P/U= +github.com/cespare/xxhash/v2 v2.1.2 h1:YRXhKfTDauu4ajMg1TPgFO5jnlC2HCbmLXMcTG5cbYE= +github.com/cespare/xxhash/v2 v2.1.2/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs= +github.com/chenzhuoyu/base64x v0.0.0-20211019084208-fb5309c8db06/go.mod h1:DH46F32mSOjUmXrMHnKwZdA8wcEefY7UVqBKYGjpdQY= +github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311 h1:qSGYFH7+jGhDF8vLC+iwCD4WpbV1EBDSzWkJODFLams= +github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311/go.mod h1:b583jCggY9gE99b6G5LEC39OIiVsWj+R97kbl5odCEk= +github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78= +github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f/go.mod h1:cuUVRXasLTGF7a8hSLbxyZXjz+1KgoB3wDUb6vlszIc= +github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE= +github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI= +github.com/gin-gonic/gin v1.9.0 h1:OjyFBKICoexlu99ctXNR2gg+c5pKrKMuyjgARg9qeY8= +github.com/gin-gonic/gin v1.9.0/go.mod h1:W1Me9+hsUSyj3CePGrd1/QrKJMSJ1Tu/0hFEH89961k= +github.com/go-playground/locales v0.14.1 h1:EWaQ/wswjilfKLTECiXz7Rh+3BjFhfDFKv/oXslEjJA= +github.com/go-playground/locales v0.14.1/go.mod h1:hxrqLVvrK65+Rwrd5Fc6F2O76J/NuW9t0sjnWqG1slY= +github.com/go-playground/universal-translator v0.18.1 h1:Bcnm0ZwsGyWbCzImXv+pAJnYK9S473LQFuzCbDbfSFY= +github.com/go-playground/universal-translator v0.18.1/go.mod h1:xekY+UJKNuX9WP91TpwSH2VMlDf28Uj24BCp08ZFTUY= +github.com/go-playground/validator/v10 v10.11.2 h1:q3SHpufmypg+erIExEKUmsgmhDTyhcJ38oeKGACXohU= +github.com/go-playground/validator/v10 v10.11.2/go.mod h1:NieE624vt4SCTJtD87arVLvdmjPAeV8BQlHtMnw9D7s= +github.com/go-redis/redis v6.15.9+incompatible h1:K0pv1D7EQUjfyoMql+r/jZqCLizCGKFlFgcHWWmHQjg= +github.com/go-redis/redis v6.15.9+incompatible/go.mod h1:NAIEuMOZ/fxfXJIrKDQDz8wamY7mA7PouImQ2Jvg6kA= +github.com/go-redis/redis/v8 v8.11.5 h1:AcZZR7igkdvfVmQTPnu9WE37LRrO/YrBH5zWyjDC0oI= +github.com/go-redis/redis/v8 v8.11.5/go.mod h1:gREzHqY1hg6oD9ngVRbLStwAWKhA0FEgq8Jd4h5lpwo= +github.com/go-sql-driver/mysql v1.7.0 h1:ueSltNNllEqE3qcWBTD0iQd3IpL/6U+mJxLkazJ7YPc= +github.com/go-sql-driver/mysql v1.7.0/go.mod h1:OXbVy3sEdcQ2Doequ6Z5BW6fXNQTmx+9S1MCJN5yJMI= +github.com/goccy/go-json v0.10.0 h1:mXKd9Qw4NuzShiRlOXKews24ufknHO7gx30lsDyokKA= 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v2.0.9/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa0213Md/qVLRg= +github.com/leodido/go-urn v1.2.1 h1:BqpAaACuzVSgi/VLzGZIobT2z4v53pjosyNd9Yv6n/w= +github.com/leodido/go-urn v1.2.1/go.mod h1:zt4jvISO2HfUBqxjfIshjdMTYS56ZS/qv49ictyFfxY= +github.com/mattn/go-isatty v0.0.17 h1:BTarxUcIeDqL27Mc+vyvdWYSL28zpIhv3RoTdsLMPng= +github.com/mattn/go-isatty v0.0.17/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM= +github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 h1:ZqeYNhU3OHLH3mGKHDcjJRFFRrJa6eAM5H+CtDdOsPc= +github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q= +github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9Gz0M= +github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk= +github.com/pelletier/go-toml/v2 v2.0.6 h1:nrzqCb7j9cDFj2coyLNLaZuJTLjWjlaz6nvTvIwycIU= +github.com/pelletier/go-toml/v2 v2.0.6/go.mod h1:eumQOmlWiOPt5WriQQqoM5y18pDHwha2N+QD+EUNTek= +github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= +github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= +github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw= +github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo= +github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI= +github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= +github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= +github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= +github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU= +github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4= +github.com/twitchyliquid64/golang-asm v0.15.1 h1:SU5vSMR7hnwNxj24w34ZyCi/FmDZTkS4MhqMhdFk5YI= +github.com/twitchyliquid64/golang-asm v0.15.1/go.mod h1:a1lVb/DtPvCB8fslRZhAngC2+aY1QWCk3Cedj/Gdt08= +github.com/ugorji/go/codec v1.2.9 h1:rmenucSohSTiyL09Y+l2OCk+FrMxGMzho2+tjr5ticU= +github.com/ugorji/go/codec v1.2.9/go.mod h1:UNopzCgEMSXjBc6AOMqYvWC1ktqTAfzJZUZgYf6w6lg= +golang.org/x/arch v0.0.0-20210923205945-b76863e36670 h1:18EFjUmQOcUvxNYSkA6jO9VAiXCnxFY6NyDX0bHDmkU= +golang.org/x/arch v0.0.0-20210923205945-b76863e36670/go.mod h1:5om86z9Hs0C8fWVUuoMHwpExlXzs5Tkyp9hOrfG7pp8= +golang.org/x/crypto v0.5.0 h1:U/0M97KRkSFvyD/3FSmdP5W5swImpNgle/EHFhOsQPE= +golang.org/x/crypto v0.5.0/go.mod h1:NK/OQwhpMQP3MwtdjgLlYHnH9ebylxKWv3e0fK+mkQU= +golang.org/x/net v0.7.0 h1:rJrUqqhjsgNp7KqAIc25s9pZnjU7TUcSY7HcVZjdn1g= +golang.org/x/net v0.7.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs= +golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.5.0 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h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= +gorm.io/driver/mysql v1.5.1 h1:WUEH5VF9obL/lTtzjmML/5e6VfFR/788coz2uaVCAZw= +gorm.io/driver/mysql v1.5.1/go.mod h1:Jo3Xu7mMhCyj8dlrb3WoCaRd1FhsVh+yMXb1jUInf5o= +gorm.io/gorm v1.25.1 h1:nsSALe5Pr+cM3V1qwwQ7rOkw+6UeLrX5O4v3llhHa64= +gorm.io/gorm v1.25.1/go.mod h1:L4uxeKpfBml98NYqVqwAdmV1a2nBtAec/cf3fpucW/k= +rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4= diff --git a/pkg/service/get_student.go b/pkg/service/get_student.go index a3517a6..4bc5944 100644 --- a/pkg/service/get_student.go +++ b/pkg/service/get_student.go @@ -1,6 +1,5 @@ package service func (s *studentManagerService) GetStudent(id int64) interface{} { - //TODO implement me - panic("implement me") + s.repo.GetStudentByIdx(1) } From 5861a20282a834091d6d13266c101e732910cb2f Mon Sep 17 00:00:00 2001 From: phamvantuan Date: Sun, 4 Jun 2023 00:52:56 +0700 Subject: [PATCH 3/4] update homework 2 --- cmd/student-manager/main.go | 76 +++++++++++++++++++------------------ pkg/service/get_student.go | 2 +- pkg/service/service.go | 19 ++++++---- 3 files changed, 53 insertions(+), 44 deletions(-) diff --git a/cmd/student-manager/main.go b/cmd/student-manager/main.go index 20bf460..d8d8736 100644 --- a/cmd/student-manager/main.go +++ b/cmd/student-manager/main.go @@ -46,13 +46,37 @@ func getProfessors(db *gorm.DB) func(*gin.Context) { return } - r := gin.Default() - r.GET("/ping", func(ctx *gin.Context) { - ctx.JSON(http.StatusOK, gin.H{"message": "pong"}) - }) + c.JSON(http.StatusOK, gin.H{ + "data": data, + }) + } +} + +func getCourceDistinct(db *gorm.DB) func(*gin.Context) { + return func(c *gin.Context) { + var data []Cource + err := db.Table("courses as c"). + Select("c.*"). + Joins("JOIN classes as cl ON c.course_id = cl.course_id"). + Joins("JOIN professors as p ON p.prof_id = cl.prof_id"). + Where("p.prof_id = ? ", 1). + Find(&data).Error + + if err != nil { + responseError(c, err.Error()) + return + } + + c.JSON(http.StatusOK, gin.H{ + "data": data, + }) + } +} + +func main() { + // connect to mysql db, err := gorm.Open(mysql.New(mysql.Config{ DSN: "root:12345@tcp(127.0.0.1:3305)/engineerpro?charset=utf8mb4&parseTime=True&loc=Local", - DSN: "root:12345@tcp(127.0.0.1:3301)/engineerpro?charset=utf8mb4&parseTime=True&loc=Local", DefaultStringSize: 256, DisableDatetimePrecision: true, DontSupportRenameIndex: true, @@ -67,24 +91,16 @@ func getProfessors(db *gorm.DB) func(*gin.Context) { Password: "", // no password set DB: 0, // use default DB }) - // config := &configs.StudentManagerConfig{} - // jsonFile, err := os.Open("users.json") - // // if we os.Open returns an error then handle it - // if err != nil { - // fmt.Println(err) - // return - // } - // defer jsonFile.Close() - // bt, err := io.ReadAll(jsonFile) - // if err != nil { - // fmt.Println(err) - // return - // } - // err = json.Unmarshal(bt, config) - // if err != nil { - // fmt.Println(err) - // return - // } + + if err != nil { + fmt.Println("can not connect to db ", err) + return + } + + if rd == nil { + fmt.Println("connect fail to redis") + return + } r := gin.Default() @@ -97,19 +113,7 @@ func getProfessors(db *gorm.DB) func(*gin.Context) { }) r.GET("/professor", getProfessors(db)) + r.GET("/courses", getCourceDistinct(db)) - if err != nil { - fmt.Println("can not connect to db ", err) - return - } - - if rd == nil { - fmt.Println("connect fail to redis") - return - } - - // ab := service.GetProfessor(1) - // print(ab) - // MappingService(r, service) r.Run() } diff --git a/pkg/service/get_student.go b/pkg/service/get_student.go index 4bc5944..47f25d8 100644 --- a/pkg/service/get_student.go +++ b/pkg/service/get_student.go @@ -1,5 +1,5 @@ package service func (s *studentManagerService) GetStudent(id int64) interface{} { - s.repo.GetStudentByIdx(1) + return s.repo.GetStudentByIdx(1) } diff --git a/pkg/service/service.go b/pkg/service/service.go index e3040e3..88d5415 100644 --- a/pkg/service/service.go +++ b/pkg/service/service.go @@ -1,8 +1,9 @@ package service import ( + "fmt" + "github.com/EngineerProOrg/BE-K01/pkg/repository" - "github.com/gin-gonic/gin" "github.com/go-redis/redis/v8" "gorm.io/gorm" ) @@ -14,6 +15,16 @@ type StudentManagerService interface { type studentManagerService struct { repo repository.StudentRepository redis *redis.Client + db *gorm.DB +} + +type StudentManager struct { + // Các trường dữ liệu khác của StudentManager (nếu có) +} + +func (s *StudentManager) GetProfessor(id int64) interface{} { + fmt.Println("vo day") + return nil } func NewService(db *gorm.DB, redis *redis.Client) StudentManagerService { @@ -22,9 +33,3 @@ func NewService(db *gorm.DB, redis *redis.Client) StudentManagerService { redis: redis, } } - -func MappingService(r *gin.Engine, service StudentManagerService) { - r.GET("test", func(context *gin.Context) { - service.GetProfessor(1) - }) -} From d6c93d62391d56aaea072b73c929d504251fa503 Mon Sep 17 00:00:00 2001 From: phamvantuan Date: Sun, 4 Jun 2023 00:52:56 +0700 Subject: [PATCH 4/4] update homework 2 --- cmd/student-manager/main.go | 154 ++++++++++++++++++++++++++---------- pkg/service/get_student.go | 2 +- pkg/service/service.go | 19 +++-- 3 files changed, 124 insertions(+), 51 deletions(-) diff --git a/cmd/student-manager/main.go b/cmd/student-manager/main.go index 20bf460..47f671b 100644 --- a/cmd/student-manager/main.go +++ b/cmd/student-manager/main.go @@ -1,8 +1,10 @@ package main import ( + "context" "fmt" "net/http" + "time" "github.com/gin-gonic/gin" "github.com/go-redis/redis/v8" @@ -19,6 +21,11 @@ type Professor struct { NumClass int32 `gorm:"num_class"` } +type LoginInfo struct { + Username string `json:"username"` + Password string `json:"password"` +} + type Cource struct { CourseId int32 `gorm:"course_id"` CourseName string `gorm:"course_name"` @@ -30,6 +37,12 @@ func responseError(c *gin.Context, err string) { }) } +var rd = redis.NewClient(&redis.Options{ + Addr: "localhost:6377", + Password: "", // no password set + DB: 0, // use default DB +}) + func getProfessors(db *gorm.DB) func(*gin.Context) { return func(c *gin.Context) { var data []Professor @@ -46,13 +59,97 @@ func getProfessors(db *gorm.DB) func(*gin.Context) { return } - r := gin.Default() - r.GET("/ping", func(ctx *gin.Context) { - ctx.JSON(http.StatusOK, gin.H{"message": "pong"}) - }) + c.JSON(http.StatusOK, gin.H{ + "data": data, + }) + } +} + +func getCourceDistinct(db *gorm.DB) func(*gin.Context) { + return func(c *gin.Context) { + var data []Cource + err := db.Table("courses as c"). + Select("c.*"). + Joins("JOIN classes as cl ON c.course_id = cl.course_id"). + Joins("JOIN professors as p ON p.prof_id = cl.prof_id"). + Where("p.prof_id = ? ", 1). + Find(&data).Error + + if err != nil { + responseError(c, err.Error()) + return + } + + c.JSON(http.StatusOK, gin.H{ + "data": data, + }) + } +} + +func login(c *gin.Context) { + username := c.PostForm("username") + password := c.PostForm("password") + if len(username) == 0 || len(password) == 0 { + // handle validate + fmt.Println("Please enter username and password") + } + + if username != "admin" || password != "1234" { + fmt.Println("Incorrect !!") + return + } + key := "user_" + username + ctx := context.Background() + err := rd.SetNX(ctx, key, username, time.Duration(0)).Err() + + if err != nil { + fmt.Println("Fail !!") + return + } + fmt.Println("Save session done !!") +} + +var keyApiPing = "user_accessing" + +// API /ping chỉ cho phép 1 người được gọi tại một thời điểm ( với sleep ở bên trong api đó trong 5s) +func ping(c *gin.Context) { + ctx := context.Background() + + exists, err := rd.Exists(ctx, keyApiPing).Result() + if err != nil { + fmt.Println("error ", err) + return + } + + // check nếu đang tồn tại key thì sleep 5 - ttl của key + if exists == 1 { + ttl, err := rd.TTL(ctx, keyApiPing).Result() + if err != nil { + fmt.Println("Lỗi khi lấy TTL:", err) + return + } + fmt.Printf("ttl %d", ttl) + if ttl > 0 { + waitTime := time.Duration(ttl) + fmt.Printf("wait %d minutes", ttl) + time.Sleep(waitTime) + } + } else { + // khi vào, tạo một key trong redis set time 5s + err := rd.SetNX(ctx, keyApiPing, "1", 5*time.Second).Err() + if err != nil { + return + } + } + + // return resource + fmt.Println("Access resource") +} + +func main() { + // connect to mysql db, err := gorm.Open(mysql.New(mysql.Config{ DSN: "root:12345@tcp(127.0.0.1:3305)/engineerpro?charset=utf8mb4&parseTime=True&loc=Local", - DSN: "root:12345@tcp(127.0.0.1:3301)/engineerpro?charset=utf8mb4&parseTime=True&loc=Local", DefaultStringSize: 256, DisableDatetimePrecision: true, DontSupportRenameIndex: true, @@ -62,41 +159,6 @@ func getProfessors(db *gorm.DB) func(*gin.Context) { }) // connect to redis - rd := redis.NewClient(&redis.Options{ - Addr: "localhost:6377", - Password: "", // no password set - DB: 0, // use default DB - }) - // config := &configs.StudentManagerConfig{} - // jsonFile, err := os.Open("users.json") - // // if we os.Open returns an error then handle it - // if err != nil { - // fmt.Println(err) - // return - // } - // defer jsonFile.Close() - // bt, err := io.ReadAll(jsonFile) - // if err != nil { - // fmt.Println(err) - // return - // } - // err = json.Unmarshal(bt, config) - // if err != nil { - // fmt.Println(err) - // return - // } - - r := gin.Default() - - r.GET("/ping", func(ctx *gin.Context) { - if db != nil { - fmt.Println("connected DB ") - } - - ctx.JSON(http.StatusOK, gin.H{"message": "pong"}) - }) - - r.GET("/professor", getProfessors(db)) if err != nil { fmt.Println("can not connect to db ", err) @@ -108,8 +170,14 @@ func getProfessors(db *gorm.DB) func(*gin.Context) { return } - // ab := service.GetProfessor(1) - // print(ab) - // MappingService(r, service) + r := gin.Default() + + r.GET("/professor", getProfessors(db)) + r.GET("/courses", getCourceDistinct(db)) + + // Bai tap redis + r.POST("/login", login) + r.GET("/ping", ping) + r.Run() } diff --git a/pkg/service/get_student.go b/pkg/service/get_student.go index 4bc5944..47f25d8 100644 --- a/pkg/service/get_student.go +++ b/pkg/service/get_student.go @@ -1,5 +1,5 @@ package service func (s *studentManagerService) GetStudent(id int64) interface{} { - s.repo.GetStudentByIdx(1) + return s.repo.GetStudentByIdx(1) } diff --git a/pkg/service/service.go b/pkg/service/service.go index e3040e3..88d5415 100644 --- a/pkg/service/service.go +++ b/pkg/service/service.go @@ -1,8 +1,9 @@ package service import ( + "fmt" + "github.com/EngineerProOrg/BE-K01/pkg/repository" - "github.com/gin-gonic/gin" "github.com/go-redis/redis/v8" "gorm.io/gorm" ) @@ -14,6 +15,16 @@ type StudentManagerService interface { type studentManagerService struct { repo repository.StudentRepository redis *redis.Client + db *gorm.DB +} + +type StudentManager struct { + // Các trường dữ liệu khác của StudentManager (nếu có) +} + +func (s *StudentManager) GetProfessor(id int64) interface{} { + fmt.Println("vo day") + return nil } func NewService(db *gorm.DB, redis *redis.Client) StudentManagerService { @@ -22,9 +33,3 @@ func NewService(db *gorm.DB, redis *redis.Client) StudentManagerService { redis: redis, } } - -func MappingService(r *gin.Engine, service StudentManagerService) { - r.GET("test", func(context *gin.Context) { - service.GetProfessor(1) - }) -}