/
setting.go
170 lines (136 loc) · 3.93 KB
/
setting.go
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package settings
import (
"context"
"errors"
"fmt"
"net/http"
"github.com/go-chi/chi"
"github.com/go-chi/render"
"github.com/go-pg/pg/v10"
"github.com/codewinks/cwblog/api/core"
"github.com/codewinks/cwblog/api/middleware"
"github.com/codewinks/cwblog/api/models"
)
type key int
const (
settingId key = iota
)
//Handler consists of the DB connection and Routes
type Handler core.Handler
//Routes consists of the route method declarations for Settings.
func Routes(r chi.Router, db *pg.DB) chi.Router {
cw := &Handler{DB: db}
r.Route("/settings", func(r chi.Router) {
r.Group(func(r chi.Router) {
r.Use(middleware.IsAuthenticated)
r.Get("/", cw.List)
r.Post("/", cw.Store)
r.Route("/{settingId}", func(r chi.Router) {
r.Use(cw.SettingCtx)
r.Get("/", cw.Get)
r.Put("/", cw.Update)
r.Delete("/", cw.Delete)
})
})
})
return r
}
//List handler returns all setting in JSON format.
func (cw *Handler) List(w http.ResponseWriter, r *http.Request) {
var setting []models.Setting
err := cw.DB.Model(&setting).Select()
if err != nil {
render.Render(w, r, core.ErrInvalidRequest(err))
}
render.JSON(w, r, setting)
}
//Store handler creates a new setting and returns the setting in JSON format.
func (cw *Handler) Store(w http.ResponseWriter, r *http.Request) {
data := &SettingRequest{}
if err := render.Bind(r, data); err != nil {
render.Render(w, r, core.ErrInvalidRequest(err))
return
}
var setting models.Setting
exists, err := cw.DB.Model(&setting).Where("key = ?", data.Setting.Key).Exists()
if err != nil {
render.Render(w, r, core.ErrInvalidRequest(err))
return
}
if exists {
render.Render(w, r, core.ErrConflict(errors.New("Setting already exists with that key.")))
return
}
_, err = cw.DB.Model(data.Setting).Insert()
if err != nil {
render.Render(w, r, core.ErrInvalidRequest(err))
return
}
fmt.Printf("====%#v \n", setting)
render.JSON(w, r, setting)
}
//Get handler returns a setting by the provided {settingId}
func (cw *Handler) Get(w http.ResponseWriter, r *http.Request) {
fmt.Println("-----")
setting := r.Context().Value(settingId).(*models.Setting)
if setting == nil {
render.Render(w, r, core.ErrNotFound)
return
}
render.JSON(w, r, setting)
}
//Update handler updates a setting by the provided {settingId}
func (cw *Handler) Update(w http.ResponseWriter, r *http.Request) {
setting := r.Context().Value(settingId).(*models.Setting)
err := cw.DB.Model(setting).WherePK().Select()
if err != nil {
render.Render(w, r, core.ErrInvalidRequest(err))
return
}
data := &SettingRequest{Setting: setting}
if err := render.Bind(r, data); err != nil {
render.Render(w, r, core.ErrInvalidRequest(err))
return
}
setting = data.Setting
_, err = cw.DB.Model(setting).WherePK().Update()
if err != nil {
render.Render(w, r, core.ErrInvalidRequest(err))
return
}
err = cw.DB.Model(setting).WherePK().Select()
if err != nil {
render.Render(w, r, core.ErrInvalidRequest(err))
return
}
render.JSON(w, r, setting)
}
//Delete handler deletes a setting by the provided {settingId}
func (cw *Handler) Delete(w http.ResponseWriter, r *http.Request) {
setting := r.Context().Value(settingId).(*models.Setting)
_, err := cw.DB.Model(setting).WherePK().Delete()
if err != nil {
render.Render(w, r, core.ErrInvalidRequest(err))
return
}
render.JSON(w, r, setting)
}
//SettingCtx handler loads a setting by {settingId}
func (cw *Handler) SettingCtx(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
var setting models.Setting
var err error
if settingId := chi.URLParam(r, "settingId"); settingId != "" {
err = cw.DB.Model(&setting).Where("id = ?", settingId).First()
} else {
render.Render(w, r, core.ErrNotFound)
return
}
if err != nil {
render.Render(w, r, core.ErrNotFound)
return
}
ctx := context.WithValue(r.Context(), settingId, &setting)
next.ServeHTTP(w, r.WithContext(ctx))
})
}