Replaced CObject with a function returning an object

REST-Tests/lists.http

@@ -5,7 +5,7 @@ Authorization: Bearer {{auth_token}}
 ###
 
 # Get one list
-GET http://localhost:8080/api/v1/lists/13546850
+GET http://localhost:8080/api/v1/lists/2
 Authorization: Bearer {{auth_token}}
 
 ###

routes/crud/create.go

@@ -4,17 +4,15 @@ import (
 	"code.vikunja.io/api/models"
 	"github.com/labstack/echo"
 	"net/http"
-	"reflect"
 )
 
 // CreateWeb is the handler to create an object
 func (c *WebHandler) CreateWeb(ctx echo.Context) error {
-	// Re-initialize our model
+	// Get our model
-	p := reflect.ValueOf(c.CObject).Elem()
+	currentStruct := c.EmptyStruct()
-	p.Set(reflect.Zero(p.Type()))
 
 	// Get the object & bind params to struct
-	if err := ParamBinder(c.CObject, ctx); err != nil {
+	if err := ParamBinder(currentStruct, ctx); err != nil {
 		return echo.NewHTTPError(http.StatusBadRequest, "No or invalid model provided.")
 	}
 
@@ -25,16 +23,16 @@ func (c *WebHandler) CreateWeb(ctx echo.Context) error {
 	}
 
 	// Check rights
-	if !c.CObject.CanCreate(&currentUser) {
+	if !currentStruct.CanCreate(&currentUser) {
 		models.Log.Noticef("%s [ID: %d] tried to create while not having the rights for it", currentUser.Username, currentUser.ID)
 		return echo.NewHTTPError(http.StatusForbidden)
 	}
 
 	// Create
-	err = c.CObject.Create(&currentUser)
+	err = currentStruct.Create(&currentUser)
 	if err != nil {
 		return HandleHTTPError(err)
 	}
 
-	return ctx.JSON(http.StatusCreated, c.CObject)
+	return ctx.JSON(http.StatusCreated, currentStruct)
 }

routes/crud/delete.go

@@ -8,8 +8,12 @@ import (
 
 // DeleteWeb is the web handler to delete something
 func (c *WebHandler) DeleteWeb(ctx echo.Context) error {
+
+	// Get our model
+	currentStruct := c.EmptyStruct()
+
 	// Bind params to struct
-	if err := ParamBinder(c.CObject, ctx); err != nil {
+	if err := ParamBinder(currentStruct, ctx); err != nil {
 		return echo.NewHTTPError(http.StatusBadRequest, "Invalid URL param.")
 	}
 
@@ -18,12 +22,12 @@ func (c *WebHandler) DeleteWeb(ctx echo.Context) error {
 	if err != nil {
 		return echo.NewHTTPError(http.StatusInternalServerError)
 	}
-	if !c.CObject.CanDelete(&user) {
+	if !currentStruct.CanDelete(&user) {
 		models.Log.Noticef("%s [ID: %d] tried to delete while not having the rights for it", user.Username, user.ID)
 		return echo.NewHTTPError(http.StatusForbidden)
 	}
 
-	err = c.CObject.Delete()
+	err = currentStruct.Delete()
 	if err != nil {
 		return HandleHTTPError(err)
 	}

routes/crud/helper.go

@@ -9,10 +9,13 @@ import (
 // WebHandler defines the webhandler object
 // This does web stuff, aka returns json etc. Uses CRUDable Methods to get the data
 type WebHandler struct {
-	CObject interface {
+	EmptyStruct func() CObject
+}
+
+// CObject is the definition of our object, holds the structs
+type CObject interface {
 	models.CRUDable
 	models.Rights
-	}
 }
 
 // HandleHTTPError does what it says

routes/crud/read_all.go

@@ -8,17 +8,20 @@ import (
 
 // ReadAllWeb is the webhandler to get all objects of a type
 func (c *WebHandler) ReadAllWeb(ctx echo.Context) error {
+	// Get our model
+	currentStruct := c.EmptyStruct()
+
 	currentUser, err := models.GetCurrentUser(ctx)
 	if err != nil {
 		return echo.NewHTTPError(http.StatusInternalServerError, "Could not determine the current user.")
 	}
 
 	// Get the object & bind params to struct
-	if err := ParamBinder(c.CObject, ctx); err != nil {
+	if err := ParamBinder(currentStruct, ctx); err != nil {
 		return echo.NewHTTPError(http.StatusBadRequest, "No or invalid model provided.")
 	}
 
-	lists, err := c.CObject.ReadAll(&currentUser)
+	lists, err := currentStruct.ReadAll(&currentUser)
 	if err != nil {
 		return HandleHTTPError(err)
 	}

routes/crud/read_one.go

@@ -8,14 +8,16 @@ import (
 
 // ReadOneWeb is the webhandler to get one object
 func (c *WebHandler) ReadOneWeb(ctx echo.Context) error {
+	// Get our model
+	currentStruct := c.EmptyStruct()
 
 	// Get the object & bind params to struct
-	if err := ParamBinder(c.CObject, ctx); err != nil {
+	if err := ParamBinder(currentStruct, ctx); err != nil {
 		return echo.NewHTTPError(http.StatusBadRequest, "No or invalid model provided.")
 	}
 
 	// Get our object
-	err := c.CObject.ReadOne()
+	err := currentStruct.ReadOne()
 	if err != nil {
 		return HandleHTTPError(err)
 	}
@@ -26,10 +28,10 @@ func (c *WebHandler) ReadOneWeb(ctx echo.Context) error {
 	if err != nil {
 		return echo.NewHTTPError(http.StatusInternalServerError, "Could not determine the current user.")
 	}
-	if !c.CObject.CanRead(&currentUser) {
+	if !currentStruct.CanRead(&currentUser) {
 		models.Log.Noticef("%s [ID: %d] tried to read while not having the rights for it", currentUser.Username, currentUser.ID)
 		return echo.NewHTTPError(http.StatusForbidden, "You don't have the right to see this")
 	}
 
-	return ctx.JSON(http.StatusOK, c.CObject)
+	return ctx.JSON(http.StatusOK, currentStruct)
 }

routes/crud/update.go

@@ -4,17 +4,16 @@ import (
 	"code.vikunja.io/api/models"
 	"github.com/labstack/echo"
 	"net/http"
-	"reflect"
 )
 
 // UpdateWeb is the webhandler to update an object
 func (c *WebHandler) UpdateWeb(ctx echo.Context) error {
-	// Re-initialize our model
+
-	p := reflect.ValueOf(c.CObject).Elem()
+	// Get our model
-	p.Set(reflect.Zero(p.Type()))
+	currentStruct := c.EmptyStruct()
 
 	// Get the object & bind params to struct
-	if err := ParamBinder(c.CObject, ctx); err != nil {
+	if err := ParamBinder(currentStruct, ctx); err != nil {
 		return echo.NewHTTPError(http.StatusBadRequest, "No or invalid model provided.")
 	}
 
@@ -23,16 +22,16 @@ func (c *WebHandler) UpdateWeb(ctx echo.Context) error {
 	if err != nil {
 		return echo.NewHTTPError(http.StatusInternalServerError, "Could not determine the current user.")
 	}
-	if !c.CObject.CanUpdate(&currentUser) {
+	if !currentStruct.CanUpdate(&currentUser) {
 		models.Log.Noticef("%s [ID: %d] tried to update while not having the rights for it", currentUser.Username, currentUser.ID)
 		return echo.NewHTTPError(http.StatusForbidden)
 	}
 
 	// Do the update
-	err = c.CObject.Update()
+	err = currentStruct.Update()
 	if err != nil {
 		return HandleHTTPError(err)
 	}
 
-	return ctx.JSON(http.StatusOK, c.CObject)
+	return ctx.JSON(http.StatusOK, currentStruct)
 }

routes/routes.go

@@ -77,7 +77,9 @@ func RegisterRoutes(e *echo.Echo) {
 	a.GET("/users", apiv1.UserList)
 
 	listHandler := &crud.WebHandler{
-		CObject: &models.List{},
+		EmptyStruct: func() crud.CObject {
+			return &models.List{}
+		},
 	}
 	a.GET("/lists", listHandler.ReadAllWeb)
 	a.GET("/lists/:list", listHandler.ReadOneWeb)
@@ -86,14 +88,18 @@ func RegisterRoutes(e *echo.Echo) {
 	a.PUT("/namespaces/:namespace/lists", listHandler.CreateWeb)
 
 	taskHandler := &crud.WebHandler{
-		CObject: &models.ListTask{},
+		EmptyStruct: func() crud.CObject {
+			return &models.ListTask{}
+		},
 	}
 	a.PUT("/lists/:list", taskHandler.CreateWeb)
 	a.DELETE("/tasks/:listtask", taskHandler.DeleteWeb)
 	a.POST("/tasks/:listtask", taskHandler.UpdateWeb)
 
 	listTeamHandler := &crud.WebHandler{
-		CObject: &models.TeamList{},
+		EmptyStruct: func() crud.CObject {
+			return &models.TeamList{}
+		},
 	}
 	a.GET("/lists/:list/teams", listTeamHandler.ReadAllWeb)
 	a.PUT("/lists/:list/teams", listTeamHandler.CreateWeb)
@@ -101,7 +107,9 @@ func RegisterRoutes(e *echo.Echo) {
 	a.POST("/lists/:list/teams/:team", listTeamHandler.UpdateWeb)
 
 	listUserHandler := &crud.WebHandler{
-		CObject: &models.ListUser{},
+		EmptyStruct: func() crud.CObject {
+			return &models.ListUser{}
+		},
 	}
 	a.GET("/lists/:list/users", listUserHandler.ReadAllWeb)
 	a.PUT("/lists/:list/users", listUserHandler.CreateWeb)
@@ -109,7 +117,9 @@ func RegisterRoutes(e *echo.Echo) {
 	a.POST("/lists/:list/users/:user", listUserHandler.UpdateWeb)
 
 	namespaceHandler := &crud.WebHandler{
-		CObject: &models.Namespace{},
+		EmptyStruct: func() crud.CObject {
+			return &models.Namespace{}
+		},
 	}
 	a.GET("/namespaces", namespaceHandler.ReadAllWeb)
 	a.PUT("/namespaces", namespaceHandler.CreateWeb)
@@ -119,7 +129,9 @@ func RegisterRoutes(e *echo.Echo) {
 	a.GET("/namespaces/:namespace/lists", apiv1.GetListsByNamespaceID)
 
 	namespaceTeamHandler := &crud.WebHandler{
-		CObject: &models.TeamNamespace{},
+		EmptyStruct: func() crud.CObject {
+			return &models.TeamNamespace{}
+		},
 	}
 	a.GET("/namespaces/:namespace/teams", namespaceTeamHandler.ReadAllWeb)
 	a.PUT("/namespaces/:namespace/teams", namespaceTeamHandler.CreateWeb)
@@ -127,7 +139,9 @@ func RegisterRoutes(e *echo.Echo) {
 	a.POST("/namespaces/:namespace/teams/:team", namespaceTeamHandler.UpdateWeb)
 
 	namespaceUserHandler := &crud.WebHandler{
-		CObject: &models.NamespaceUser{},
+		EmptyStruct: func() crud.CObject {
+			return &models.NamespaceUser{}
+		},
 	}
 	a.GET("/namespaces/:namespace/users", namespaceUserHandler.ReadAllWeb)
 	a.PUT("/namespaces/:namespace/users", namespaceUserHandler.CreateWeb)
@@ -135,7 +149,9 @@ func RegisterRoutes(e *echo.Echo) {
 	a.POST("/namespaces/:namespace/users/:user", namespaceUserHandler.UpdateWeb)
 
 	teamHandler := &crud.WebHandler{
-		CObject: &models.Team{},
+		EmptyStruct: func() crud.CObject {
+			return &models.Team{}
+		},
 	}
 	a.GET("/teams", teamHandler.ReadAllWeb)
 	a.GET("/teams/:team", teamHandler.ReadOneWeb)
@@ -144,7 +160,9 @@ func RegisterRoutes(e *echo.Echo) {
 	a.DELETE("/teams/:team", teamHandler.DeleteWeb)
 
 	teamMemberHandler := &crud.WebHandler{
-		CObject: &models.TeamMember{},
+		EmptyStruct: func() crud.CObject {
+			return &models.TeamMember{}
+		},
 	}
 	a.PUT("/teams/:team/members", teamMemberHandler.CreateWeb)
 	a.DELETE("/teams/:team/members/:user", teamMemberHandler.DeleteWeb)