142 lines
3.8 KiB
Go
142 lines
3.8 KiB
Go
package crud
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import (
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"fmt"
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"git.kolaente.de/konrad/list/models"
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"github.com/labstack/echo"
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"net/http"
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)
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// WebHandler defines the webhandler object
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// This does web stuff, aka returns json etc. Uses CRUDable Methods to get the data
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type WebHandler struct {
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CObject interface {
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models.CRUDable
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models.Rights
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}
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}
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// ReadOneWeb is the webhandler to get one object
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func (c *WebHandler) ReadOneWeb(ctx echo.Context) error {
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// Get the ID
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id, err := models.GetIntURLParam("id", ctx)
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if err != nil {
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return ctx.JSON(http.StatusBadRequest, models.Message{"Invalid ID."})
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}
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// TODO check rights
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// Get our object
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err = c.CObject.ReadOne(id)
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if err != nil {
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if models.IsErrListDoesNotExist(err) {
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return ctx.JSON(http.StatusNotFound, models.Message{"Not found."})
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}
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return ctx.JSON(http.StatusInternalServerError, models.Message{"An error occured."})
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}
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return ctx.JSON(http.StatusOK, c.CObject)
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}
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// ReadAllWeb is the webhandler to get all objects of a type
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func (c *WebHandler) ReadAllWeb(ctx echo.Context) error {
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currentUser, err := models.GetCurrentUser(ctx)
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if err != nil {
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return ctx.JSON(http.StatusInternalServerError, models.Message{"Could not determine the current user."})
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}
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lists, err := c.CObject.ReadAll(¤tUser)
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if err != nil {
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fmt.Println(err)
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return ctx.JSON(http.StatusInternalServerError, models.Message{"Could not get."})
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}
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return ctx.JSON(http.StatusOK, lists)
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}
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// UpdateWeb is the webhandler to update an object
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func (c *WebHandler) UpdateWeb(ctx echo.Context) error {
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// Get the object
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if err := ctx.Bind(&c.CObject); err != nil {
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return ctx.JSON(http.StatusBadRequest, models.Message{"No model provided."})
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}
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// Get the ID
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id, err := models.GetIntURLParam("id", ctx)
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if err != nil {
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return ctx.JSON(http.StatusBadRequest, models.Message{"Invalid ID."})
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}
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// Check if the user has the right to do that
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currentUser, err := models.GetCurrentUser(ctx)
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if err != nil {
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return ctx.JSON(http.StatusInternalServerError, models.Message{"Could not determine the current user."})
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}
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// Do the update
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err = c.CObject.Update(id, ¤tUser)
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if err != nil {
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if models.IsErrNeedToBeListAdmin(err) {
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return echo.NewHTTPError(http.StatusForbidden, "You need to be list admin to do that.")
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}
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return echo.NewHTTPError(http.StatusInternalServerError)
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}
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return ctx.JSON(http.StatusOK, c.CObject)
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}
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// CreateWeb is the handler to create an object
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func (c *WebHandler) CreateWeb(ctx echo.Context) error {
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// Get the object
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if err := ctx.Bind(&c.CObject); err != nil {
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return ctx.JSON(http.StatusBadRequest, models.Message{"No model provided."})
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}
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// Get the user to pass for later checks
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currentUser, err := models.GetCurrentUser(ctx)
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if err != nil {
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return echo.NewHTTPError(http.StatusInternalServerError, "Could not determine the current user.")
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}
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// Create
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err = c.CObject.Create(¤tUser)
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if err != nil {
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fmt.Println(err)
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return echo.NewHTTPError(http.StatusInternalServerError)
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}
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return ctx.JSON(http.StatusOK, c.CObject)
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}
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// DeleteWeb is the web handler to delete something
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func (c *WebHandler) DeleteWeb(ctx echo.Context) error {
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// Get the ID
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id, err := models.GetIntURLParam("id", ctx)
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if err != nil {
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return ctx.JSON(http.StatusBadRequest, models.Message{"Invalid ID."})
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}
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// Check if the user has the right to delete
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user, err := models.GetCurrentUser(ctx)
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if err != nil {
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return echo.NewHTTPError(http.StatusInternalServerError)
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}
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err = c.CObject.Delete(id, &user)
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if err != nil {
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if models.IsErrNeedToBeListAdmin(err) {
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return echo.NewHTTPError(http.StatusForbidden, "You need to be the list admin to delete a list.")
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}
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if models.IsErrListDoesNotExist(err) {
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return echo.NewHTTPError(http.StatusNotFound, "This list does not exist.")
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}
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return echo.NewHTTPError(http.StatusInternalServerError)
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}
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return ctx.JSON(http.StatusOK, models.Message{"Successfully deleted."})
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}
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