iris/_examples/mvc/repository/web/controllers/movie_controller.go

// file: web/controllers/movie_controller.go

package controllers

import (
	"errors"

	"github.com/kataras/iris/v12/_examples/mvc/repository/datamodels"
	"github.com/kataras/iris/v12/_examples/mvc/repository/services"

	"github.com/kataras/iris/v12"
)

// MovieController is our /movies controller.
type MovieController struct {
	// Our MovieService, it's an interface which
	// is binded from the main application.
	Service services.MovieService
}

// Get returns list of the movies.
// Demo:
// curl -i http://localhost:8080/movies
//
// The correct way if you have sensitive data:
// func (c *MovieController) Get() (results []viewmodels.Movie) {
// 	data := c.Service.GetAll()
//
// 	for _, movie := range data {
// 		results = append(results, viewmodels.Movie{movie})
// 	}
// 	return
// }
// otherwise just return the datamodels.
func (c *MovieController) Get() (results []datamodels.Movie) {
	return c.Service.GetAll()
}

// GetBy returns a movie.
// Demo:
// curl -i http://localhost:8080/movies/1
func (c *MovieController) GetBy(id int64) (movie datamodels.Movie, found bool) {
	return c.Service.GetByID(id) // it will throw 404 if not found.
}

// PutBy updates a movie.
// Demo:
// curl -i -X PUT -F "genre=Thriller" -F "poster=@/Users/kataras/Downloads/out.gif" http://localhost:8080/movies/1
func (c *MovieController) PutBy(ctx iris.Context, id int64) (datamodels.Movie, error) {
	// get the request data for poster and genre
	file, info, err := ctx.FormFile("poster")
	if err != nil {
		return datamodels.Movie{}, errors.New("failed due form file 'poster' missing")
	}
	// we don't need the file so close it now.
	file.Close()

	// imagine that is the url of the uploaded file...
	poster := info.Filename
	genre := ctx.FormValue("genre")

	return c.Service.UpdatePosterAndGenreByID(id, poster, genre)
}

// DeleteBy deletes a movie.
// Demo:
// curl -i -X DELETE -u admin:password http://localhost:8080/movies/1
func (c *MovieController) DeleteBy(id int64) interface{} {
	wasDel := c.Service.DeleteByID(id)
	if wasDel {
		// return the deleted movie's ID
		return iris.Map{"deleted": id}
	}
	// right here we can see that a method function can return any of those two types(map or int),
	// we don't have to specify the return type to a specific type.
	return iris.StatusBadRequest
}