controller

utron controllers are structs that implement the Controller interface. To help make utron usable, utron provides a BaseController which implements the Controller interface and offers additional conveniences to help in composing reusable code.

You get all the benefits of BaseController by embedding it in your struct. Our TODO Controller is in the controller/todo.go

package controllers

import (
    "net/http"
    "strconv"

    "github.com/gernest/utron"
    "github.com/gernest/utron/fixtures/todo/models"
    "github.com/gorilla/schema"
)

var decoder = schema.NewDecoder()

type TODO struct {
    *utron.BaseController
    Routes []string
}

func (t *TODO) Home() {
    todos := []*models.Todo{}
    t.Ctx.DB.Order("created_at desc").Find(&todos)
    t.Ctx.Data["List"] = todos
    t.Ctx.Template = "index"
    t.HTML(http.StatusOK)
}
func (t *TODO) Create() {
    todo := &models.Todo{}
    req := t.Ctx.Request()
    req.ParseForm()
    if err := decoder.Decode(todo, req.PostForm); err != nil {
        t.Ctx.Data["Message"] = err.Error()
        t.Ctx.Template = "error"
        t.HTML(http.StatusInternalServerError)
        return
    }

    t.Ctx.DB.Create(todo)
    t.Ctx.Redirect("/", http.StatusFound)
}

func (t *TODO) Delete() {
    todoID := t.Ctx.Params["id"]
    ID, err := strconv.Atoi(todoID)
    if err != nil {
        t.Ctx.Data["Message"] = err.Error()
        t.Ctx.Template = "error"
        t.HTML(http.StatusInternalServerError)
        return
    }
    t.Ctx.DB.Delete(&models.Todo{ID: ID})
    t.Ctx.Redirect("/", http.StatusFound)
}

func NewTODO() *TODO {
    return &TODO{
        Routes: []string{
            "get;/;Home",
            "post;/create;Create",
            "get;/delete/{id};Delete",
        },
    }
}

func init() {
    utron.RegisterController(NewTODO())
}

Note that we registered our controller by calling utron.RegisterController(NewTODO()) in the init function so as to make utron aware of our controller. See Routing section below for more explanation of what the controller is doing.