Forms

// app/controllers/session_controller/password_form.go
package sessioncontroller

type PasswordForm struct {
	Username string `validate:"presence"`
	Password string `validate:"presence"`
}

func (c *SessionsController) GenPasswordForm() (*PasswordForm, error) {
	form := &PasswordForm{}
	if err := c.Decode(form); err != nil {
		return nil, err
	}
	return form, nil
}

// app/controllers/session_controller/sessioncontroller.go
package sessioncontroller

import (
	"net/http"

	"golazy.dev/lazycontroller"
	"golazy.dev/lazyerrors"
)

func (c *SessionsController) New() error {
	c.Set("form", &PasswordForm{})
	return nil
}

func (c *SessionsController) Create(form *PasswordForm) error {
	if err := lazyerrors.Validator(form); err != nil {
		c.Status(http.StatusUnprocessableEntity)
		c.Set("form", form)
		c.Set("session_errors", err)
		return c.Render("new")
	}
	return c.RedirectToRoute("home", lazycontroller.RedirectStatus(http.StatusSeeOther))
}

{{/* app/views/session/new.html.tpl */}}
{{ form_for .form . (form_action "/session") (form_file "session_fields") }}

{{/* app/views/session/_session_fields.html.tpl */}}
{{ text_field "Username" }}
{{ password_field "Password" }}
{{ range field_errors_for .session_errors "username" }}
  <p>{{.}}</p>
{{ end }}
{{ submit_button "Sign in" }}