CODEWITHSUNDEEP
ruby-on-railsrubydate
Barna Kovacs
Barna Kovacs

Reputation: 1276

Set date with form for calendar

I'm using a CalendarHelper from here http://railscasts.com/episodes/213-calendars-revised

It displays the current month, which gets picked up like this:

class XyController < ApplicationController
@date ||= Date.today

I would like a form in the view, so I could set this date to any custom date. Something like this:

  = simple_form_for(@date) do |f|
    = f.input ???

I think I'm missing the main point how to set up a form for an instance object, maybe. How could I implement a form to set a date for an instance variable which I set in the controller?

Edit.:

calendar_helper.rb

module CalendarHelper
  def calendar(date = Date.today, &block)
    Calendar.new(self, date, block).table
  end

  class Calendar < Struct.new(:view, :date, :callback)
    HEADER = %w[Hétfő Kedd Szerda Csütörtök Péntek Szombat Vasárnap]
    START_DAY = :monday

    delegate :content_tag, to: :view

    def table
      content_tag :table, class: "calendar" do
        header + week_rows
      end
    end

    def header
      ...
    end

    def week_rows
      ...
    end

    def day_cell(day)
      ...
    end

    def day_classes(day)
      ...
    end

    def weeks
      ...
    end
  end
end

in the view:

  = calendar do |date|
     = date.day

So in the helper there is date = Date.today, i would like to change this to a @date instance, and would like to set that in a simple show view, eg.:

profiles_controller.rb

def show
  @date ||= Date.today
end

And in the view like:

form_for(@date) do |f| f.date_select :date

Something like this, but this obviously isn't working nor correct

Upvotes: 3

Views: 5257

Answers (5)

MrYoshiji
MrYoshiji

Reputation: 54902

You don't have to use the form for this feature, you can use Javascript:

# view
<%= select_date(@date, {}, onchange: 'reload_with_date($(this))') %>

<%= javascript_tag do %>
  # this function will get the date selected
  # and reload the page with the params[:date]
  window.reload_with_date = function(select_tag) {
    var date = Date.parse( $(select_tag).val() ); # get the selected date
    var current_url = window.location.href; # get the current URL
    if(current_url.indexOf('?') > -1) { # if already GET params in URL
      window.location.href = current_url += '&date=' + date.toString();
    } else { 
      window.location.href = current_url += '?date=' + date.toString();
    }
  }
<% end %>

# controller
def calendar
  @date = params[:date] || Date.today
  # will set @date to Date.today if params[:date].nil?

Documentation about select_date:

Don't hesitate to ask about this if you need. Hope this helps!

Upvotes: 1

DavidVII
DavidVII

Reputation: 2283

I suspect that something similar to this would work

#view
= simple_form_for(@date) do |f|
  = f.input :date

Upvotes: 1

Michael Durrant
Michael Durrant

Reputation: 96594

I use this approach:

- if @user.content_date
  %br/
  = f.text_field :content_date, id: 'datepicker', size: 10
  %br/

with this id being used to pick it.

Upvotes: 0

Intrepidd
Intrepidd

Reputation: 20938

Using form_for with a variable is used to bind a form to an object, meaning each field of the form corresponds to a field of the object.

For instance, let's say you have a user field with a username and a age field, you could do the following :

Controller

@user = User.find(params[:id])

View

<%= form_for(@user) do |f| %>
  <%= f.text_field :username %>
  <%= f.text_field :age %>
<% end %>

The username and age fields will automatically be set to the values of the current user.

Now, for your case.

(I'm relying on the old calendars episode on railscast here : http://railscasts.com/episodes/213-calendars )

If your form is logically bound to an active record, you can use the calendar_for helper as if you were using a form_for helper.

So if your object is a user :

calendar_for @user, :year => @date.year, :month => @date.month

Otherwise, you'll have to use a normal form_tag helper without an object bound to it, and use the calendar_date_select_tag helper for inserting your calendar.

More infos on this helper in the docs

Feel free to ask any follow up questions.

Upvotes: 0

dirtydexter
dirtydexter

Reputation: 1073

<%= f.date_select(:dob,:start_year => 1950) %>

this should work for you. This is how I wrote in .html.erb you can write it your way. But this is how a date picker can be generated.

Upvotes: 0

Related Questions