date_select -> params ok but nil

rubyonrails-talk
1

hi,

im kinda stuck…

<%= form_for(@event) do |f| %>

<%= f.label :from_date %>

<%= date_select :event, :from_date %>

…

def create

p params[:event].nil?

p params[:event][:name]

p params[:event][:from_date]

if params[:event][:from_date].empty?

params[:event][:from_date] = Date.today

end

…

→

Started POST “/events” for 127.0.0.1 at 2014-11-19 17:37:09 -0500

Processing by EventsController#create as HTML

Parameters: {“utf8”=>“✓”, “authenticity_token”=>“JannWb1XCE12AKW4KlR56LAAmIOG1raHJh1ss4v0RBA=”, “event”=>{“name”=>“”, “from_date(1i)”=>“2014”, “from_date(2i)”=>“11”, “from_date(3i)”=>“19”, “to_date(1i)”=>“2014”, “to_date(2i)”=>“11”, “to_date(3i)”=>“19”}, “commit”=>“Create”}

…

…def instantiate_controller_and_action_names"

“URL: http://localhost:3000/events”

“Fullpath: /events”

“events”

“Action: create”

“Controller: events”

false

“”

nil

→ why are my event date attributes nil/blank?

tia

tom

2

What makes you think they are? The parameters are there.

What version of Ruby/Rails are you running?

3

hi

because of this:

def create

p params[:event].nil?

p params[:event][:name]

p params[:event][:from_date]

results in:

false

“”

nil

ENV

/ruby-1.9.3-p194@my_gemset

first i thought it has something to do with gem decent_exposure, but i have disabled that again…

4

On Thu, Nov 20, 2014 at 6:40 AM, tom <tomabr

--> why are my event date attributes nil/blank?

i dont see "from_date".

"from_date(1i)" not same as "from_date"

kind regards -botp

5

because of this:

p params[:event].nil? ....

p params.inspect would be more generally useful...

ENV /ruby-1.9.3-p194@my_gemset

What version of Ruby/Rails are you running?

Again, what version of Rails?

And is there a reason to be using such an old Ruby?

6

You’re using the f.label and date_select helpers. Try using f.date_select ?

7

→ why are my event date attributes nil/blank?

The date is not sent as a single attribute, but rather one per dropdown that date_select sends (thus from_date(1i) etc).

When those attributes are assigned to your model, they are combined into a single object by ActiveRecord.

You can either check for the subparts explicitly, or move the “default to today” behavior to the model instead.

–Matt Jones

8

hi

thx for all.

the reason why i asked is because some code i have used from the internet was checking: params[:event][:from_date].empty? , but mine was always nil (as above). after assigning the params to a new model and checking then fixed it for me.