I have a timepicker that inputs the time like this: 12:30.
After submitting the show of the model also shows the time like this 12:30.
But when i want to edit the file the time shows up like this: 2000-01-01 12:30:00 UTC
How do is set up the correct format fot this problem?
You have to use Ruby in-built time formatting like this:
t = Time.now #=> 2007-11-19 08:37:48 -0600
t.strftime("%I:%M") #=> "08:37"
More info and explanation can be found here
<%= f.input :start_time, as: :string, input_html: { value: resource.start_time && resource.start_time.strftime("%H:%M") } %>
Fixed it by using this(NOTE: I am using inherited resources and simple form)
Related
I have a datetime that gets rendered into a hidden form field using simple_form. The field is called next_event: The erb line looks like this:
<%= f.input :next_event, as: :hidden, label: false %>
I want this string to be the datetime in the user's local time zone. If I set a breakpoint in the controller code, I can see that the variable is in the correct time zone (in this case, MDT):
:next_event => Wed, 28 May 2014 15:30:00 MDT -06:00,
However, when it gets rendered in HTML, the date time is converted to UTC:
<input class="hidden" id="foo_next_event" name="foo[next_event]" type="hidden" value="2014-05-28 21:30:00">
What can I do to get simple_form to stop converting to utc?
You can manually specify the value so that the TimeZone conversion doesn't take place:
<%= f.input :next_event, as: :hidden, label: false, input_html: { value: f.object.next_event.to_s } %>
Another option... may be to use the *_before_type_cast method for your attribute. So in the model define:
def next_event_before_type_cast
self[:next_event].to_s
end
With this approach you should get the result you want without having to worry about formatting of the date in forms here (or elsewhere).
I develop an application in Ruby on Rails 4 with TimeZone per request.
I want to use a datetime picker (http://xdsoft.net/jqplugins/datetimepicker/) in my application to replace the default Simple_form datetime input (5 combo-boxes...).
For this kind of datetime picker (I search for others, it's the same), in my view, I have to use a "string" field, like this :
<%= f.input :done_at, as: :string, input_html: { :data => { :behaviour => "datetimepicker" } } %>
When I post the form, Rails take care of the timezone and store in the database the time in UTC.
For example, I put "2014-03-14 19:45:07" (local time is Paris, so UTC +0100) in the field, and I have "2014-03-14 18:45:07" in the database, in UTC. It's correct.
But when I want to edit the information, Rails fill in the field with a wrong time. The offset timezone is lost and I have "2014-03-14 18:45:07" in the field (the UTC time), so 1 hour before the correct time.
How can I have the correct time taking care of the user timezone ? (not in UTC)
I tried the solution found on http://jessehouse.com/blog/2013/11/15/working-with-timezones-and-ruby-on-rails/ to override the display of dates, but it doesn't work.
def done_at
super.in_time_zone(time_zone) if super && time_zone
end
If in my view, I put #action.done_at, the time is correct but not in the field.
Thanks,
Fred
Set the value of the input explicitly. You can move #object.done_at.in_time_zone(time_zone) to a helper if you want
<%= f.input :done_at, as: :string, input_html: { :data => { :behaviour => "datetimepicker" }, :value => #object.done_at.in_time_zone(time_zone).strftime('%d-%m-%Y %H:%M') } %>
I'm creating a new Rails 3 app, and in it I use DateTime for a couple of fields, however every datetime field standard has UTC behind it (in a view), like:
2010-10-10 16:19:00 UTC
How do I get rid of the UTC part?
UPDATE: here's what I have so far:
<%= trip.truckleft.strftime("%Y-%m-%d %H:%M") %>
So all I have to do now is put that in a helper, but isn't there a better more universal way?
I looked at some other posts, that suggested creating a time_formats.rb in initializers, however I didn't have any success doing that.
Thanks for your help, much appreciated!
Another -- perhaps now preferred -- way is to use Rails' internationalization and localization support. There's a lot to learn in that guide, so the tl;dr version is this:
<%= l trip.truckleft, :format => :long %>
There are a few predefined date and time formats like :long available to you already for English, and you can add your own in config/locales/en.yml by following the YAML structure in those examples. If you're not getting heavily into the whole i18n/l10n thing just yet and looking at the l method all the time is confusing, you can also use:
<%= trip.truckleft.to_formatted_s(:long) %>
Here is what finally worked for me:
I created a new file in:
config/initializers/
named: time_formats.rb
and added this to that file:
Time::DATE_FORMATS[:default] = "%Y-%m-%d %H:%M"
Then I saved, restarted the server and it started to work.
I'm using i18n to format my dates and have this in en.yml:
date:
formats:
default: "%m/%d/%Y"
I wanted to reuse that format for how the models show their dates, so my config/initializers/time_formats.rb contains this:
Date::DATE_FORMATS[:default] = lambda { |date| I18n.l(date) }
To be exact, you should put these in your initializers:
Date::DATE_FORMATS[:default] = "%m-%d-%Y"
Time::DATE_FORMATS[:default] = "%m-%d-%Y %H:%M"
When having datetime, the second one will work (for example: created_at for in models).
You can put the following line at the end of your config/environment.rb file:
Date::DATE_FORMATS[:default] = "%Y-%m-%d %H:%M"
for rails 3
add to config/environment.rb
my_datetime_formats = { :default => '%F %T' } #or any other you like
my_date_formats = { :default => '%F' } #or any other you like
Time::DATE_FORMATS.merge!(my_datetime_formats)
Date::DATE_FORMATS.merge!(my_date_formats)
(the difference from other answers - is merge! method)
I'd like my dates in the mm/dd/year format in text fields. However, they currently displays as 2010-03-26.
Is there a global setting I can set to change this?
I tried the following, which seems to update the .to_s method, but form fields stay the same.
ActiveSupport::CoreExtensions::Date::Conversions::DATE_FORMATS.merge!(:default => '%m/%d/%Y')
Thanks
You have to register the default format in an initializer.
Add this line to the config/initializers/date_time_formats.rb.
Date::DATE_FORMATS[:default] = '%m/%d/%Y'
# if you want to change the format of Time display then add the line below
Time::DATE_FORMATS[:default]= '%m/%d/%Y %H:%M:%S'
# if you want to change the DB date format.
Time::DATE_FORMATS[:db]= '%m/%d/%Y %H:%M:%S'
Now in the script\console lets test the format.
>> Date.today.to_s
=> "03/14/2010"
>> Time.now.to_s
=> "03/14/2010 13:20:55"
I don't know if there is a global setting for that anywhere, I just do it in the ERB.
<%= text_field_tag("air_date_date", air_date.blank? ? "" : air_date.strftime("%m/%d/%Y"), :class => "date-input text") %>
Alternatively, you can factor this out into a helper function to make it DRY.
I know this is an awfully old question, but you could use date_field instead of text_field. Perhaps that wasn't an option when you asked this question originally.
It displays the date in mm/dd/yyyy, which is your intent.
<%= date_field :column_name %>
The date_select form helper provides a "bare bones" date selector.
My simple date validation regex is not working correctly...
validates_format_of :dob, :with => /\d{2}\/\d{2}\/\d{4}/, :message => "^Date must be in the following format: mm/dd/yyyy"
What am I missing here? I'm trying to validate that a date is in the following format: mm/dd/yyyy - When I enter what should be valid data, I still get the error message.
Thanks for the help so far. Here's a snippet of code from my form that is passing the dob value in:
<tr>
<td>
<%= f.label :dob, "Date of Birth: " %>
</td>
<td>
<%= calendar_date_select_tag "user[dob]", "", :format => :american, :year_range => 50.years.ago..0.years.ago %>
</td>
</tr>
I think it may have something to do with my use of this js calendar plugin. A related problem is that my dob value is not maintained in the field if the post fails validation - the previously entered date value clears out...
Thanks!
Tom
You are probably using a string field to store a date. Consequently, any helpers that expect a DateTime or Time value will not work properly. You will need to investigate multiparameter assignments in Rails to figure out the proper way to do what you want to do (multiparemeter assignments is the magic behind sending 4 fields to Rails and get them converted to a DateTime or Time object).
In other words: if you are using a true DateTime field (as you should for this case) the validates_format_of will not have any effect (or will have adverse effects)
Found an excellent gem / plugin for all your date / time validations.
validates_timeliness
http://github.com/adzap/validates_timeliness
I've not tested your code within a Rails app, but your regular expression looks good to me. Try this test program:
#!/usr/bin/ruby
str = '08/24/2009'
regex = /\d{2}\/\d{2}\/\d{4}/
if str =~ regex
print 'matched', "\n"
else
print 'did not match', "\n"
end
Your regular expression matches. That suggests the problem is elsewhere.
You also might think about trying more general solutions for parsing a date in Ruby, such as the Date.parse method of the Date class. This does a little bit more validation than your regular expression, and it also provides some useful methods for converting dates between different formats.
Ahhh! Forcing date formats on the end-user when Rails implicitly converts them is a bad thing for usability, along with being more work for you (as you've seen).
If you've got a date/time attribute in your model, Rails will do its best to convert via Date.Parse (http://www.ruby-doc.org/core/classes/Date.html#M000644), e.g.
u = Somemodel.find :first
u.created_at
=> Tue Nov 20 15:44:18 -0500 2007
u.created_at = '2008/07/03'
=> "2008/07/03"
u.created_at
=> Thu Jul 03 00:00:00 -0400 2008
u.created_at = '05/10/1980'
=> "05/10/1980"
u.created_at
=> Sat May 10 00:00:00 -0400 1980
The regex looks correct to me. A useful resource is http://www.rubyxp.com/, which will test your regular expression against a given string. Indeed, the regex you have matches a date I typed into rubyxp.
Perhaps there's an issue in getting the entered data -- any chance the field is really called da?
Another item you may find useful: validates_timeliness, a rails plugin to validate dates and times. Why just validate the date format when you can check if it's a real date -- after all, 99/99/9999 will validate against your regex, but you may not really want to accept that.
You can try using current date to convert it into a format something like his:
def validate_date_format(value)
current_date = DateTime.now
begin
DateTime.strptime(current_date, value)
rescue
raise 'Invalid Format'
end
end
You might also want to look into the Chronic Gem (http://chronic.rubyforge.org/) which does natural date parsing. So you can enter in :
Next tuesday at 9pm
And it will interpret it correctly.