I am coding a web application in ruby on rails.
I have a set of text boxes in each one there is a character and i want to glue all these text boxes in order to make one word.
The text boxes are like this :
1 %>
any ideas ??
Well for starters dont use a for loop, they ugly.
Second I wouldn't use the text_field helper rather the text_field tag
<% (1..10).each do |n| %>
<%= text_field_tag "password[#{n}]" %>
<% end %>
That will return the password all nicely chunked up
Related
I am very new to Ruby, i need to add a space between a Label and Combo box in ruby file.
Sample code:
def render_search_combo_box(project, selected_value=nil)
return unless User.current.logged?
s = "<select id='search_options' name='search_options'>"
end
i have tried adding 'nbsp;' before 'select' but no result came.
Thanks in advance.
I think, it`ll be better to solve your problem using CSS.
For example (in css file):
#search_options {margin-left: '10px'}
However, why you not just use rails form helpers to build your form?
You can achieve same result like this (in view):
<% if User.current.logged? %>
<%= select_tag "search_options" %>
<% end %>
Guy
this is just simple form in ruby
<%= form_tag("/page/create", method: "get") do %>
<% 5.times do %>
<%= text_field_tag :Name,(params[:Name]), size: 10 %><br>
<% end %>
<%= submit_tag("send") %>
<% end%>
why in my control the #Name=params['Name'] not work with me well ?
always not gives me any thing ?
You are posting the same paramter multiple times. This leads to an empty params['Name'], except you fill out the last of the input fields.
Most frameworks discard multiple parameters with the same name, using only the last one in the parameter list.
If you want to pass an array of fields to your controller, name your field with trailing open-close square brackets like this: text_field_tag 'Name[]'. This makes Rails populate params['Name'] with an array of your input's values.
Note that :Name[] is not a valid Symbol in Ruby, so you'll have to use a String as the first argument to the text_field_tag helper.
I think you have a few things going on here:
Changing <%= text_field_tag :Name,(params[:Name]), size: 10 %><br> to <%= text_field_tag :Name, size: 10 %><br> might be the first step in moving forward.
Here's the code that will yield an array (I believe it's an array) of 13 page titles. I'd like to have titles 0-5 be in its own div, 6-8 in a second div and 9-12 in a third, for dropdown menus. I couldn't find this exact question/answer here.
<% #cms_site.pages.root.children.published.each. do |page| %>
<%= link_to page.label, page.full_path %>
<% end %>
Thank you!
What have you attempted? #each is not a very good use for this case. You might want to separate it into 3 different loops like so:
<% #cms_site.pages.root.children.published[0,5].each do |page| %>
<%= link_to page.label, page.full_path %>
<% end %>
<% #cms_site.pages.root.children.published[6,8].each do |page| %>
<%= link_to page.label, page.full_path %>
<% end %>
<% #cms_site.pages.root.children.published[9,12].each do |page| %>
<%= link_to page.label, page.full_path %>
<% end %>
EDIT
It seems like you're having some logic problems, it'd be wise for you to attempt it first at least.
The code up there should work but it's not really DRY and it can be extracted into maybe a helper method that uses the chapters for the iterator or possibly use a different iterator (e.g. each_with_index) and handle the check for each index in the block. There's many ways to go about doing what you asked.
Basically, if you're dealing with an array and you want to take the exact same elements from it each time, here's how to slice it:
# Your Array
elements = [1,2,3,4,5,6,7,8,9,10,11,12]
# This will give you three arrays inside one array. The first will be first six
# elements starting from 0, the second is 3 elements starting from 6, etc.
arrays = [ elements[0,6], elements[6,3], elements[9,3] ]
Now you can iterate through the array and reuse the code to generate the code you want.
arrays.each do |ar|
# Now render for each array as you please, and reuse the same code.
end
I have an app where users can sign up with Facebook, in which case I take the Facebook image, or they can sign up using regular authentication, in which case they're uploading a photo using CarrierWave gem.
Because of some sort of conflict, I had to create a column in the database (:image)to store the url to the Facebook image, and then a different column (:dimage) to store the url for the image if they signed up using the non-facebook sign up.
So when it comes time to display the user, I'm checking to see if there's an :image, and, if not, then displaying the other :dimage.
However, I don't want to require them to upload an image, in which case, I want to display an anon image (here represented by the rails.png). However, the Rails.png isn't showing up (just a broken image path), so I'm assuming there's some sort of error with my if else syntax because the image_tag("rails.png") is taken straight from the api
<% if user.image %>
<%= image_tag user.image %>
<% elsif user.dimage %>
<%= image_tag user.dimage_url(:thumb).to_s %>
<% else %>
<%= image_tag("rails.png") %>
<% end %>
The generated html on the rails.png
<img alt="Assets" src="/assets/">
Use the present? method to check if the attribute is not empty:
<% if user.image.present? %>
<%= image_tag user.image %>
<% elsif user.dimage.present? %>
<%= image_tag user.dimage_url(:thumb).to_s %>
<% else %>
<%= image_tag("rails.png") %>
<% end %>
You'll save yourself a headache or two because in Ruby the only falsehoods are false and nil. This means that the empty string "" will actually return true.
You need to look at look into user.image.nil? user.image.empty? and user.image.blank? depending on what you're using and apply the same to the rest of your conditional. You need to find out specifically what your looking for or the if else won't give you what you want. I would try empty first which checks if something is nil or is an empty string.
When you create a new rails application, rails stores its logo in PROJECT_PATH/app/assets/images folder. Could you check if that image exists?
I have build a module to add translations for each standard topic. Theses topic got many standard options and you can translate it directly in page.
I got an issue with my form about the edit view.
When i display a translation it's repeat all value of the f.input :value each time he have one and i want it to display with the each of standard value.
The question is how i can iterate my input field :value in the form to display only once per standard value and not repeat all value translated by standard value.
when i want create a new one all workings fine. It's just about the iterate field who is repeated how many times he got a field in the table.
the gist for my code :
https://gist.github.com/266562670cd8dab28548
Change:
<%= #preference_topic.preference_topic_options.each_with_index do |option, index| %>
<%= f.fields_for option.preference_topic_option_translations.first, option do |translate_form| %>
to:
<%= #preference_topic.preference_topic_options.each_with_index do |option, index| %>
<%= f.fields_for option.preference_topic_option_translations.first || option.preference_topic_option_translations.build, option do |translate_form| %>