I followed a tutorial on rails3 sorting, not sure which one, and i got it working. I have a table, and depending on the button pushed, I wanted to be able to sort on one of the columns.
Here is an example of the buttons:
<%= link_to "Time", :sort => "transit_time" %>
The column looks like this:
<%= result.transit_time%>
(multiple times obviously)
In the controller, I originally did:
#results = Result.order(params[:sort])
And this worked.
However, now I have added a where clause to be able to query more specifically, so my query looks like this:
#results = Result.where("(NOT(train) OR :traincheckbox)AND . . . :end_location => params[:end_location]}).order(params[:sort])
THIS NO LONGER WORKS. The reason is because when I click the button, it reloads the page, and eliminates all the query string. When I first load the page the query string looks like this:
"http://localhost:3000/results?utf8=%E2%9C%93&start_address=24+Grosvenor+Square&start_l . . .etc."
and once I push one of the sort buttons it turns to this:
http://localhost:3000/results?sort=escore
All my results disappear because there is nothing in the query string, nothing to be passed into the WHERE clause.
ANY IDEA HOW TO KEEP THOSE PARAMS PRESENT?
Sorry that is long, but I'm a relative beginner at rails and I need help.
Thanks!
First of all, I would highly recommend you use the MetaWhere and MetaSearch Gem
One way you can keep the variables present in your next screen is to store them in hidden fields (of a form), then when you click sort, pass those hidden fields over to form your query.
Hope this helps!
Related
so basically I have a bunch of HTML strings in a MySQL table and I am trying to display then through EJS.
For instance, I have a string that looks like this is a link with some <code>code</code> next to it. In my code I try to display it in that way.
<%- listOfStrings["myString"] -%>
However, as you probably guessed when reading the title, the string seems to be escaped when displaying on the screen.
What's even weirder to me is that I have two tables with such strings, and it works for the first one, while it doesn't for the second one. One difference though, is that the first one is hardcoded, while the second one can be edited through some tool on my website. Encoding is utf32_unicode_ci for both tables, if that matters.
For debugging purposes I tried to store the aforementioned strings in a js variable and display them in the console: then it seems like <and > characters are all escaped for some reason. Is there an explanation to this behavior, and if so how to fix it so that HTML renders correctly?
Thanks for your help!
You can try it :
<%=listOfStrings["myString"]%>
I have implemented search option in my project. It searches records on basis of many fields given by user And then displays record according to it. Now I want those filtered records to be exported as excel. How can I do that?
You'll need to merge the search parameters. The parameter merging allows you to reuse whatever parameters were passed in the page and apply the xls format. Example below.
=link_to 'Export', users_path(request.parameters.merge({:format => :xls}))
(tested on Rails 5.0)
In my case, adding download: 'projects.xlsx' solved my problem!
<%= link_to 'Export',
projects_path(request.parameters.merge({format: :xlsx})),
download: 'projects.xlsx' %>
I have found a method where I can send params in download link.
So after the user submits the form and result is displayed url contains all the params of the form. So what I have done is that I have taken the current url(which contains all the search params) and append the format as xls to it. Example is given below -
This solution works fine for me
Environment: Rails 3.2.1
SimpleForm 2.0.1
I have encountered users here and elsewhere asking similar questions via Google, but I have not yet found answers!
I want to provide a series of checkboxes to define a contact's preferences.
I made a small test app using something I noticed on the simple_form demo app.
My Contact model has a string attribute named "post_pref"
In ContactsHelper I included this:
def contact_preference_options
['High Resolution','Web Resolution','Browser','Hard Copy Proof']
end
In my _form partial I include this:
<%= f.input :post_pref, :collection => contact_preference_options, :as => :check_boxes %>
I started the server and created a new Contact.
In the New and Edit views, the checkboxes show up. I checked "Browser" as a preference for my new Contact and submitted it.
The result of checking one or several preferences is a mess.
First:
when I go to edit a record, the current preferences aren't checked.
Second:
In the Show and Index views I see this:
--- - Browser - ''
In the console, I see this:
---\n- Browser\n- ''\n
What I want to see is this:
Browser
My questions are:
Where are the dashes coming from?
Where are the new lines coming from?
Why is there an empty string?
Why aren't the previously selected checkboxes checked when I edit a Contact?
Note: when I did the above with radio buttons or select options it works fine. But I want the contact to potentially have several preferences so I need checkboxes.
Interestingly, I tried the same thing with formtastic instead of simple_form and got almost identical results. What's the trick for checkboxes?
Thanks a million for any help.
For me it looked like it was saving the array, so I did some preprocessing of the parameters before saving it:
lifestyle = params[:lifestyle]
lifestyle[:languages] = lifestyle[:languages].reject(&:blank?).join(",")
if #lifestyle.update_attributes(lifestyle)
...
In this example, my checkboxes was languages under the lifestyle model. Hope this helps.
I am creating a sortable list of items from my database using the railscast found here: http://railscasts.com/episodes/228-sortable-table-columns
The sorting works fine, but when the page displays, it seems to print out some sort of hash above the table according to the number items. Each unit looks something like this:
#<ActiveRecord::Relation:0x00000006f9a500>
I've checked the html code and there is nothing in it that prints anything. Is this some sort of debug statement? How do I get it to stop printing?
You are printing object, but you need only one attribute.
Do something like this:
<%= your_object.YOUT_ATTRIBUTE %>
Did someone try to integrate puret into rails_admin? I can't make a language switch to edit different translations :(
Changing I18n.locale forces whole rails_admin to use specified locale.
Now I got the solution. The two can work together well. In short:
Delete the pureted column(s) in your model
If you have the column pureted still in your model, rails form helper will bypass puret. That is, if a model called Post has a field called contents to be i18ned, the table posts SHOULD NOT have the column contents.
Actually we should use globalize3 instead. With this you do not need to remove the original column. And puret doens't support nested attributes assignment. globalize3 works very well.