Handle regular expression in ruby

Question

In my controller i m taking some records from table. I am trying to send records records to Js and show in my page.

 @item_list = TransferDetail.find(:all) - Code to get data from table

The output of @item_list as

[{:source_id=>8, :object=>"11375810_0", :prefix=>"a",:unit=>"0", :description=>"xxxxx"}, {:source_id=>8, :object=>"11375810_1", :prefix=>"b", :unit=>"0", :description=>"yyyyy"}]

Sending records to JS side

WebView.execute_js("replaceItemList('#{@item_list}')")

In Js side

function replaceItemList(item_list){
  alert (item_list);
 }

Alert result as like this

[{:source_id=&gt;8, :object=&gt;&quot;11375810_0&quot;, :prefix=&gt;&quot;a&quot;,:unit=&gt;&quot;0&quot;, :description=&gt;&quot;xxxxx&quot;}, {:source_id=&gt;8, :object=&gt;&quot;11375810_1&quot;, :prefix=&gt;&quot;b&quot;, :unit=&gt;&quot;0&quot;, :description=&gt;&quot;yyyyy&quot;}]

Any one can suggest me to how can i show in my view page.

I know how to parse below and show in view page.

"{\"transferType\":\"D\", \"accountNumber\":\"132\", \"employeeId\":\"23\", \"orderedByPhone\":\"2423453453\", \"deliveryInstructions\":\"fdgfghvbn\"}"

Is possible to convert my @item_list value like this or Let me know some other suggestion

I don't understand the question title at all. In any case, wouldn't it make more sense to send JSON rather than a string representation of an array of objects? — Dave Newton, Apr 14 '12 at 20:12
Try using to_json `WebView.execute_js("replaceItemList('#{@item_list.to_json}')")` — Joshua Cheek, Apr 14 '12 at 20:26
@Joshua: This will fail if there's a single quote in any of the fields, so `.gsub("'", "\\'")` is necessary as well. — Niklas B., Apr 14 '12 at 22:59

score 0 · Answer 1 · answered Apr 20 '12 at 18:14

My requirement is send table (database records) to front end and to show. So i did like below def transfer
@item_list = TransferDetail.find(:all) preferred_accessories_content = get_preferred_accessories_content WebView.execute_js("replaceItemDetails('#{preferred_accessories_content}')") end

def get_preferred_accessories_content
    preferred_accessories_content = ""
    @item_list.each do |pa|
      preferred_accessories_content+= "<tr>" + "<td> #{pa.description} </td>"+"</tr>"
    end
    preferred_accessories_content
end

Here the result of "preferred_accessories_content" is normal html table row, so i can append this row to my view page through JS.

Handle regular expression in ruby

1 Answers1