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POModify strings in Rails?
 

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  1. POModify strings in Rails?
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    <p>So I'm new to Rails (teaching myself as a senior project in high school), and I'm trying to figure out how to modify these strings.</p> <p>Let's say someone writes the following string in a form: "you know you are a geek when"</p> <p>How can I automatically change it to this: "You know you are a geek when..."?</p> <p>I need Rails to check the case of the first letter and check for the three dots then modify the string as necessary. I've looked <a href="http://api.rubyonrails.org/classes/ActiveSupport/CoreExtensions/String/Inflections.html" rel="nofollow noreferrer" title="here">here</a>, but I can't find anything that would work. </p> <p>Thanks a lot!</p> <p><strong>EDIT:</strong> I'm trying to implement what Reuben Mallaby suggested, but I'm having trouble. Here's the relevant part of the lists_controller.rb file, and below that is the method in the list.rb model.</p> <pre><code>def update @list = List.find(params[:id]) @list.fixlistname respond_to do |format| if @list.update_attributes(params[:list]) flash[:notice] = 'List was successfully updated.' format.html { redirect_to(@list) } format.xml { head :ok } else format.html { render :action =&gt; "edit" } format.xml { render :xml =&gt; @list.errors, :status =&gt; :unprocessable_entity } end end end </code></pre> <p>and..</p> <pre><code>def fixlistname new_title = title.humanize + (title.ends_with("...") ? "" : "...") end </code></pre> <p><strong>EDIT 2:</strong> I want the string to be modified before it goes into the database, and this is the error message I'm getting:</p> <blockquote> <p>undefined method `ends_with' for "You know you are a track runner when":String</p> </blockquote> <p><strong>GOT IT WORKING! THANKS EVERYONE!</strong> </p>
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    1. USDaniel O'Connor
    1. USDaniel O'Connor
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    1. COBy 'it's not working' you mean when you display @list the title isn't updated? If so, that's because you aren't doing anything with your updated string. The 'new_title' is local and will be returned from the function, but you aren't grabbing it in the controller f_title = @list.fixlistname Will get the return from fixlistname, and it's up to you what to do with it. If you only want it for display and don't want to store the updated string you should just call fixlistname on the model from your view.
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      1. USTheClair
    2. COHi, sorry I wasn't more clear! I want it to modify the string so the fixed string can be saved to the database. The error message I'm getting is "undefined method `ends_with' for "You know you are a geek when":String" Thanks
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      1. USDaniel O'Connor
    3. COYou forgot the question mark on `.ends_with?`
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