Font selector using radio button

Discussion in 'Ruby' started by Tom Dunn, Aug 10, 2009.

  1. Tom Dunn

    Tom Dunn Guest

    I have looked all around to try and find an answer to this. I have the
    Agile book and although it has lots of information, it has relatively
    little on radio buttons. I have a website in which I want users to be
    able to format their posts in relation to font and color. My goal is to
    allow them to click a radio button next to their choice of font and
    their choice of color. So far I have been unable to find anything in
    the book, on this site, or on the internet to help me out.


    Here is my controller:

    class PostsController < ApplicationController
    # GET /posts
    # GET /posts.xml
    def index
    @posts = Post.find:)all, :eek:rder => "created_at DESC")

    respond_to do |format|
    format.html # index.html.erb
    format.xml { render :xml => @posts }
    end
    end


    # GET /posts/1
    # GET /posts/1.xml
    def show

    respond_to do |format|
    format.html # show.html.erb
    format.xml { render :xml => @post }
    end
    end

    # GET /posts/new
    # GET /posts/new.xml
    def new
    @post = Post.new


    respond_to do |format|
    format.html # new.html.erb
    format.xml { render :xml => @post }
    end
    end



    # POST /posts
    # POST /posts.xml
    def create
    @post = Post.new(params[:post])


    respond_to do |format|
    if @post.save
    format.html { redirect_to(@post) }
    format.xml { render :xml => @post, :status => :created,
    :location => @post }
    else
    format.html { render :action => "new" }
    format.xml { render :xml => @post.errors, :status =>
    :unprocessable_entity }
    end
    end
    end


    end


    Here is the part of my view of the post form:


    <%= error_messages_for :post %>
    <div id="desc">
    <% form_for(@post) do |f| %>

    #there is other stuff here it just isn't important and is a little
    long.
    #here is where I want the buttons. I just have no idea how to do it.

    </div>



    Sorry if this is something very simple. I am new to ruby and thus don't
    have much experience. Any help would be greatly appreciated.
    --
    Posted via http://www.ruby-forum.com/.
     
    Tom Dunn, Aug 10, 2009
    #1
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  2. In your copy of the Agile book, look at the section entitled "working
    with non-model fields" (section 22.7 or 23.7 depending on which edition
    you have). Replace text_field_tag with radio_button_tag or check_box_tag
    as appropriate. Then your controller can read params[:color] or
    whatever, and style the response appropriately.

    You'll find more info in the Rails API documentation under
    ActionView::Helpers::FormTagHelper - go to http://api.rubyonrails.org/

    However I'm afraid your question has very little to do with Ruby (the
    programming language).

    For help with Rails (the web application framework), you would be best
    advised to ask your question on a Rails mailing list or forum. There are
    some Rails users here, but this is not the primary focus of this mailing
    list.

    For help with styling web pages, you could ask a CSS mailing list.

    If you want the style changes to be reflected immediately when someone
    presses a button, you'll want to use Javascript and/or a Javascript
    helper library (I prefer jQuery over Rails' default Prototype). Again,
    there are separate mailing lists for those.

    HTH,

    Brian.
    --
    Posted via http://www.ruby-forum.com/.
     
    Brian Candler, Aug 10, 2009
    #2
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  3. Tom Dunn

    7stud -- Guest

    Tom Dunn wrote:
    > I have looked all around to try and find an answer to this. I have the
    > Agile book and although it has lots of information, it has relatively
    > little on radio buttons. I have a website in which I want users to be
    > able to format their posts in relation to font and color. My goal is to
    > allow them to click a radio button next to their choice of font and
    > their choice of color. So far I have been unable to find anything in
    > the book, on this site, or on the internet to help me out.



    First, this isn't a forum for rails questions. This is a general ruby
    programming forum. rails is a complex piece of software written in
    ruby. People who use that complex piece of software often hang out
    together and discuss various issues that they are having with the
    software. You need to locate one of those places. They are generally
    titled "Ruby on Rails" or just "Rails".

    Second, your question really has nothing to do with rails nor with ruby
    programming in general. rails software executes on "the server side".
    A person looking at your web page is on the "client side". In between
    the server side and the client side is a bunch of cables commonly called
    the internet. The font and color choices that you want to give your
    users can all be handled on the client side with javascript and css.
    The server side shouldn't be bothered with such mundane details. You
    can add a simple onclick javascript function to your radio buttons that
    you can use to immediately change any css property, e.g. font size and
    colors.

    I guess if you want to save the user's choices for the next time they
    visit, you also need to set a cookie. Once again, you can do that with
    javascript. If you set a cookie with javascript, then all subsequent
    requests that the client sends to the server will include the cookie.
    Then you can have your rails app read the cookie and send back a page
    that has the font and color set according to the choices read from the
    cookie.

    In any case, that is all stuff you should have learned before ever even
    attempting rails. Web programming requires a general knowledge of html,
    css, javascript, and at least one server side programming language (e.g.
    php, java, python ruby). If someone led you to believe that learning
    rails would obviate the need to learn those subjects first, they were
    sadly mistaken. You are flying blind without those subjects, and if
    any little thing goes wrong with your rails program, you have no skills
    to solve the problem.



    --
    Posted via http://www.ruby-forum.com/.
     
    7stud --, Aug 10, 2009
    #3
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