javascript - Rails 4: Upvote/Downvote with coffeescript -


it's similar here on stackoverflow- can upvote comment , when marked orange arrow. however, have 2 icons(on & off) upvote , 2 downvote. problem when click on upvote, changes icon 'on', good, when click on downvote after that, upvote stays same(with on icon). so, 2 'on' icons.

the goal: when upvote/downvote , decide change vote, icon previous choice should 'off'

-my current code-

<div class="thumbsup">     <%= link_to image_tag('othericons/thumbsup_off.png', height: '20', width: '20', id: "imgclickandchange", :onclick => "window.changeimage($(this))"),  like_post_comment_path(comment.post_id, comment), method: :put, :remote => true %> </div>  <div class="thumbsdown">   <%= link_to image_tag('othericons/thumbsdown_off.png', height: '20', width: '20', id: "imgclickandchange", :onclick => "window.toggleimage($(this))"), dislike_post_comment_path(comment.post_id, comment), method: :put, :remote => true %> </div>

coffeescript

window.changeimage = (source) ->     console.log "called changeimage(source)"     $source = $(source)     imagepath = $source.attr("src")     if imagepath && imagepath == "/assets/othericons/thumbsup_off.png"       console.log "thumbsup off"       $source.attr("src", "/assets/othericons/thumbsup_on.png")     else       console.log "thumbsup on"       $source.attr("src", "/assets/othericons/thumbsup_off.png")  window.toggleimage = (source) ->     console.log "called changeimage(source)"     $source = $(source)     imagepath = $source.attr("src")     if imagepath && imagepath == "/assets/othericons/thumbsdown_off.png"       console.log "thumbsdown off"       $source.attr("src", "/assets/othericons/thumbsdown_on.png")     else       console.log "thumbsdown on"       $source.attr("src", "/assets/othericons/thumbsdown_off.png")

you'd better handling data server:

#app/controllers/votes_controller.rb def      #your code      status = "on"      respond_to |format|          format.js { render json: status.to_json }      end end  #same dislike, except status = "off"

then can handle image with ajax:success callback:

$(document).on "ajax:success", "#imgclickandchange", (data) ->     $(this).attr("src"), "/assets/othericons/thumbsup_"+ data +".png")

currently, don't know how coffeescript firing? it's not bound events?


Comments

Post a Comment

Popular posts from this blog

apache - Remove .php and add trailing slash in url using htaccess not loading css -

i have add following code htaccess file removing .php extension , add trailing slash urls. worked fine reduced page loading speed , css code not loading @ all. pages ugly. please help rewriteengine on rewritebase / ## hide .php extension snippet # externally redirect /dir/foo.php /dir/foo rewritecond %{the_request} ^[a-z]{3,}\s([^.]+)\.php [nc] rewriterule ^ %1/ [r,l] # add trailing slash rewritecond %{request_filename} !-f rewritecond %{request_uri} !/$ rewriterule . %{request_uri}/ [l,r=301] # internally forward /dir/foo /dir/foo.php rewritecond %{request_filename} !-d rewritecond %{request_filename}.php -f rewriterule ^(.*?)/?$ $1.php [l] we can rewrite urls using .htaccess files. before writing in .htaccess files need verify kind of server using. can check server adding a <?php phpinfo(); ?> in php page. ensure mod_rewrite module enabled in apache server. can identified checking phpinfo included page. common methods used url rewriting follows ...
Read more

javascript - jQuery show full size image on click -

pretty self explanatory not workking . i want display full image when user click on image... yes know there tons of plugins but i want keep simple. any idea ? css : .full { display: none; width: 500px; height: 500px; margin-left: 100px; margin-top: -300px; position: fixed; background-color: #f00; z-index: 6; } .thumbnail { width: 50px; height: 50px; } html: <img class="thumbnail" src="http://4.bp.blogspot.com/-uhbdp2esxng/txneptvi92i/aaaaaaaaaky/upfqis7zto0/s1600/rihanna-wallpaper.jpg"> jquery: $(document).ready(function() { $('.thumbnail').on('click', function() { var img = $('<img />',{src:this.src,'class':'full'}); $('.full').html(img).show(); console.log('done!'); }); }); try looking how jquery works. $(document).ready(function() { $('.thumbnail').on('click', function(...
Read more