model view controller - MVC Rails Planning - i'm starting rails , i'm building app stores films info, user can watch film , give grade on web application. i have coded cinema model, controller , views. now, have 2 questions: should need create model , controller grading? in case, should create or should wait , create first users model , controller? yes, on model , controller grades. that'd feasible way maintain track of who's graded what. it's create first, i'd start users, since grades depend on both films , users. ruby-on-rails model-view-controller
html - Submenu setup with jquery and effect 'fold' - i want open submenu jquery effect fold, problem if user "hover effect" fast menu remain open, how can avoid this, jquery code is: $('ul.mainmenu li').hover( function() { $(this).children('ul').show('fold', 570); }, function() { $(this).children('ul').hide('fold', 500); } ); my jsfiddle link is: http://jsfiddle.net/9wkbf/ updated fiddle the reason behind problem is, first event $(this).children('ul').show('fold', 570); queued , until completes, sec animation not start. the next snippet can workaround $('ul.mainmenu > li').hover( function() { $(this).children('ul').show('fold', 570); }, function() { $('ul:not(.mainmenu)').hide('fold', 500); } ); *important note : work current scenario. jquery html css
How to get the selection which is being dragged in d3.js? - i'm using d3 behavior api implement drag , drop functionality on chart. there're circles on chart, want create circles able move around when user dragging them. but don't know how reference of circle beingness dragged user. in below code, , how reference of selection , current mouse position? var drag = d3.behavior.drag() .on("dragstart", function(){ //do drag start stuff... console.log('drag start'); }) .on("drag", function(){ //hey we're dragging, let's update stuff }) .on("dragend", function(){ //we're done, end stuff console.log('drag end'); }); somebody please help! you current selection from d3.selection(this) if want current mouse...
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