I trying to update multi times a page from inside a loop, obviously
the loop cannot be outside the update block
as a test I wrote :
def reloading
@tables = ["table_lockers", "table_instructors",
"table_members",
"table_analyses"]
render :update do |page|
@tables.each do |table|
page.insert_html :bottom, ''table_list'',
"<li
id=''#{table}''>#{table}</li>"
page.visual_effect :highlight, "#{table}"
sleep 3
end
end
end
upon click on a start link remote Ajax call to the reloading action,
this intend
to insert the names of the tables one by one into a list area on the
displayed page... with 3 sec between each insertion :
<ul>table_list
table_lockers
table_instructors
table_members
table_analyses
this doesn''t work as expected as the render id performed at the end of
the loop.... not in between
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On Mar 10, 2011, at 8:18 AM, Erwin wrote:> I trying to update multi times a page from inside a loop, obviously > the loop cannot be outside the update block > > as a test I wrote : > > def reloading > @tables = ["table_lockers", "table_instructors", "table_members", > "table_analyses"] > render :update do |page| > @tables.each do |table| > page.insert_html :bottom, ''table_list'', "<li > id=''#{table}''>#{table}</li>" > page.visual_effect :highlight, "#{table}" > sleep 3 > end > end > end > > upon click on a start link remote Ajax call to the reloading action, > this intend > to insert the names of the tables one by one into a list area on the > displayed page... with 3 sec between each insertion : > > <ul>table_list > table_lockers > table_instructors > table_members > table_analyses > > this doesn''t work as expected as the render id performed at the end of > the loop.... not in between > >This isn''t going to work if you do it in Ruby. That''s one request, which equals one render and one flush to the browser. You''re going to have to refactor this so that the timer is in the JavaScript, and each request is for the next table. You''ll have to work out some sort of semaphore between the ruby code (which knows how many of these things to do) and the JavaScript, which does not. One way would be to have the ruby code write an inline JavaScript block into the table code when it knows there are more to come, and omit it if not. Walter -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
Thanks ... I am looking at the http://railscasts.com/episodes/229-polling-for-changes this is quite obvious ( because it''s async..) ... only the client page can request periodic updates ... On 10 mar, 15:28, Walter Lee Davis <wa...-HQgmohHLjDZWk0Htik3J/w@public.gmane.org> wrote:> On Mar 10, 2011, at 8:18 AM, Erwin wrote: > > > > > > > > > > > I trying to update multi times a page from inside a loop, obviously > > the loop cannot be outside the update block > > > as a test I wrote : > > > def reloading > > @tables = ["table_lockers", "table_instructors", "table_members", > > "table_analyses"] > > render :update do |page| > > @tables.each do |table| > > page.insert_html :bottom, ''table_list'', "<li > > id=''#{table}''>#{table}</li>" > > page.visual_effect :highlight, "#{table}" > > sleep 3 > > end > > end > > end > > > upon click on a start link remote Ajax call to the reloading action, > > this intend > > to insert the names of the tables one by one into a list area on the > > displayed page... with 3 sec between each insertion : > > > <ul>table_list > > table_lockers > > table_instructors > > table_members > > table_analyses > > > this doesn''t work as expected as the render id performed at the end of > > the loop.... not in between > > This isn''t going to work if you do it in Ruby. That''s one request, > which equals one render and one flush to the browser. You''re going to > have to refactor this so that the timer is in the JavaScript, and each > request is for the next table. You''ll have to work out some sort of > semaphore between the ruby code (which knows how many of these things > to do) and the JavaScript, which does not. One way would be to have > the ruby code write an inline JavaScript block into the table code > when it knows there are more to come, and omit it if not. > > Walter-- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.