search for: to_f

Thanks for reporting the bug below. You''re absolutely right. Renamed Range#to_s implementation to #mocha_inspect and checked first and last respond_to?(:to_f) as you suggested. Sorry for the delay - I wasn''t monitoring the rubyforge trackers. I am now! Should be fixed in revision 99 of trunk. -- James. http://blog.floehopper.org ---------- Forwarded message ---------- From: noreply at rubyforge.org <noreply at rubyforge.org> Date: 02...

Hey all, In my code, it seems that when I divide two integers, the result is an integer. Is there any way to make it such that when I divide two integers, the result is a double? Any help appreciated, Jin _______________________________________________ Rails mailing list Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org http://lists.rubyonrails.org/mailman/listinfo/rails

...e return @@domain_average else @@domain_average = MyDomain.find_by_sql(["select avg(latency) as latency, avg(datediff(session_end, session_start)) as session_duration from live_logs where domain_id=?"], domain_id])[0] end end The problem is that I¹m using a lot of to_f conversions because type coercions are not happening as I would have expected. Again, for example: foo = MyDomain.find_averages(1) bar = foo[:latency] / 3.0 # fails because foo[:latency] is a string and Ruby won¹t do the coercion zoo = foo[:latency].to_f / 3.0 # succeeds because I did the...

I can''t for the life of me figure this out. Been banging my head on this since the weekend, and can''t see what I''m doing wrong. This code works: image.resize("640x480") image.write(path) I run this and I get the resized file just fine. This doesnt work at all: width = 200 height = 100 dimensions = "#{width}x#{height}"

Have in a module in ./lib: module Pricing def sell_price (cost.to_f)/((100-(margn.to_f))/100) end def sell_price_inc ((product.cost.to_f)/((100-(product.margn.to_f))/100)*1.14) end def charge_excl (sell_price).to_f * quantity end end A model product: class Product < ActiveRecord::Base include Pricing attr_accessible :name, :code, :cost,...

Hello everyone! I''ve noticed, that the book uses double quotes almost everywhere. It is like <%= javascript_include_tag "prototype" %> I''ve checked the "programming ruby, 2ed" book and found that double quotes are most suited when escape sequences and substitutions are required. Isn''t it more semantically correct to write this code like

Just received the news from Tom Mornini. Congrats Ezra for the new Engine Yard site and the blog you will be collaborating. Hope to read you there soon. http://www.engineyard.com/ Jonathan -------------- next part -------------- An HTML attachment was scrubbed... URL: http://rubyforge.org/pipermail/backgroundrb-devel/attachments/20060925/3f251fa4/attachment.html

...reated, :location => @ying } else format.html { render :action => "new" } format.xml { render :xml => @ying.errors, :status => :unprocessable_entity } end end end YING.rb def scale_to_scene(params, scene) x1 = params[:x1].to_f*scene.wscale.to_f y1 = params[:y1].to_i*scene.hscale.to_f width = params[:width].to_f*scene.wscale.to_f height = params[:height].to_f*scene.hscale.to_f img = Magick::Image.read("#{RAILS_ROOT}/ public#{scene.avatar.public_filename}")[0] chopped = img.crop(Magick::ForgetGravity, x...

...i @zoom = 14 if params[:zoom].nil? @map = GMap.new("map_div") # @map.control_init(:large_map => true, :map_type => true) # (inserts map control) # place the map where we want it ( center and zoom level ) @map.center_zoom_init([@group.group_map_stat.lat.to_f, @group.group_map_stat.long.to_f], @zoom) @map.set_map_type_init(GMapType::G_HYBRID_MAP) @sites = @group.sites @sites.each do |site| # draw the circles site.map_stat.circle_image(@zoom) end @all_markers = make_map_markers(@sites, @zoom) @map.overl...

Hi I have the following values pActualCost = 33.00 pPaymentCost = 29.99 So this calculation should leave me with 0.01 pPaymentDifference = pActualCost - pPaymentCost however when doing this in rails, it returns 0.00999999999999801 has anyone got any suggestions to whats going wrong and how I can correct this Thanks Scott -- Posted via http://www.ruby-forum.com/.

...g me that all the test data is with 8 metres of the origin... thanks in advance. clare if their_outcode && their_outcode.size > 0 temp_hwz = HwzPostcode.find(:first, :conditions => [''outcode = ?'',their_outcode]) range_x_left = temp_hwz.x - (postcode_distance.to_f*1.60934 * 1000) range_x_right = temp_hwz.x + (postcode_distance.to_f*1.60934 * 1000) range_y_top = temp_hwz.y + (postcode_distance.to_f*1.60934 * 1000) range_y_bottom = temp_hwz.y - (postcode_distance.to_f*1.60934 * 1000) query += " AND x:[#{range_x_left.to_i} #{range_x_right.to_i}]...

I have the following library code: def normal_time_now return DateTime.now.utc if default_timezone == :utc return DateTime.now end This is dependent upon a setting in config/environment.rb # Make Active Record use UTC-base instead of local time config.active_record.default_timezone = :utc I want to test that I get the expected results with the config set to utc and

Hi, Is there an easy way of querying an active record for a maximum column value? I need to do queries like: SELECT MAX(salary) FROM employees TIA, Jeroen

Hi all - To avoid floating point issues, I''ve decided to store monetary values in cents in the database. However, the user will enter these in dollars and cents. Two questions: 1) How do I do the validation for the currency format? It looks like ActiveRecord truncates the cents since it thinks the field type is a Fixnum. Am I forced to do validation in the controller? 2) Where

...ot = doc.root retstatus = root.elements[''/kml/Response/Status/code''].text if retstatus.to_i == 200 coordinates = root.elements[''/kml/Response/Placemark/Point/coordinates''].text long1, lat1, = coordinates.split('','').map { |v| v.to_f } params[:bookstore][:latitude] = lat1 params[:bookstore][:longitude] = long1 @bookstore = Bookstore.new(params[:bookstore]) if @bookstore.save redirect_to :action => ''add'' flash[:notice] = ''Store was successfully added.''...

...ompany.total_share # => This is summing the old value if changed? if changes["share"] # => Changes to a model are stored in the changes array on the instance, the array has 2 value ["from_value", "to_value"] old_value = changes["share"][0].to_f # => Convert To Float new_value = changes["share"][1].to_f new_total_share = company_total_share - old_value + new_value new_total_share > 100.01 else false # validation succeeds end else false # validation succeeds end end It is worki...

...value=''" + number_to_currency(@new_total_commission, { :precision => 4 }).to_s + "'';" The controller code is as follows in the update_totals method which is called via the observe_field : if @comm_type == "L" @new_total_commission = @new_total_sell.to_f * @converted_rate.to_f else @new_total_commission = @new_total_weight.to_f * @converted_rate.to_f end Outputting debug to the log file shows that the @new_total_commission is being set correctly. The debug information in the browser window for the RJS "trick" produces the following:...

...end def price_override if request.post? @type = params[:type] @price = params[:price] @index = params[:index] unless params[:price].blank? if params[:type] == ''lineitem'' session[:lineitems][params[:index].to_i][1] = params[:price].to_f unless session[:lineitems].nil? elsif params[:type] == ''contract'' session[:contract_lines][params[:index].to_i][5] = params[:price].to_f unless session[:contract_lines].nil? else flash[:error] = "There was a problem completing your request,...

Hi all, I just noticed that in ActiveRecord::ConnectionAdapters::Column.type_cast[1] (and type_cast_code[2]) the type casting for float columns simply does value.to_f, whereas all the others have a rescue or call out to a method, the default implementations of which have rescues or enough logic in that I don''t think they''d fail. Imagine the following: create_table :vehicle do |t| Now, doing some archaeology on trac, I''ve found that...

Hi, Just thought it was weird that Ruby doesn''t automatically cast ints to floats. Seems so un-rubyish irb(main):006:0> 12/16 => 0 irb(main):007:0> 12.to_f / 16.to_f => 0.75 Jeroen