Comments for UW Ruby Blog http://uwruby.com UW Ruby Class Blog! Wed, 10 Mar 2010 02:54:52 +0000 http://wordpress.org/?v=2.7.1 hourly 1 Comment on Week 2 Homework Requirements by Jordan Dobson http://uwruby.com/2009/01/week-2-homework-requirements/comment-page-1/#comment-65 Jordan Dobson Tue, 03 Feb 2009 03:46:47 +0000 http://uwruby.com/2009/01/week-2-homework-requirements/#comment-65 <p>Mark</p> <p>Not sure if you need to check if it's blank. Shouldn't the div class be enough as long as the input is inside it?</p> <p>assert "div.fieldWithErrors input#product_title"</p> <p>Seems like that would work just fine.</p> Mark

Not sure if you need to check if it’s blank. Shouldn’t the div class be enough as long as the input is inside it?

assert “div.fieldWithErrors input#product_title”

Seems like that would work just fine.

]]> Comment on Week 2 Homework Requirements by Mark Holton http://uwruby.com/2009/01/week-2-homework-requirements/comment-page-1/#comment-64 Mark Holton Thu, 29 Jan 2009 22:30:40 +0000 http://uwruby.com/2009/01/week-2-homework-requirements/#comment-64 <p>since the mailing list is 'on the fritz':</p> <p>On Sun, Jan 25, 2009 at 9:26 PM, bill dussler wrote: > > billd$ script/console > Loading development environment (Rails 2.2.2) > >> ActiveRecord::Errors.default_error_messages[:blank] >> >> => "can't be blank" >> >> or: >> >> >> I18n.translate('activerecord.errors.messages.blank') >> => "can't be blank" >> >> Presumably ActiveRecord prepends the field_name to the error message >> when adding it to @errors >> >> I may simply be overthinking this, which wouldn't be the first time ;) >> >> bill</p> <p>Hi Bill, I used a css selector via assert_select to check and see if a particular (expected) field was blank.</p> <p>E.g.: assert_select "div.fieldWithErrors > input#product_title", :text => ""</p> <p>Hope that helps, :Mark</p> since the mailing list is ‘on the fritz’:

On Sun, Jan 25, 2009 at 9:26 PM, bill dussler wrote: > > billd$ script/console > Loading development environment (Rails 2.2.2) > >> ActiveRecord::Errors.default_error_messages[:blank] >> >> => “can’t be blank” >> >> or: >> >> >> I18n.translate(’activerecord.errors.messages.blank’) >> => “can’t be blank” >> >> Presumably ActiveRecord prepends the field_name to the error message >> when adding it to @errors >> >> I may simply be overthinking this, which wouldn’t be the first time ;) >> >> bill

Hi Bill, I used a css selector via assert_select to check and see if a particular (expected) field was blank.

E.g.: assert_select “div.fieldWithErrors > input#product_title”, :text => “”

Hope that helps, :Mark

]]> Comment on Your Week 5 Homework by Mark Holton http://uwruby.com/2008/04/your-week-5-homework/comment-page-1/#comment-16 Mark Holton Thu, 24 Apr 2008 18:57:15 +0000 http://uwruby.com/?p=24#comment-16 <p>Hi Aaron, Can you place a link to download the class 5 samples? cheers, :Mark</p> Hi Aaron, Can you place a link to download the class 5 samples? cheers, :Mark

]]> Comment on Week 4 Extra Credit Test by Garrick West http://uwruby.com/2008/04/week-4-extra-credit-test/comment-page-1/#comment-15 Garrick West Wed, 23 Apr 2008 21:08:27 +0000 http://uwruby.com/?p=21#comment-15 <p>Must have been late last night;) I got it running ok with the smaller data file included in the test data. Based on what's going on here, my first thought is to see if there's a reasonable replacement or optimization for Fixnum plus operator and perhaps think about how we're using String indexing.</p> <p>%total %self total self wait child calls Name</p> <h2>/opt/local/lib/ruby/gems/1.8/gems/ruby-prof-0.6.0/lib/ruby-prof/abstract_printer.rb:26: warning: treating Symbol as an integer</h2> <p>/opt/local/lib/ruby/gems/1.8/gems/ruby-prof-0.6.0/lib/ruby-prof/abstract_printer.rb:30: warning: treating Symbol as an integer /opt/local/lib/ruby/gems/1.8/gems/ruby-prof-0.6.0/lib/ruby-prof/abstract_printer.rb:30: warning: treating Symbol as an integer 100.00% 0.00% 0.39 0.00 0.00 0.39 0 #encode_alac (./lib/week_4.rb:23} ./lib/week_4.rb:23 0.06 0.06 0.00 0.00 32768/32768 Fixnum#| 0.00 0.00 0.00 0.00 1/1 Fixnum#== 0.00 0.00 0.00 0.00 2/2 String#length 0.08 0.08 0.00 0.00 40960/40960 Fixnum#+ 0.05 0.05 0.00 0.00 24578/24578 String#[]= 0.08 0.08 0.00 0.00 40960/40960 String#[] 0.03 0.03 0.00 0.00 16384/16384 Fixnum#& 0.03 0.03 0.00 0.00 16384/16384 Fixnum#>> 0.02 0.02 0.00 0.00 8193/8193 Fixnum#< 0.03 0.03 0.00 0.00 16384/16384 Fixnum#<< 0.00 0.00 0.00 0.00 1/1 Kernel#dup</p> <p>-Garrick</p> Must have been late last night;) I got it running ok with the smaller data file included in the test data. Based on what’s going on here, my first thought is to see if there’s a reasonable replacement or optimization for Fixnum plus operator and perhaps think about how we’re using String indexing.

%total %self total self wait child calls Name

/opt/local/lib/ruby/gems/1.8/gems/ruby-prof-0.6.0/lib/ruby-prof/abstract_printer.rb:26: warning: treating Symbol as an integer

/opt/local/lib/ruby/gems/1.8/gems/ruby-prof-0.6.0/lib/ruby-prof/abstract_printer.rb:30: warning: treating Symbol as an integer /opt/local/lib/ruby/gems/1.8/gems/ruby-prof-0.6.0/lib/ruby-prof/abstract_printer.rb:30: warning: treating Symbol as an integer 100.00% 0.00% 0.39 0.00 0.00 0.39 0 #encode_alac (./lib/week_4.rb:23} ./lib/week_4.rb:23 0.06 0.06 0.00 0.00 32768/32768 Fixnum#| 0.00 0.00 0.00 0.00 1/1 Fixnum#== 0.00 0.00 0.00 0.00 2/2 String#length 0.08 0.08 0.00 0.00 40960/40960 Fixnum#+ 0.05 0.05 0.00 0.00 24578/24578 String#[]= 0.08 0.08 0.00 0.00 40960/40960 String#[] 0.03 0.03 0.00 0.00 16384/16384 Fixnum#& 0.03 0.03 0.00 0.00 16384/16384 Fixnum#>> 0.02 0.02 0.00 0.00 8193/8193 Fixnum#< 0.03 0.03 0.00 0.00 16384/16384 Fixnum#<< 0.00 0.00 0.00 0.00 1/1 Kernel#dup

-Garrick

]]> Comment on Week 4 Extra Credit Test by Aaron Patterson http://uwruby.com/2008/04/week-4-extra-credit-test/comment-page-1/#comment-14 Aaron Patterson Wed, 23 Apr 2008 20:40:15 +0000 http://uwruby.com/?p=21#comment-14 <p>I think we'll discuss profiling this more in class tonight!</p> I think we’ll discuss profiling this more in class tonight!

]]> Comment on Week 4 Extra Credit Test by Garrick West http://uwruby.com/2008/04/week-4-extra-credit-test/comment-page-1/#comment-13 Garrick West Wed, 23 Apr 2008 07:14:06 +0000 http://uwruby.com/?p=21#comment-13 <p>Well, Benchmark was a waste of time and RubyProf seems to spin into infinity for me. These were my "establish a beachhead" approach to figuring out where to spend my optimizing time (e.g. WTF is taking the most time in the 1st place, eh? Anyone else have any luck with either of these (or come up with another) profiling tool to start zeroing in on where the cycles are being spent?</p> <p>--Garrick</p> Well, Benchmark was a waste of time and RubyProf seems to spin into infinity for me. These were my “establish a beachhead” approach to figuring out where to spend my optimizing time (e.g. WTF is taking the most time in the 1st place, eh? Anyone else have any luck with either of these (or come up with another) profiling tool to start zeroing in on where the cycles are being spent?

–Garrick

]]> Comment on Week 3 Slides by UW Ruby Blog » Blog Archive » Week 3 Homework Update http://uwruby.com/2008/04/week-3-slides/comment-page-1/#comment-12 UW Ruby Blog » Blog Archive » Week 3 Homework Update Mon, 14 Apr 2008 17:20:12 +0000 http://uwruby.com/?p=12#comment-12 <p>[...] found a problem with the Week 3 homework and posted in the comments for week 3. In the week 3 homework, test_add_to_metaclass should be [...]</p> [...] found a problem with the Week 3 homework and posted in the comments for week 3. In the week 3 homework, test_add_to_metaclass should be [...]

]]> Comment on Week 3 Slides by Aaron Patterson http://uwruby.com/2008/04/week-3-slides/comment-page-1/#comment-11 Aaron Patterson Mon, 14 Apr 2008 16:58:12 +0000 http://uwruby.com/?p=12#comment-11 <p>Absolutely. I think I had 1.9 on the brain. As we discussed in class, 1.8 is not very consistent when it comes to Strings vs Symbols. Changing those to strings is the right thing to do! Good catch!</p> Absolutely. I think I had 1.9 on the brain. As we discussed in class, 1.8 is not very consistent when it comes to Strings vs Symbols. Changing those to strings is the right thing to do! Good catch!

]]> Comment on Week 3 Slides by Garrick West http://uwruby.com/2008/04/week-3-slides/comment-page-1/#comment-10 Garrick West Sun, 13 Apr 2008 23:05:54 +0000 http://uwruby.com/?p=12#comment-10 <p>There's a slight 1.9isim in the Week 3 homework. It seems the test case for test_add_to_the_metaclass is expecting the array of method names returned from Kernel#singleton_methods to be symbols. However, in 1.8 they are Strings as it is discussed here: http://eigenclass.org/hiki.rb?Changes+in+Ruby+1.9 in the section "Kernel#singleton_methods, Kernel#methods". Is it OK for us to go ahead and change the test case to the 1.8 version?</p> <p>--Garrick West</p> There’s a slight 1.9isim in the Week 3 homework. It seems the test case for test_add_to_the_metaclass is expecting the array of method names returned from Kernel#singleton_methods to be symbols. However, in 1.8 they are Strings as it is discussed here: http://eigenclass.org/hiki.rb?Changes+in+Ruby+1.9 in the section “Kernel#singleton_methods, Kernel#methods”. Is it OK for us to go ahead and change the test case to the 1.8 version?

–Garrick West

]]> Comment on Week 3 Slides by Leigh Caplan http://uwruby.com/2008/04/week-3-slides/comment-page-1/#comment-9 Leigh Caplan Fri, 11 Apr 2008 05:26:12 +0000 http://uwruby.com/?p=12#comment-9 <p>I'm not sure if this was brought up in class, but I found this wonderful explanation of metaclasses by the always poignant Why:</p> <p>http://whytheluckystiff.net/articles/seeingMetaclassesClearly.html</p> I’m not sure if this was brought up in class, but I found this wonderful explanation of metaclasses by the always poignant Why:

http://whytheluckystiff.net/articles/seeingMetaclassesClearly.html

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