diff options
Diffstat (limited to 'guides/source/active_support_core_extensions.md')
| -rw-r--r-- | guides/source/active_support_core_extensions.md | 27 |
1 files changed, 13 insertions, 14 deletions
diff --git a/guides/source/active_support_core_extensions.md b/guides/source/active_support_core_extensions.md index 336f93bc0f..7da2b711f5 100644 --- a/guides/source/active_support_core_extensions.md +++ b/guides/source/active_support_core_extensions.md @@ -343,7 +343,7 @@ This method escapes whatever is needed, both for the key and the value: ```ruby account.to_query('company[name]') -# => "company%5Bname%5D=Johnson<plus>%26<plus>Johnson" +# => "company%5Bname%5D=Johnson+%26+Johnson" ``` so its output is ready to be used in a query string. @@ -1124,7 +1124,7 @@ NOTE: Defined in `active_support/core_ext/class/subclasses.rb`. #### `descendants` -The `descendants` method returns all classes that are `<` than its receiver: +The `descendants` method returns all classes that are `<` than its receiver: ```ruby class C; end @@ -1151,7 +1151,7 @@ Extensions to `String` #### Motivation -Inserting data into HTML templates needs extra care. For example, you can't just interpolate `@review.title` verbatim into an HTML page. For one thing, if the review title is "Flanagan & Matz rules!" the output won't be well-formed because an ampersand has to be escaped as "&amp;". What's more, depending on the application, that may be a big security hole because users can inject malicious HTML setting a hand-crafted review title. Check out the "section about cross-site scripting in the [Security guide](security.html#cross-site-scripting-xss) for further information about the risks. +Inserting data into HTML templates needs extra care. For example, you can't just interpolate `@review.title` verbatim into an HTML page. For one thing, if the review title is "Flanagan & Matz rules!" the output won't be well-formed because an ampersand has to be escaped as "&amp;". What's more, depending on the application, that may be a big security hole because users can inject malicious HTML setting a hand-crafted review title. Check out the section about cross-site scripting in the [Security guide](security.html#cross-site-scripting-xss) for further information about the risks. #### Safe Strings @@ -1855,7 +1855,7 @@ NOTE: Defined in `active_support/core_ext/numeric/bytes.rb`. ### Time -Enables the use of time calculations and declarations, like @45.minutes <plus> 2.hours <plus> 4.years@. +Enables the use of time calculations and declarations, like `45.minutes + 2.hours + 4.years`. These methods use Time#advance for precise date calculations when using from_now, ago, etc. as well as adding or subtracting their results from a Time object. For example: @@ -1883,9 +1883,8 @@ converted before use: 1.year.to_f.from_now ``` -In such cases, Ruby's core -Date[http://ruby-doc.org/stdlib/libdoc/date/rdoc/Date.html] and -Time[http://ruby-doc.org/stdlib/libdoc/time/rdoc/Time.html] should be used for precision +In such cases, Ruby's core [Date](http://ruby-doc.org/stdlib/libdoc/date/rdoc/Date.html) and +[Time](http://ruby-doc.org/stdlib/libdoc/time/rdoc/Time.html) should be used for precision date and time arithmetic. NOTE: Defined in `active_support/core_ext/numeric/time.rb`. @@ -2414,7 +2413,7 @@ The method `in_groups_of` splits an array into consecutive groups of a certain s or yields them in turn if a block is passed: -```ruby +```html+erb <% sample.in_groups_of(3) do |a, b, c| %> <tr> <td><%=h a %></td> @@ -3585,7 +3584,7 @@ They are analogous. Please refer to their documentation above and take into acco Time.zone_default # => #<ActiveSupport::TimeZone:0x7f73654d4f38 @utc_offset=nil, @name="Madrid", ...> -# In Barcelona, 2010/03/28 02:00 <plus>0100 becomes 2010/03/28 03:00 <plus>0200 due to DST. +# In Barcelona, 2010/03/28 02:00 +0100 becomes 2010/03/28 03:00 +0200 due to DST. t = Time.local_time(2010, 3, 28, 1, 59, 59) # => Sun Mar 28 01:59:59 +0100 2010 t.advance(:seconds => 1) @@ -3608,7 +3607,7 @@ The method `all_day` returns a range representing the whole day of the current t now = Time.current # => Mon, 09 Aug 2010 23:20:05 UTC +00:00 now.all_day -# => Mon, 09 Aug 2010 00:00:00 UTC <plus>00:00..Mon, 09 Aug 2010 23:59:59 UTC <plus>00:00 +# => Mon, 09 Aug 2010 00:00:00 UTC +00:00..Mon, 09 Aug 2010 23:59:59 UTC +00:00 ``` Analogously, `all_week`, `all_month`, `all_quarter` and `all_year` all serve the purpose of generating time ranges. @@ -3617,13 +3616,13 @@ Analogously, `all_week`, `all_month`, `all_quarter` and `all_year` all serve the now = Time.current # => Mon, 09 Aug 2010 23:20:05 UTC +00:00 now.all_week -# => Mon, 09 Aug 2010 00:00:00 UTC <plus>00:00..Sun, 15 Aug 2010 23:59:59 UTC <plus>00:00 +# => Mon, 09 Aug 2010 00:00:00 UTC +00:00..Sun, 15 Aug 2010 23:59:59 UTC +00:00 now.all_month -# => Sat, 01 Aug 2010 00:00:00 UTC <plus>00:00..Tue, 31 Aug 2010 23:59:59 UTC <plus>00:00 +# => Sat, 01 Aug 2010 00:00:00 UTC +00:00..Tue, 31 Aug 2010 23:59:59 UTC +00:00 now.all_quarter -# => Thu, 01 Jul 2010 00:00:00 UTC <plus>00:00..Thu, 30 Sep 2010 23:59:59 UTC <plus>00:00 +# => Thu, 01 Jul 2010 00:00:00 UTC +00:00..Thu, 30 Sep 2010 23:59:59 UTC +00:00 now.all_year -# => Fri, 01 Jan 2010 00:00:00 UTC <plus>00:00..Fri, 31 Dec 2010 23:59:59 UTC <plus>00:00 +# => Fri, 01 Jan 2010 00:00:00 UTC +00:00..Fri, 31 Dec 2010 23:59:59 UTC +00:00 ``` ### Time Constructors |