diff options
| -rw-r--r-- | activesupport/CHANGELOG.md | 12 | ||||
| -rw-r--r-- | activesupport/lib/active_support/inflector/methods.rb | 38 | ||||
| -rw-r--r-- | activesupport/test/inflector_test_cases.rb | 8 | ||||
| -rw-r--r-- | guides/source/active_support_core_extensions.md | 29 |
4 files changed, 68 insertions, 19 deletions
diff --git a/activesupport/CHANGELOG.md b/activesupport/CHANGELOG.md index 36955e5ca6..8e63273271 100644 --- a/activesupport/CHANGELOG.md +++ b/activesupport/CHANGELOG.md @@ -1,3 +1,15 @@ +* `humanize` strips leading underscores, if any. + + Before: + + '_id'.humanize # => "" + + After: + + '_id'.humanize # => "Id" + + *Xavier Noria* + * Fixed backward compatibility isues introduced in 326e652. Empty Hash or Array should not present in serialization result. diff --git a/activesupport/lib/active_support/inflector/methods.rb b/activesupport/lib/active_support/inflector/methods.rb index 69f77453e7..51720d0192 100644 --- a/activesupport/lib/active_support/inflector/methods.rb +++ b/activesupport/lib/active_support/inflector/methods.rb @@ -99,26 +99,46 @@ module ActiveSupport word end - # Capitalizes the first word, turns underscores into spaces, and strips a - # trailing '_id' if present. - # Like +titleize+, this is meant for creating pretty output. + # Tweaks an attribute name for display to end users. + # + # Specifically, +humanize+ performs these transformations: + # + # * Applies human inflection rules to the argument. + # * Deletes leading underscores, if any. + # * Removes a "_id" suffix if present. + # * Replaces underscores with spaces, if any. + # * Downcases all words except acronyms. + # * Capitalizes the first word. # # The capitalization of the first word can be turned off by setting the - # optional parameter +capitalize+ to false. - # By default, this parameter is true. + # +:capitalize+ option to false (default is true). # # humanize('employee_salary') # => "Employee salary" # humanize('author_id') # => "Author" # humanize('author_id', capitalize: false) # => "author" + # humanize('_id') # => "Id" + # + # If "SSL" was defined to be an acronym: + # + # humanize('ssl_error') # => "SSL error" + # def humanize(lower_case_and_underscored_word, options = {}) result = lower_case_and_underscored_word.to_s.dup + inflections.humans.each { |(rule, replacement)| break if result.sub!(rule, replacement) } - result.gsub!(/_id$/, "") + + result.sub!(/\A_+/, '') + result.sub!(/_id\z/, '') result.tr!('_', ' ') - result.gsub!(/([a-z\d]*)/i) { |match| + + result.gsub!(/([a-z\d]*)/i) do |match| "#{inflections.acronyms[match] || match.downcase}" - } - result.gsub!(/^\w/) { |match| match.upcase } if options.fetch(:capitalize, true) + end + + if options.fetch(:capitalize, true) + result.sub!(/\A\w/) { |match| match.upcase } + end + result end diff --git a/activesupport/test/inflector_test_cases.rb b/activesupport/test/inflector_test_cases.rb index dd03a61176..b556da0046 100644 --- a/activesupport/test/inflector_test_cases.rb +++ b/activesupport/test/inflector_test_cases.rb @@ -208,9 +208,11 @@ module InflectorTestCases } UnderscoreToHuman = { - "employee_salary" => "Employee salary", - "employee_id" => "Employee", - "underground" => "Underground" + 'employee_salary' => 'Employee salary', + 'employee_id' => 'Employee', + 'underground' => 'Underground', + '_id' => 'Id', + '_external_id' => 'External' } UnderscoreToHumanWithoutCapitalize = { diff --git a/guides/source/active_support_core_extensions.md b/guides/source/active_support_core_extensions.md index 5a4e15cfa9..1ac7ecc78f 100644 --- a/guides/source/active_support_core_extensions.md +++ b/guides/source/active_support_core_extensions.md @@ -1768,21 +1768,36 @@ NOTE: Defined in `active_support/core_ext/string/inflections.rb`. #### `humanize` -The method `humanize` gives you a sensible name for display out of an attribute name. To do so it replaces underscores with spaces, removes any "_id" suffix, and capitalizes the first word: +The method `humanize` tqweaks an attribute name for display to end users. + +Specifically performs these transformations: + + * Applies human inflection rules to the argument. + * Deletes leading underscores, if any. + * Removes a "_id" suffix if present. + * Replaces underscores with spaces, if any. + * Downcases all words except acronyms. + * Capitalizes the first word. + +The capitalization of the first word can be turned off by setting the ++:capitalize+ option to false (default is true). ```ruby -"name".humanize # => "Name" -"author_id".humanize # => "Author" -"comments_count".humanize # => "Comments count" +"name".humanize # => "Name" +"author_id".humanize # => "Author" +"author_id".humanize(capitalize: false) # => "author" +"comments_count".humanize # => "Comments count" +"_id".humanize # => "Id" ``` -The capitalization of the first word can be turned off by setting the optional parameter `capitalize` to false: +If "SSL" was defined to be an acronym: ```ruby -"author_id".humanize(capitalize: false) # => "author" +'ssl_error'.humanize # => "SSL error" ``` -The helper method `full_messages` uses `humanize` as a fallback to include attribute names: +The helper method `full_messages` uses `humanize` as a fallback to include +attribute names: ```ruby def full_messages |