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How to use camelize method of Support Package

Best Spinach_ruby code snippet using Support.camelize

inflector_test.rb

Source:inflector_test.rb

...106      assert_equal(titleized, ActiveSupport::Inflector.titleize(before, keep_id_suffix: true),107        "mixture to TitleCase with keep_id_suffix failed for #{before}")108    end109  end110  def test_camelize111    CamelToUnderscore.each do |camel, underscore|112      assert_equal(camel, ActiveSupport::Inflector.camelize(underscore))113    end114  end115  def test_camelize_with_true_upcases_the_first_letter116    assert_equal("Capital", ActiveSupport::Inflector.camelize("Capital", true))117    assert_equal("Capital", ActiveSupport::Inflector.camelize("capital", true))118  end119  def test_camelize_with_upper_upcases_the_first_letter120    assert_equal("Capital", ActiveSupport::Inflector.camelize("Capital", :upper))121    assert_equal("Capital", ActiveSupport::Inflector.camelize("capital", :upper))122  end123  def test_camelize_with_false_downcases_the_first_letter124    assert_equal("capital", ActiveSupport::Inflector.camelize("Capital", false))125    assert_equal("capital", ActiveSupport::Inflector.camelize("capital", false))126  end127  def test_camelize_with_nil_downcases_the_first_letter128    assert_equal("capital", ActiveSupport::Inflector.camelize("Capital", nil))129    assert_equal("capital", ActiveSupport::Inflector.camelize("capital", nil))130  end131  def test_camelize_with_lower_downcases_the_first_letter132    assert_equal("capital", ActiveSupport::Inflector.camelize("Capital", :lower))133    assert_equal("capital", ActiveSupport::Inflector.camelize("capital", :lower))134  end135  def test_camelize_with_any_other_arg_upcases_the_first_letter136    assert_equal("Capital", ActiveSupport::Inflector.camelize("capital", :true))137    assert_equal("Capital", ActiveSupport::Inflector.camelize("Capital", :true))138    assert_equal("Capital", ActiveSupport::Inflector.camelize("capital", :false))139    assert_equal("Capital", ActiveSupport::Inflector.camelize("capital", :foo))140    assert_equal("Capital", ActiveSupport::Inflector.camelize("capital", 42))141    assert_equal("Capital", ActiveSupport::Inflector.camelize("capital"))142  end143  def test_camelize_with_underscores144    assert_equal("CamelCase", ActiveSupport::Inflector.camelize("Camel_Case"))145  end146  def test_acronyms147    ActiveSupport::Inflector.inflections do |inflect|148      inflect.acronym("API")149      inflect.acronym("HTML")150      inflect.acronym("HTTP")151      inflect.acronym("RESTful")152      inflect.acronym("W3C")153      inflect.acronym("PhD")154      inflect.acronym("RoR")155      inflect.acronym("SSL")156    end157    #  camelize             underscore            humanize              titleize158    [159      ["API",               "api",                "API",                "API"],160      ["APIController",     "api_controller",     "API controller",     "API Controller"],161      ["Nokogiri::HTML",    "nokogiri/html",      "Nokogiri/HTML",      "Nokogiri/HTML"],162      ["HTTPAPI",           "http_api",           "HTTP API",           "HTTP API"],163      ["HTTP::Get",         "http/get",           "HTTP/get",           "HTTP/Get"],164      ["SSLError",          "ssl_error",          "SSL error",          "SSL Error"],165      ["RESTful",           "restful",            "RESTful",            "RESTful"],166      ["RESTfulController", "restful_controller", "RESTful controller", "RESTful Controller"],167      ["Nested::RESTful",   "nested/restful",     "Nested/RESTful",     "Nested/RESTful"],168      ["IHeartW3C",         "i_heart_w3c",        "I heart W3C",        "I Heart W3C"],169      ["PhDRequired",       "phd_required",       "PhD required",       "PhD Required"],170      ["IRoRU",             "i_ror_u",            "I RoR u",            "I RoR U"],171      ["RESTfulHTTPAPI",    "restful_http_api",   "RESTful HTTP API",   "RESTful HTTP API"],172      ["HTTP::RESTful",     "http/restful",       "HTTP/RESTful",       "HTTP/RESTful"],173      ["HTTP::RESTfulAPI",  "http/restful_api",   "HTTP/RESTful API",   "HTTP/RESTful API"],174      ["APIRESTful",        "api_restful",        "API RESTful",        "API RESTful"],175      # misdirection176      ["Capistrano",        "capistrano",         "Capistrano",       "Capistrano"],177      ["CapiController",    "capi_controller",    "Capi controller",  "Capi Controller"],178      ["HttpsApis",         "https_apis",         "Https apis",       "Https Apis"],179      ["Html5",             "html5",              "Html5",            "Html5"],180      ["Restfully",         "restfully",          "Restfully",        "Restfully"],181      ["RoRails",           "ro_rails",           "Ro rails",         "Ro Rails"]182    ].each do |camel, under, human, title|183      assert_equal(camel, ActiveSupport::Inflector.camelize(under))184      assert_equal(camel, ActiveSupport::Inflector.camelize(camel))185      assert_equal(under, ActiveSupport::Inflector.underscore(under))186      assert_equal(under, ActiveSupport::Inflector.underscore(camel))187      assert_equal(title, ActiveSupport::Inflector.titleize(under))188      assert_equal(title, ActiveSupport::Inflector.titleize(camel))189      assert_equal(human, ActiveSupport::Inflector.humanize(under))190    end191  end192  def test_acronym_override193    ActiveSupport::Inflector.inflections do |inflect|194      inflect.acronym("API")195      inflect.acronym("LegacyApi")196    end197    assert_equal("LegacyApi", ActiveSupport::Inflector.camelize("legacyapi"))198    assert_equal("LegacyAPI", ActiveSupport::Inflector.camelize("legacy_api"))199    assert_equal("SomeLegacyApi", ActiveSupport::Inflector.camelize("some_legacyapi"))200    assert_equal("Nonlegacyapi", ActiveSupport::Inflector.camelize("nonlegacyapi"))201  end202  def test_acronyms_camelize_lower203    ActiveSupport::Inflector.inflections do |inflect|204      inflect.acronym("API")205      inflect.acronym("HTML")206    end207    assert_equal("htmlAPI", ActiveSupport::Inflector.camelize("html_api", false))208    assert_equal("htmlAPI", ActiveSupport::Inflector.camelize("htmlAPI", false))209    assert_equal("htmlAPI", ActiveSupport::Inflector.camelize("HTMLAPI", false))210  end211  def test_underscore_acronym_sequence212    ActiveSupport::Inflector.inflections do |inflect|213      inflect.acronym("API")214      inflect.acronym("JSON")215      inflect.acronym("HTML")216    end217    assert_equal("json_html_api", ActiveSupport::Inflector.underscore("JSONHTMLAPI"))218  end219  def test_underscore220    CamelToUnderscore.each do |camel, underscore|221      assert_equal(underscore, ActiveSupport::Inflector.underscore(camel))222    end223    CamelToUnderscoreWithoutReverse.each do |camel, underscore|224      assert_equal(underscore, ActiveSupport::Inflector.underscore(camel))225    end226  end227  def test_camelize_with_module228    CamelWithModuleToUnderscoreWithSlash.each do |camel, underscore|229      assert_equal(camel, ActiveSupport::Inflector.camelize(underscore))230    end231  end232  def test_underscore_with_slashes233    CamelWithModuleToUnderscoreWithSlash.each do |camel, underscore|234      assert_equal(underscore, ActiveSupport::Inflector.underscore(camel))235    end236  end237  def test_demodulize238    assert_equal "Account", ActiveSupport::Inflector.demodulize("MyApplication::Billing::Account")239    assert_equal "Account", ActiveSupport::Inflector.demodulize("Account")240    assert_equal "Account", ActiveSupport::Inflector.demodulize("::Account")241    assert_equal "", ActiveSupport::Inflector.demodulize("")242  end243  def test_deconstantize244    assert_equal "MyApplication::Billing", ActiveSupport::Inflector.deconstantize("MyApplication::Billing::Account")245    assert_equal "::MyApplication::Billing", ActiveSupport::Inflector.deconstantize("::MyApplication::Billing::Account")246    assert_equal "MyApplication", ActiveSupport::Inflector.deconstantize("MyApplication::Billing")247    assert_equal "::MyApplication", ActiveSupport::Inflector.deconstantize("::MyApplication::Billing")248    assert_equal "", ActiveSupport::Inflector.deconstantize("Account")249    assert_equal "", ActiveSupport::Inflector.deconstantize("::Account")250    assert_equal "", ActiveSupport::Inflector.deconstantize("")251  end252  def test_foreign_key253    ClassNameToForeignKeyWithUnderscore.each do |klass, foreign_key|254      assert_equal(foreign_key, ActiveSupport::Inflector.foreign_key(klass))255    end256    ClassNameToForeignKeyWithoutUnderscore.each do |klass, foreign_key|257      assert_equal(foreign_key, ActiveSupport::Inflector.foreign_key(klass, false))258    end259  end260  def test_tableize261    ClassNameToTableName.each do |class_name, table_name|262      assert_equal(table_name, ActiveSupport::Inflector.tableize(class_name))263    end264  end265  def test_parameterize266    StringToParameterized.each do |some_string, parameterized_string|267      assert_equal(parameterized_string, ActiveSupport::Inflector.parameterize(some_string))268    end269  end270  def test_parameterize_and_normalize271    StringToParameterizedAndNormalized.each do |some_string, parameterized_string|272      assert_equal(parameterized_string, ActiveSupport::Inflector.parameterize(some_string))273    end274  end275  def test_parameterize_with_custom_separator276    StringToParameterizeWithUnderscore.each do |some_string, parameterized_string|277      assert_equal(parameterized_string, ActiveSupport::Inflector.parameterize(some_string, separator: "_"))278    end279  end280  def test_parameterize_with_multi_character_separator281    StringToParameterized.each do |some_string, parameterized_string|282      assert_equal(parameterized_string.gsub("-", "__sep__"), ActiveSupport::Inflector.parameterize(some_string, separator: "__sep__"))283    end284  end285  def test_parameterize_with_locale286    word = "FÃ¼nf autos"287    I18n.backend.store_translations(:de, i18n: { transliterate: { rule: { "Ã¼" => "ue" } } })288    assert_equal("fuenf-autos", ActiveSupport::Inflector.parameterize(word, locale: :de))289  end290  def test_classify291    ClassNameToTableName.each do |class_name, table_name|292      assert_equal(class_name, ActiveSupport::Inflector.classify(table_name))293      assert_equal(class_name, ActiveSupport::Inflector.classify("table_prefix." + table_name))294    end295  end296  def test_classify_with_symbol297    assert_nothing_raised do298      assert_equal "FooBar", ActiveSupport::Inflector.classify(:foo_bars)299    end300  end301  def test_classify_with_leading_schema_name302    assert_equal "FooBar", ActiveSupport::Inflector.classify("schema.foo_bar")303  end304  def test_humanize305    UnderscoreToHuman.each do |underscore, human|306      assert_equal(human, ActiveSupport::Inflector.humanize(underscore))307    end308  end309  def test_humanize_without_capitalize310    UnderscoreToHumanWithoutCapitalize.each do |underscore, human|311      assert_equal(human, ActiveSupport::Inflector.humanize(underscore, capitalize: false))312    end313  end314  def test_humanize_with_keep_id_suffix315    UnderscoreToHumanWithKeepIdSuffix.each do |underscore, human|316      assert_equal(human, ActiveSupport::Inflector.humanize(underscore, keep_id_suffix: true))317    end318  end319  def test_humanize_by_rule320    ActiveSupport::Inflector.inflections do |inflect|321      inflect.human(/_cnt$/i, '\1_count')322      inflect.human(/^prefx_/i, '\1')323    end324    assert_equal("Jargon count", ActiveSupport::Inflector.humanize("jargon_cnt"))325    assert_equal("Request", ActiveSupport::Inflector.humanize("prefx_request"))326  end327  def test_humanize_by_string328    ActiveSupport::Inflector.inflections do |inflect|329      inflect.human("col_rpted_bugs", "Reported bugs")330    end331    assert_equal("Reported bugs", ActiveSupport::Inflector.humanize("col_rpted_bugs"))332    assert_equal("Col rpted bugs", ActiveSupport::Inflector.humanize("COL_rpted_bugs"))333  end334  def test_humanize_with_acronyms335    ActiveSupport::Inflector.inflections do |inflect|336      inflect.acronym "LAX"337      inflect.acronym "SFO"338    end339    assert_equal("LAX roundtrip to SFO", ActiveSupport::Inflector.humanize("LAX ROUNDTRIP TO SFO"))340    assert_equal("LAX roundtrip to SFO", ActiveSupport::Inflector.humanize("LAX ROUNDTRIP TO SFO", capitalize: false))341    assert_equal("LAX roundtrip to SFO", ActiveSupport::Inflector.humanize("lax roundtrip to sfo"))342    assert_equal("LAX roundtrip to SFO", ActiveSupport::Inflector.humanize("lax roundtrip to sfo", capitalize: false))343    assert_equal("LAX roundtrip to SFO", ActiveSupport::Inflector.humanize("Lax Roundtrip To Sfo"))344    assert_equal("LAX roundtrip to SFO", ActiveSupport::Inflector.humanize("Lax Roundtrip To Sfo", capitalize: false))345  end346  def test_constantize347    run_constantize_tests_on do |string|348      ActiveSupport::Inflector.constantize(string)349    end350  end351  def test_safe_constantize352    run_safe_constantize_tests_on do |string|353      ActiveSupport::Inflector.safe_constantize(string)354    end355  end356  def test_ordinal357    OrdinalNumbers.each do |number, ordinalized|358      assert_equal(ordinalized, number + ActiveSupport::Inflector.ordinal(number))359    end360  end361  def test_ordinalize362    OrdinalNumbers.each do |number, ordinalized|363      assert_equal(ordinalized, ActiveSupport::Inflector.ordinalize(number))364    end365  end366  def test_dasherize367    UnderscoresToDashes.each do |underscored, dasherized|368      assert_equal(dasherized, ActiveSupport::Inflector.dasherize(underscored))369    end370  end371  def test_underscore_as_reverse_of_dasherize372    UnderscoresToDashes.each_key do |underscored|373      assert_equal(underscored, ActiveSupport::Inflector.underscore(ActiveSupport::Inflector.dasherize(underscored)))374    end375  end376  def test_underscore_to_lower_camel377    UnderscoreToLowerCamel.each do |underscored, lower_camel|378      assert_equal(lower_camel, ActiveSupport::Inflector.camelize(underscored, false))379    end380  end381  def test_symbol_to_lower_camel382    SymbolToLowerCamel.each do |symbol, lower_camel|383      assert_equal(lower_camel, ActiveSupport::Inflector.camelize(symbol, false))384    end385  end386  %w{plurals singulars uncountables humans}.each do |inflection_type|387    class_eval <<-RUBY, __FILE__, __LINE__ + 1388      def test_clear_#{inflection_type}389        ActiveSupport::Inflector.inflections.clear :#{inflection_type}390        assert ActiveSupport::Inflector.inflections.#{inflection_type}.empty?, \"#{inflection_type} inflections should be empty after clear :#{inflection_type}\"391      end392    RUBY393  end394  def test_inflector_locality395    ActiveSupport::Inflector.inflections(:es) do |inflect|396      inflect.plural(/$/, "s")397      inflect.plural(/z$/i, "ces")...

inflections.rb

Source:inflections.rb

...45  def constantize46    ActiveSupport::Inflector.constantize(self)47  end48  ##49  # The reverse of +camelize+. Makes an underscored, lowercase form from the expression in the string.50  #51  # +underscore+ will also change '::' to '/' to convert namespaces to paths.52  #53  #   "ActiveRecord".underscore         # => "active_record"54  #   "ActiveRecord::Errors".underscore # => active_record/errors55  #56  def underscore57    ActiveSupport::Inflector.underscore(self)58  end59  ##60  # By default, +camelize+ converts strings to UpperCamelCase. If the argument to camelize61  # is set to <tt>:lower</tt> then camelize produces lowerCamelCase.62  #63  # +camelize+ will also convert '/' to '::' which is useful for converting paths to namespaces.64  #65  #   "active_record".camelize                # => "ActiveRecord"66  #   "active_record".camelize(:lower)        # => "activeRecord"67  #   "active_record/errors".camelize         # => "ActiveRecord::Errors"68  #   "active_record/errors".camelize(:lower) # => "activeRecord::Errors"69  #70  def camelize(first_letter = :upper)71    case first_letter72      when :upper then ActiveSupport::Inflector.camelize(self, true)73      when :lower then ActiveSupport::Inflector.camelize(self, false)74    end75  end76  alias_method :camelcase, :camelize77  ##78  # Create a class name from a plural table name like Rails does for table names to models.79  # Note that this returns a string and not a class. (To convert to an actual class80  # follow +classify+ with +constantize+.)81  #82  #   "egg_and_hams".classify # => "EggAndHam"83  #   "posts".classify        # => "Post"84  #85  # Singular names are not handled correctly.86  #87  #   "business".classify # => "Busines"88  #89  def classify90    ActiveSupport::Inflector.classify(self)...

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