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How to use constantize method of Support Package

Best Spinach_ruby code snippet using Support.constantize

inflections.rb

Source:inflections.rb

...38  #   "CamelOctopi".singularize      # => "CamelOctopus"39  def singularize40    ActiveSupport::Inflector.singularize(self)41  end42  # +constantize+ tries to find a declared constant with the name specified43  # in the string. It raises a NameError when the name is not in CamelCase44  # or is not initialized.  See ActiveSupport::Inflector.constantize45  #46  # Examples47  #   "Module".constantize  # => Module48  #   "Class".constantize   # => Class49  #   "blargle".constantize # => NameError: wrong constant name blargle50  def constantize51    ActiveSupport::Inflector.constantize(self)52  end53  # +safe_constantize+ tries to find a declared constant with the name specified54  # in the string. It returns nil when the name is not in CamelCase55  # or is not initialized.  See ActiveSupport::Inflector.safe_constantize56  #57  # Examples58  #   "Module".safe_constantize  # => Module59  #   "Class".safe_constantize   # => Class60  #   "blargle".safe_constantize # => nil61  def safe_constantize62    ActiveSupport::Inflector.safe_constantize(self)63  end64  # By default, +camelize+ converts strings to UpperCamelCase. If the argument to camelize65  # is set to <tt>:lower</tt> then camelize produces lowerCamelCase.66  #67  # +camelize+ will also convert '/' to '::' which is useful for converting paths to namespaces.68  #69  #   "active_record".camelize                # => "ActiveRecord"70  #   "active_record".camelize(:lower)        # => "activeRecord"71  #   "active_record/errors".camelize         # => "ActiveRecord::Errors"72  #   "active_record/errors".camelize(:lower) # => "activeRecord::Errors"73  def camelize(first_letter = :upper)74    case first_letter75      when :upper then ActiveSupport::Inflector.camelize(self, true)76      when :lower then ActiveSupport::Inflector.camelize(self, false)77    end78  end79  alias_method :camelcase, :camelize80  # Capitalizes all the words and replaces some characters in the string to create81  # a nicer looking title. +titleize+ is meant for creating pretty output. It is not82  # used in the Rails internals.83  #84  # +titleize+ is also aliased as +titlecase+.85  #86  #   "man from the boondocks".titleize # => "Man From The Boondocks"87  #   "x-men: the last stand".titleize  # => "X Men: The Last Stand"88  def titleize89    ActiveSupport::Inflector.titleize(self)90  end91  alias_method :titlecase, :titleize92  # The reverse of +camelize+. Makes an underscored, lowercase form from the expression in the string.93  #94  # +underscore+ will also change '::' to '/' to convert namespaces to paths.95  #96  #   "ActiveModel".underscore         # => "active_model"97  #   "ActiveModel::Errors".underscore # => "active_model/errors"98  def underscore99    ActiveSupport::Inflector.underscore(self)100  end101  # Replaces underscores with dashes in the string.102  #103  #   "puni_puni" # => "puni-puni"104  def dasherize105    ActiveSupport::Inflector.dasherize(self)106  end107  # Removes the module part from the constant expression in the string.108  #109  #   "ActiveRecord::CoreExtensions::String::Inflections".demodulize # => "Inflections"110  #   "Inflections".demodulize                                       # => "Inflections"111  #112  # See also +deconstantize+.113  def demodulize114    ActiveSupport::Inflector.demodulize(self)115  end116  # Removes the rightmost segment from the constant expression in the string.117  #118  #   "Net::HTTP".deconstantize   # => "Net"119  #   "::Net::HTTP".deconstantize # => "::Net"120  #   "String".deconstantize      # => ""121  #   "::String".deconstantize    # => ""122  #   "".deconstantize            # => ""123  #124  # See also +demodulize+.125  def deconstantize126    ActiveSupport::Inflector.deconstantize(self)127  end128  # Replaces special characters in a string so that it may be used as part of a 'pretty' URL.129  #130  # ==== Examples131  #132  #   class Person133  #     def to_param134  #       "#{id}-#{name.parameterize}"135  #     end136  #   end137  #138  #   @person = Person.find(1)139  #   # => #<Person id: 1, name: "Donald E. Knuth">140  #141  #   <%= link_to(@person.name, person_path) %>142  #   # => <a href="/person/1-donald-e-knuth">Donald E. Knuth</a>143  def parameterize(sep = '-')144    ActiveSupport::Inflector.parameterize(self, sep)145  end146  # Creates the name of a table like Rails does for models to table names. This method147  # uses the +pluralize+ method on the last word in the string.148  #149  #   "RawScaledScorer".tableize # => "raw_scaled_scorers"150  #   "egg_and_ham".tableize     # => "egg_and_hams"151  #   "fancyCategory".tableize   # => "fancy_categories"152  def tableize153    ActiveSupport::Inflector.tableize(self)154  end155  # Create a class name from a plural table name like Rails does for table names to models.156  # Note that this returns a string and not a class. (To convert to an actual class157  # follow +classify+ with +constantize+.)158  #159  #   "egg_and_hams".classify # => "EggAndHam"160  #   "posts".classify        # => "Post"161  #162  # Singular names are not handled correctly.163  #164  #   "business".classify # => "Busines"165  def classify166    ActiveSupport::Inflector.classify(self)167  end168  # Capitalizes the first word, turns underscores into spaces, and strips '_id'.169  # Like +titleize+, this is meant for creating pretty output.170  #171  #   "employee_salary" # => "Employee salary"...

constantize

Using AI Code Generation

1  def attr_accessor_with_history(attr_name)2    class_eval %Q{3    }4  @@currencies = {'dollar' => 1.00, 'yen' => 0.013, 'euro' => 1.292, 'rupee' => 0.019}5  def method_missing(method_id)6    singular_currency = method_id.to_s.gsub( /s$/, '')7    if @@currencies.has_key?(singular_currency)8  def in(currency)9    singular_currency = currency.to_s.gsub( /s$/, '')10    if @@currencies.has_key?(singular_currency)11    self.gsub(/\W/, '').downcase == self.gsub(/\W/, '').downcase.reverse

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