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// The Inflector transforms words from singular to plural, class names to table names, modularized class names to ones without,
// and class names to foreign keys. The default inflections for pluralization, singularization, and uncountable words are kept
// in inflections.coffee
//
// If you discover an incorrect inflection and require it for your application, you'll need
// to correct it yourself (explained below).
var util = require('./util');
var inflect = module.exports;
// Import [inflections](inflections.html) instance
inflect.inflections = require('./inflections')
// Gives easy access to add inflections to this class
inflect.inflect = function (inflections_function) {
inflections_function(inflect.inflections);
};
// By default, _camelize_ converts strings to UpperCamelCase. If the argument to _camelize_
// is set to _false_ then _camelize_ produces lowerCamelCase.
//
// _camelize_ will also convert '/' to '.' which is useful for converting paths to namespaces.
//
// "bullet_record".camelize() // => "BulletRecord"
// "bullet_record".camelize(false) // => "bulletRecord"
// "bullet_record/errors".camelize() // => "BulletRecord.Errors"
// "bullet_record/errors".camelize(false) // => "bulletRecord.Errors"
//
// As a rule of thumb you can think of _camelize_ as the inverse of _underscore_,
// though there are cases where that does not hold:
//
// "SSLError".underscore.camelize // => "SslError"
inflect.camelize = function(lower_case_and_underscored_word, first_letter_in_uppercase) {
var result;
if (first_letter_in_uppercase == null) first_letter_in_uppercase = true;
result = util.string.gsub(lower_case_and_underscored_word, /\/(.?)/, function($) {
return "." + (util.string.upcase($[1]));
});
result = util.string.gsub(result, /(?:_)(.)/, function($) {
return util.string.upcase($[1]);
});
if (first_letter_in_uppercase) {
return util.string.upcase(result);
} else {
return util.string.downcase(result);
}
};
// Makes an underscored, lowercase form from the expression in the string.
//
// Changes '.' to '/' to convert namespaces to paths.
//
// "BulletRecord".underscore() // => "bullet_record"
// "BulletRecord.Errors".underscore() // => "bullet_record/errors"
//
// As a rule of thumb you can think of +underscore+ as the inverse of +camelize+,
// though there are cases where that does not hold:
//
// "SSLError".underscore().camelize() // => "SslError"
inflect.underscore = function (camel_cased_word) {
var self;
self = util.string.gsub(camel_cased_word, /\./, '/');
self = util.string.gsub(self, /([A-Z]+)([A-Z][a-z])/, "$1_$2");
self = util.string.gsub(self, /([a-z\d])([A-Z])/, "$1_$2");
self = util.string.gsub(self, /-/, '_');
return self.toLowerCase();
};
// Replaces underscores with dashes in the string.
//
// "puni_puni".dasherize() // => "puni-puni"
inflect.dasherize = function (underscored_word) {
return util.string.gsub(underscored_word, /_/, '-');
};
// Removes the module part from the expression in the string.
//
// "BulletRecord.String.Inflections".demodulize() // => "Inflections"
// "Inflections".demodulize() // => "Inflections"
inflect.demodulize = function (class_name_in_module) {
return util.string.gsub(class_name_in_module, /^.*\./, '');
};
// Creates a foreign key name from a class name.
// _separate_class_name_and_id_with_underscore_ sets whether
// the method should put '_' between the name and 'id'.
//
// "Message".foreign_key() // => "message_id"
// "Message".foreign_key(false) // => "messageid"
// "Admin::Post".foreign_key() // => "post_id"
inflect.foreign_key = function (class_name, separate_class_name_and_id_with_underscore) {
if (separate_class_name_and_id_with_underscore == null) {
separate_class_name_and_id_with_underscore = true;
}
return inflect.underscore(inflect.demodulize(class_name)) + (separate_class_name_and_id_with_underscore ? "_id" : "id");
};
// Turns a number into an ordinal string used to denote the position in an
// ordered sequence such as 1st, 2nd, 3rd, 4th.
//
// ordinalize(1) // => "1st"
// ordinalize(2) // => "2nd"
// ordinalize(1002) // => "1002nd"
// ordinalize(1003) // => "1003rd"
// ordinalize(-11) // => "-11th"
// ordinalize(-1021) // => "-1021st"
inflect.ordinalize = function (number) {
var _ref;
number = parseInt(number);
if ((_ref = Math.abs(number) % 100) === 11 || _ref === 12 || _ref === 13) {
return "" + number + "th";
} else {
switch (Math.abs(number) % 10) {
case 1:
return "" + number + "st";
case 2:
return "" + number + "nd";
case 3:
return "" + number + "rd";
default:
return "" + number + "th";
}
}
};
// Checks a given word for uncountability
//
// "money".uncountability() // => true
// "my money".uncountability() // => true
inflect.uncountability = function (word) {
return inflect.inflections.uncountables.some(function(ele, ind, arr) {
return word.match(new RegExp("(\\b|_)" + ele + "$", 'i')) != null;
});
};
// Returns the plural form of the word in the string.
//
// "post".pluralize() // => "posts"
// "octopus".pluralize() // => "octopi"
// "sheep".pluralize() // => "sheep"
// "words".pluralize() // => "words"
// "CamelOctopus".pluralize() // => "CamelOctopi"
inflect.pluralize = function (word) {
var plural, result;
result = word;
if (word === '' || inflect.uncountability(word)) {
return result;
} else {
for (var i = 0; i < inflect.inflections.plurals.length; i++) {
plural = inflect.inflections.plurals[i];
result = util.string.gsub(result, plural[0], plural[1]);
if (word.match(plural[0]) != null) break;
}
return result;
}
};
// The reverse of _pluralize_, returns the singular form of a word in a string.
//
// "posts".singularize() // => "post"
// "octopi".singularize() // => "octopus"
// "sheep".singularize() // => "sheep"
// "word".singularize() // => "word"
// "CamelOctopi".singularize() // => "CamelOctopus"
inflect.singularize = function (word) {
var result, singular;
result = word;
if (word === '' || inflect.uncountability(word)) {
return result;
} else {
for (var i = 0; i < inflect.inflections.singulars.length; i++) {
singular = inflect.inflections.singulars[i];
result = util.string.gsub(result, singular[0], singular[1]);
if (word.match(singular[0])) break;
}
return result;
}
};
// Capitalizes the first word and turns underscores into spaces and strips a
// trailing "_id", if any. Like _titleize_, this is meant for creating pretty output.
//
// "employee_salary".humanize() // => "Employee salary"
// "author_id".humanize() // => "Author"
inflect.humanize = function (lower_case_and_underscored_word) {
var human, result;
result = lower_case_and_underscored_word;
for (var i = 0; i < inflect.inflections.humans.length; i++) {
human = inflect.inflections.humans[i];
result = util.string.gsub(result, human[0], human[1]);
}
result = util.string.gsub(result, /_id$/, "");
result = util.string.gsub(result, /_/, " ");
return util.string.capitalize(result, true);
};
// Capitalizes all the words and replaces some characters in the string to create
// a nicer looking title. _titleize_ is meant for creating pretty output. It is not
// used in the Bullet internals.
//
//
// "man from the boondocks".titleize() // => "Man From The Boondocks"
// "x-men: the last stand".titleize() // => "X Men: The Last Stand"
inflect.titleize = function (word) {
var self;
self = inflect.humanize(inflect.underscore(word));
return util.string.capitalize(self);
};
// Create the name of a table like Bullet does for models to table names. This method
// uses the _pluralize_ method on the last word in the string.
//
// "RawScaledScorer".tableize() // => "raw_scaled_scorers"
// "egg_and_ham".tableize() // => "egg_and_hams"
// "fancyCategory".tableize() // => "fancy_categories"
inflect.tableize = function (class_name) {
return inflect.pluralize(inflect.underscore(class_name));
};
// Create a class name from a plural table name like Bullet does for table names to models.
// Note that this returns a string and not a Class.
//
// "egg_and_hams".classify() // => "EggAndHam"
// "posts".classify() // => "Post"
//
// Singular names are not handled correctly:
//
// "business".classify() // => "Busines"
inflect.classify = function (table_name) {
return inflect.camelize(inflect.singularize(util.string.gsub(table_name, /.*\./, '')));
}
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