33 lines
1.3 KiB
JavaScript
33 lines
1.3 KiB
JavaScript
// # Plural Helper
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// Usage: `{{plural 0 empty='No posts' singular='% post' plural='% posts'}}`
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//
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// pluralises strings depending on item count
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//
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// The 1st argument is the numeric variable which the helper operates on
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// The 2nd argument is the string that will be output if the variable's value is 0
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// The 3rd argument is the string that will be output if the variable's value is 1
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// The 4th argument is the string that will be output if the variable's value is 2+
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var hbs = require('express-hbs'),
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errors = require('../errors'),
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_ = require('lodash'),
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i18n = require('../i18n'),
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plural;
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plural = function (context, options) {
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if (_.isUndefined(options.hash) || _.isUndefined(options.hash.empty) ||
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_.isUndefined(options.hash.singular) || _.isUndefined(options.hash.plural)) {
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return errors.logAndThrowError(i18n.t('warnings.helpers.plural.valuesMustBeDefined'));
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}
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if (context === 0) {
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return new hbs.handlebars.SafeString(options.hash.empty.replace('%', context));
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} else if (context === 1) {
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return new hbs.handlebars.SafeString(options.hash.singular.replace('%', context));
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} else if (context >= 2) {
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return new hbs.handlebars.SafeString(options.hash.plural.replace('%', context));
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}
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};
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module.exports = plural;
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