37 lines
814 B
TypeScript
37 lines
814 B
TypeScript
// Translate for example "-name" to [ 'name', 'DESC' ]
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function getSort (value: string) {
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let field: string
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let direction: 'ASC' | 'DESC'
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if (value.substring(0, 1) === '-') {
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direction = 'DESC'
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field = value.substring(1)
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} else {
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direction = 'ASC'
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field = value
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}
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return [ field, direction ]
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}
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function getSortOnModel (model: any, value: string) {
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let sort = getSort(value)
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if (model) return [ model, sort[0], sort[1] ]
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return sort
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}
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function throwIfNotValid (value: any, validator: (value: any) => boolean, fieldName = 'value') {
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if (validator(value) === false) {
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throw new Error(`"${value}" is not a valid ${fieldName}.`)
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}
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}
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// ---------------------------------------------------------------------------
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export {
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getSort,
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getSortOnModel,
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throwIfNotValid
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}
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