45 lines
1.5 KiB
JavaScript
45 lines
1.5 KiB
JavaScript
//
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// Quick and dirty implementation for cds.validate()
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// using db-level constraints.
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//
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const cds = require('@sap/cds')
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cds.on('served', ()=> {
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const $ = cds.validate
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cds.validate = function (entity, key, ...columns) {
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if (entity?.ref) entity = { // quick and dirty
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name: entity.ref[0],
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constraints: { // even quicker and dirtier
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name: entity.ref[0] +'.constraints',
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keys: {ID:1}
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}
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}
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else if (!entity.is_entity) return // we skip all standard validations for the experiments
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else if (!entity.is_entity) return $(...arguments) // eslint-disable-line no-dupe-else-if
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if (entity.constraints) entity = entity.constraints
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if (!key) return key => cds.validate(entity,key)
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if (key.results) key = key.results[0].lastInsertRowid // quick and dirty
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if (key.ID) key = key.ID // quick and dirty
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return SELECT.one.from (entity, key, columns.length && columns) .then (checks => {
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const failed = {}; for (let c in checks) {
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if (c in entity.keys) continue
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if (c[0] == '_') continue
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if (checks[c]) failed[c] = checks[c]
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}
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if (Object.keys(failed).length) throw cds.error `Invalid input: ${failed}`
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})
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}
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const { AdminService } = cds.services
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AdminService.after (['CREATE','UPDATE'], (result,req) => cds.validate (req.subject, result))
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})
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Object.defineProperties (cds.entity.prototype, {
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constraints: { get() { return cds.model.definitions[this.name+'.constraints'] }},
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fields: { get() { return cds.model.definitions[this.name+'.field.control'] }},
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})
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