80 lines
2.2 KiB
JavaScript
80 lines
2.2 KiB
JavaScript
'use strict';
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var util = require('./_util');
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module.exports = function defFunc(ajv) {
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if (!ajv._opts.$data) {
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console.warn('keyword select requires $data option');
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return ajv;
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}
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var metaSchemaRef = util.metaSchemaRef(ajv);
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var compiledCaseSchemas = [];
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defFunc.definition = {
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validate: function v(schema, data, parentSchema) {
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if (parentSchema.selectCases === undefined)
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throw new Error('keyword "selectCases" is absent');
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var compiled = getCompiledSchemas(parentSchema, false);
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var validate = compiled.cases[schema];
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if (validate === undefined) validate = compiled.default;
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if (typeof validate == 'boolean') return validate;
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var valid = validate(data);
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if (!valid) v.errors = validate.errors;
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return valid;
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},
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$data: true,
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metaSchema: { type: ['string', 'number', 'boolean', 'null'] }
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};
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ajv.addKeyword('select', defFunc.definition);
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ajv.addKeyword('selectCases', {
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compile: function (schemas, parentSchema) {
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var compiled = getCompiledSchemas(parentSchema);
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for (var value in schemas)
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compiled.cases[value] = compileOrBoolean(schemas[value]);
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return function() { return true; };
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},
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valid: true,
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metaSchema: {
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type: 'object',
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additionalProperties: metaSchemaRef
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}
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});
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ajv.addKeyword('selectDefault', {
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compile: function (schema, parentSchema) {
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var compiled = getCompiledSchemas(parentSchema);
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compiled.default = compileOrBoolean(schema);
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return function() { return true; };
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},
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valid: true,
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metaSchema: metaSchemaRef
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});
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return ajv;
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function getCompiledSchemas(parentSchema, create) {
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var compiled;
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compiledCaseSchemas.some(function (c) {
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if (c.parentSchema === parentSchema) {
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compiled = c;
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return true;
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}
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});
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if (!compiled && create !== false) {
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compiled = {
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parentSchema: parentSchema,
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cases: {},
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default: true
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};
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compiledCaseSchemas.push(compiled);
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}
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return compiled;
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}
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function compileOrBoolean(schema) {
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return typeof schema == 'boolean'
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? schema
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: ajv.compile(schema);
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}
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};
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