1 | 'use strict';
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2 |
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3 | var util = require('./_util');
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4 |
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5 | module.exports = function defFunc(ajv) {
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6 | if (!ajv._opts.$data) {
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7 | console.warn('keyword select requires $data option');
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8 | return ajv;
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9 | }
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10 | var metaSchemaRef = util.metaSchemaRef(ajv);
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11 | var compiledCaseSchemas = [];
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12 |
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13 | defFunc.definition = {
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14 | validate: function v(schema, data, parentSchema) {
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15 | if (parentSchema.selectCases === undefined)
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16 | throw new Error('keyword "selectCases" is absent');
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17 | var compiled = getCompiledSchemas(parentSchema, false);
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18 | var validate = compiled.cases[schema];
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19 | if (validate === undefined) validate = compiled.default;
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20 | if (typeof validate == 'boolean') return validate;
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21 | var valid = validate(data);
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22 | if (!valid) v.errors = validate.errors;
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23 | return valid;
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24 | },
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25 | $data: true,
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26 | metaSchema: { type: ['string', 'number', 'boolean', 'null'] }
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27 | };
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28 |
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29 | ajv.addKeyword('select', defFunc.definition);
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30 | ajv.addKeyword('selectCases', {
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31 | compile: function (schemas, parentSchema) {
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32 | var compiled = getCompiledSchemas(parentSchema);
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33 | for (var value in schemas)
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34 | compiled.cases[value] = compileOrBoolean(schemas[value]);
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35 | return function() { return true; };
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36 | },
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37 | valid: true,
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38 | metaSchema: {
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39 | type: 'object',
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40 | additionalProperties: metaSchemaRef
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41 | }
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42 | });
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43 | ajv.addKeyword('selectDefault', {
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44 | compile: function (schema, parentSchema) {
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45 | var compiled = getCompiledSchemas(parentSchema);
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46 | compiled.default = compileOrBoolean(schema);
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47 | return function() { return true; };
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48 | },
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49 | valid: true,
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50 | metaSchema: metaSchemaRef
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51 | });
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52 | return ajv;
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53 |
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54 |
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55 | function getCompiledSchemas(parentSchema, create) {
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56 | var compiled;
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57 | compiledCaseSchemas.some(function (c) {
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58 | if (c.parentSchema === parentSchema) {
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59 | compiled = c;
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60 | return true;
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61 | }
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62 | });
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63 | if (!compiled && create !== false) {
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64 | compiled = {
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65 | parentSchema: parentSchema,
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66 | cases: {},
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67 | default: true
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68 | };
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69 | compiledCaseSchemas.push(compiled);
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70 | }
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71 | return compiled;
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72 | }
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73 |
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74 | function compileOrBoolean(schema) {
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75 | return typeof schema == 'boolean'
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76 | ? schema
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77 | : ajv.compile(schema);
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78 | }
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79 | };
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