jsonschema - npm Package Compare versions

Comparing version 1.2.0 to 1.2.2

lib/attribute.js

@@ -190,2 +190,6 @@ 'use strict';
   for (var property in properties) {
+    if (typeof options.preValidateProperty == 'function') {
+      options.preValidateProperty(instance, property, properties[property], options, ctx);
+    }
+
     var prop = (instance || undefined) && instance[property];
@@ -218,2 +222,7 @@ var res = this.validateSchema(prop, properties[property], options, ctx.makeChild(properties[property], property));
     var additionalProperties = schema.additionalProperties || {};
+
+    if (typeof options.preValidateProperty == 'function') {
+      options.preValidateProperty(instance, property, additionalProperties, options, ctx);
+    }
+
     var res = this.validateSchema(instance[property], additionalProperties, options, ctx.makeChild(additionalProperties, property));
@@ -247,2 +256,7 @@ if(res.instance !== result.instance[property]) result.instance[property] = res.instance;
       test = false;
+
+      if (typeof options.preValidateProperty == 'function') {
+        options.preValidateProperty(instance, property, patternProperties[pattern], options, ctx);
+      }
+
       var res = this.validateSchema(instance[property], patternProperties[pattern], options, ctx.makeChild(patternProperties[pattern], property));
@@ -249,0 +263,0 @@ if(res.instance !== result.instance[property]) result.instance[property] = res.instance;

lib/index.d.ts

@@ -7,7 +7,7 @@ /*
     constructor();
-    customFormats: CustomFormat[];
-    schemas: {[id:string]: Schema};
+    customFormats: {[formatName: string]: CustomFormat};
+    schemas: {[id: string]: Schema};
     unresolvedRefs: string[];
 
-    attributes: {[property:string]: CustomProperty};
+    attributes: {[property: string]: CustomProperty};
 
@@ -27,3 +27,3 @@ addSchema(schema?: Schema, uri?: string): Schema|void;
     valid: boolean;
-    addError(detail:string|ErrorDetail): ValidationError;
+    addError(detail: string|ErrorDetail): ValidationError;
     toString(): string;
@@ -88,2 +88,3 @@ }
     type?: string | string[]
+    format?: string
     allOf?: Schema[]
@@ -113,3 +114,3 @@ anyOf?: Schema[]
     base: string;
-    schemas: {[base:string]: Schema};
+    schemas: {[base: string]: Schema};
 }
@@ -116,0 +117,0 @@

package.json

 {
   "author": "Tom de Grunt <[e-mail]>",
   "name": "jsonschema",
-  "version": "1.2.0",
+  "version": "1.2.2",
   "license": "MIT",
@@ -6,0 +6,0 @@ "dependencies": {},

README.md

@@ -175,2 +175,38 @@ [![Build Status](https://secure.travis-ci.org/tdegrunt/jsonschema.svg)](http://travis-ci.org/tdegrunt/jsonschema)
 
+### Pre-Property Validation Hook
+If some processing of properties is required prior to validation a function may be passed via the options parameter of the validate function. For example, say you needed to perform type coercion for some properties:
+
+```const coercionHook = function (instance, property, schema, options, ctx) {
+  var value = instance[property];
+
+  // Skip nulls and undefineds
+  if (value === null || typeof value == 'undefined') {
+    return;
+  }
+
+  // If the schema declares a type and the property fails type validation.
+  if (schema.type && this.attributes.type.call(this, instance, schema, options, ctx.makeChild(schema, property))) {
+    var types = (schema.type instanceof Array) ? schema.type : [schema.type];
+    var coerced = undefined;
+
+    // Go through the declared types until we find something that we can
+    // coerce the value into.
+    for (var i = 0; typeof coerced == 'undefined' && i < types.length; i++) {
+      // If we support coercion to this type
+      if (lib.coercions[types[i]]) {
+        // ...attempt it.
+        coerced = lib.coercions[types[i]](value);
+      }
+    }
+    // If we got a successful coercion we modify the property of the instance.
+    if (typeof coerced != 'undefined') {
+      instance[property] = coerced;
+    }
+  }
+}.bind(validator)
+
+// And now, to actually perform validation with the coercion hook!
+v.validate(instance, schema, { preValidateProperty: coercionHook });
+```
+
 ## Tests
@@ -177,0 +213,0 @@ Uses [JSON Schema Test Suite](https://github.com/json-schema/JSON-Schema-Test-Suite) as well as our own tests.

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Improved metrics

Total package byte prevSize

75609

increased by2.59%

Lines of code

2013

increased by0.5%

Number of lines in readme file

249

increased by16.9%

Worsened metrics

Number of package files

13

decreased by-7.14%

No dependency changes