Merge b23dc1a into ff2c769

keywords/index.js

@@ -8,6 +8,7 @@ module.exports = {
   dynamicDefaults: require('./dynamicDefaults'),
   'if': require('./if'),
   prohibited: require('./prohibited'),
+  uniqueItemProperties: require('./uniqueItemProperties'),
   deepProperties: require('./deepProperties'),
   deepRequired: require('./deepRequired'),
   formatMinimum: require('./formatMinimum'),

keywords/uniqueItemProperties.js

@@ -0,0 +1,37 @@
+'use strict';
+
+module.exports = function defFunc(ajv) {
+  defFunc.definition = {
+    compile: function(keys, parentSchema, it) {
+      var equal = it.util.equal;
+      return function(data) {
+        var keyData = keys.reduce(function (props, key) {
+          props[key] = [];
+          return props;
+        }, {});
+
+        var foundCollision = !!data.find(function (item) {
+          return !!keys.find(function (key) {
+            var value = item[key];
+            var foundValue = keyData[key].find(function (storedValue) {
+              return equal(value, storedValue);
+            });
+            if (!foundValue) {
+              keyData[key].push(value);
+              return false;
+            }
+            return true;
+          });
+        });
+
+        return !foundCollision;
+      };
+    },
+    metaSchema: {
+      type: 'array'
+    }
+  };
+
+  ajv.addKeyword('uniqueItemProperties', defFunc.definition);
+  return ajv;
+};

spec/schema-tests.spec.js

@@ -7,7 +7,7 @@ var defineKeywords = require('..');
 var ajvs = [
   defineKeywords(getAjv(),
     ['switch', 'patternRequired', 'formatMinimum', 'formatMaximum',
-     'if', 'prohibited', 'deepRequired', 'deepProperties', 'select']),
+      'uniqueItemProperties', 'if', 'prohibited', 'deepRequired', 'deepProperties', 'select']),
   defineKeywords(getAjv()),
   defineKeywords(getAjv(true)),
   defineKeywords(getAjvNoMeta()),

spec/tests/uniqueItemProperties.json

@@ -0,0 +1,88 @@
+[
+  {
+    "description": "uniqueItemProperties keyword validation with single property",
+    "schema": {
+      "type": "array",
+      "uniqueItemProperties": ["id"]
+    },
+    "tests": [
+      {
+        "description": "with all unique ids",
+        "data": [
+          { "id": 1 },
+          { "id": 2 }, { "id": 3 } ], "valid": true
+      },
+      {
+        "description": "without unique ids",
+        "data": [
+          { "id": 1 },
+          { "id": 1 },
+          { "id": 3 }
+        ],
+        "valid": false
+      },
+      {
+        "description": "with all unique object-ids",
+        "data": [
+          { "id": { "_id": 1, "date": 1495213151726 } },
+          { "id": { "_id": 2, "date": 1495213151727 } },
+          { "id": { "_id": 3, "date": 1495213151728 } }
+        ],
+        "valid": true
+      },
+      {
+        "description": "without unique object-ids",
+        "data": [
+          { "id": { "_id": 1, "date": 1495213151726 } },
+          { "id": { "_id": 1, "date": 1495213151726 } },
+          { "id": { "_id": 3, "date": 1495213151728 } }
+        ],
+        "valid": false
+      }
+    ]
+  },
+  {
+    "description": "uniqueItemProperties keyword validation with multiple properties",
+    "schema": {
+      "type": "array",
+      "uniqueItemProperties": ["id", "name"]
+    },
+    "tests": [
+      {
+        "description": "with all unique ids and names",
+        "data": [
+          { "id": 1, "name": "taco" },
+          { "id": 2, "name": "burrito" },
+          { "id": 3, "name": "salsa" }
+        ],
+        "valid": true
+      },
+      {
+        "description": "with unique ids but not unique names",
+        "data": [
+          { "id": 1, "name": "taco" },
+          { "id": 2, "name": "taco" },
+          { "id": 3, "name": "salsa" }
+        ],
+        "valid": false
+      }
+    ]
+  },
+  { "description": "uniqueItemProperties keyword validation with no properties",
+    "schema": {
+      "type": "array",
+      "uniqueItemProperties": []
+    },
+    "tests": [
+      {
+        "description": "with deepEqual like objects",
+        "data": [
+          { "id": 1 },
+          { "id": 1 },
+          { "id": 1 }
+        ],
+        "valid": true
+      }
+    ]
+  }
+]