Added postalcode rules for node-postal call and fallbacks

middleware/confidenceScoreFallback.js

@@ -76,6 +76,8 @@ function checkFallbackLevel(req, hit) {
         return 0.8;
       case 'street':
         return 0.8;
+      case 'postalcode':
+        return 0.8;    
       case 'localadmin':
       case 'locality':
       case 'borough':
@@ -137,38 +139,44 @@ const fallbackRules = [
     expectedLayers: ['street']
   },
   {
-    name: 'neighbourhood',
+    name: 'postalcode',
     notSet: ['query', 'number', 'street'],
+    set: ['postalcode'],
+    expectedLayers: ['postalcode']
+  },
+  {
+    name: 'neighbourhood',
+    notSet: ['query', 'number', 'street', 'postalcode'],
     set: ['neighbourhood'],
     expectedLayers: ['neighbourhood']
   },
   {
     name: 'borough',
-    notSet: ['query', 'number', 'street', 'neighbourhood'],
+    notSet: ['query', 'number', 'street', 'postalcode', 'neighbourhood'],
     set: ['borough'],
     expectedLayers: ['borough']
   },
   {
     name: 'city',
-    notSet: ['query', 'number', 'street', 'neighbourhood', 'borough'],
+    notSet: ['query', 'number', 'street', 'postalcode', 'neighbourhood', 'borough'],
     set: ['city'],
     expectedLayers: ['borough', 'locality', 'localadmin']
   },
   {
     name: 'county',
-    notSet: ['query', 'number', 'street', 'neighbourhood', 'borough', 'city'],
+    notSet: ['query', 'number', 'street', 'postalcode', 'neighbourhood', 'borough', 'city'],
     set: ['county'],
     expectedLayers: ['county']
   },
   {
     name: 'state',
-    notSet: ['query', 'number', 'street', 'neighbourhood', 'borough', 'city', 'county'],
+    notSet: ['query', 'number', 'street', 'postalcode', 'neighbourhood', 'borough', 'city', 'county'],
     set: ['state'],
     expectedLayers: ['region']
   },
   {
     name: 'country',
-    notSet: ['query', 'number', 'street', 'neighbourhood', 'borough', 'city', 'county', 'state'],
+    notSet: ['query', 'number', 'street', 'postalcode', 'neighbourhood', 'borough', 'city', 'county', 'state'],
     set: ['country'],
     expectedLayers: ['country']
   }

middleware/trimByGranularityStructured.js

@@ -24,6 +24,7 @@ const layers = [
   'venue',
   'address',
   'street',
+  'postalcode',
   'neighbourhood',
   ['borough', 'locality'],
   'localadmin',
@@ -46,6 +47,7 @@ const explicit_borough_layers = [
   'venue',
   'address',
   'street',
+  'postalcode',
   'neighbourhood',
   'borough',
   'locality',

query/search.js

@@ -135,7 +135,7 @@ function getQuery(vs) {
 
   logger.info(`[query:search] [search_input_type:${determineQueryType(vs)}]`);
 
-  if (hasStreet(vs) || isPostalCodeOnly(vs)) {
+  if (hasStreet(vs) || isPostalCodeOnly(vs) || isPostalCodeWithCountry(vs)) {
     return {
       type: 'fallback',
       body: fallbackQuery.render(vs)
@@ -182,4 +182,18 @@ function isPostalCodeOnly(vs) {
 
 }
 
+
+function isPostalCodeWithCountry(vs) {
+    var isSet = (layer) => {
+        return vs.isset(`input:${layer}`);
+    };
+    
+    var allowedFields = ['postcode', 'country'];
+    var disallowedFields = ['query', 'category', 'housenumber', 'street', 'locality',
+                          'neighbourhood', 'borough', 'county', 'region'];
+        
+    return allowedFields.every(isSet) &&
+        !disallowedFields.some(isSet);
+}
+
 module.exports = generateQuery;