Add default query options (#257)

README.md

@@ -1137,6 +1137,10 @@ const apolloProvider = new VueApollo({
   defaultOptions: {
     // apollo options applied to all components that are using apollo
     $loadingKey: 'loading',
+    // apollo options applied to all queries in components
+    $query: {
+        fetchPolicy: 'cache-and-network'
+    }
   },
 })
 ```

src/index.js

@@ -51,6 +51,10 @@ const launch = function launch () {
     // watchQuery
     for (let key in apollo) {
       if (key.charAt(0) !== '$') {
+        let options = apollo[key]
+        if(apollo.$query) {
+          options =  Object.assign({}, apollo.$query, options)
+        }
         if (!hasProperty(this, key) && !hasProperty(this.$props, key) && !hasProperty(this.$data, key)) {
           Object.defineProperty(this, key, {
             get: () => this.$data.$apolloData.data[key],
@@ -58,7 +62,7 @@ const launch = function launch () {
             configurable: true,
           })
         }
-        this.$apollo.addSmartQuery(key, apollo[key])
+        this.$apollo.addSmartQuery(key, options)
       }
     }