add query by document id to in node

Author: lgfa29

77-cloudant-cf.html

@@ -157,7 +157,15 @@
     </div>
 
     <div class="form-row">
-        <label for="node-input-design-doc"><i class="fa fa-search"></i> Search Idx.</label>
+        <label for="node-input-search"><i class="fa fa-search"></i> Search</label>
+        <select id="node-input-search">
+            <option value="_id_">by _id</option>
+            <option value="_idx_">by Search Index</option>
+        </select>
+    </div>
+
+    <div id="node-search-index-form" class="form-row">
+        <label>&nbsp;</label>
         <input type="text" id="node-input-design" style="width: 30%" placeholder="design document">
         /
         <input type="text" id="node-input-index" style="width: 30%" placeholder="index name">
@@ -169,10 +177,10 @@
     </div>
 
     <script>
-        $("#node-input-operation").change(function() {
-            var id = $("#node-input-operation option:selected").val();
-            if (id == "delete") $(".node-input-payonly").hide();
-            else $(".node-input-payonly").show();
+        $("#node-input-search").change(function() {
+            var searchType = $("#node-input-search option:selected").val();
+            if (searchType == "_id_") $("#node-search-index-form").hide();
+            else $("#node-search-index-form").show();
         });
     </script>
 </script>
@@ -208,6 +216,7 @@
             cloudant: { type: "cloudant", validate: validateServer },
             name    : { value: "" },
             database: { value: "", required: true },
+            search  : { value: "_id_", required: true },
             design  : { value: "", required: true },
             index   : { value: "", required: true }
         },

77-cloudant-cf.js

@@ -212,11 +212,12 @@ module.exports = function(RED) {
     function CloudantInNode(n) {
         RED.nodes.createNode(this,n);
 
-        this.design   = n.design;
-        this.index    = n.index;
-        this.database = n.database;
         this.cloudant = n.cloudant;
         this.url      = _getUrl(this, n);
+        this.database = n.database;
+        this.search   = n.search;
+        this.design   = n.design;
+        this.index    = n.index;
 
         if (this.url) {
             var node = this;
@@ -225,17 +226,24 @@ module.exports = function(RED) {
             var db   = nano.use(node.database);
 
             node.on("input", function(msg) {
-                var query = { q: msg.payload };
-
-                db.search(node.design, node.index, query, function(err, doc) {
-                    if (!err) {
-                        node.send({ payload: doc });
-                    } else {
-                        node.error(err);
-                    }
-                });
+                if (node.search === "_id_") {
+                    var id = msg.payload;
+                    db.get(id, sendDocumentOnPayload);
+                }
+                else if (node.search === "_idx_") {
+                    var query = { q: msg.payload };
+                    db.search(node.design, node.index, query, sendDocumentOnPayload);
+                }
             });
         }
+
+        function sendDocumentOnPayload(err, body) {
+            if (!err) {
+                node.send({ payload: body });
+            } else {
+                node.error(err);
+            }
+        }
     }
     RED.nodes.registerType("cloudant in", CloudantInNode);