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update to mongodb node to allow both save and insert.

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This commit is contained in:
Dave C-J 2013-10-28 09:58:56 +00:00
parent 488a039781
commit c193779f67
2 changed files with 41 additions and 35 deletions
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25
nodes/storage/66-mongodb.html
View File

@ -60,8 +60,9 @@
<div class="form-row"> <div class="form-row">
<label for="node-input-operation"><i class="icon-wrench"></i> Operation</label> <label for="node-input-operation"><i class="icon-wrench"></i> Operation</label>
<select type="text" id="node-input-operation" style="display: inline-block; vertical-align: top;"> <select type="text" id="node-input-operation" style="display: inline-block; vertical-align: top;">
<option value=store>Store</option> <option value=store>save</option>
<option value=delete>Delete</option> <option value=insert>insert</option>
<option value=delete>remove</option>
</select> </select>
</div> </div>
<div class="form-row node-input-payonly"> <div class="form-row node-input-payonly">
@ -83,13 +84,13 @@
</script> </script>
<script type="text/x-red" data-help-name="mongodb out"> <script type="text/x-red" data-help-name="mongodb out">
<p>A simple MongoDB output node. Stores the <b>msg</b> object in a chosen collection.</p> <p>A simple MongoDB output node. Stores the <b>msg</b> object in a chosen collection.</p>
<p>By default MongoDB creates an <i>_id</i> property as the primary key - so repeated injections of the same <b>msg</b> will result in many database entries.</p> <p>By default MongoDB creates an <i>_id</i> property as the primary key - so repeated injections of the same <b>msg</b> will result in many database entries.</p>
<p>If this is NOT the desired behaviour - ie you want repeated entries to overwrite, then you must set the <b>msg._id</b> property to be a constant by the use of a previous function node.</p> <p>If this is NOT the desired behaviour - ie you want repeated entries to overwrite, then you must set the <b>msg._id</b> property to be a constant by the use of a previous function node.</p>
<p>This could be a unique constant or you could create one based on some other msg property.</p> <p>This could be a unique constant or you could create one based on some other msg property.</p>
<p>Currently we do not limit or cap the collection size at all... this may well change.</p> <p>Currently we do not limit or cap the collection size at all... this may well change.</p>
<p>You can also choose to <b>remove</b> items. To do so the <b>msg.payload</b> <i>MUST</i> contain an object that will select the items(s) to remove. <p>You can also choose to <b>remove</b> items. To do so the <b>msg.payload</b> <i>MUST</i> contain an object that will select the items(s) to remove.
A blank object will delete <i>all of the objects</i> in the collection. You have been warned...</p> A blank object will delete <i>all of the objects</i> in the collection. You have been warned...</p>
</script> </script>
<script type="text/javascript"> <script type="text/javascript">
@ -134,9 +135,9 @@
</script> </script>
<script type="text/x-red" data-help-name="mongodb in"> <script type="text/x-red" data-help-name="mongodb in">
<p>Queries a MongoDB collection by using the <b>msg.payload</b> to be a MongoDB query statement as per the .find() function.</p> <p>Queries a MongoDB collection by using the <b>msg.payload</b> to be a MongoDB query statement as per the .find() function.</p>
<p>You may also (via a function) set a <b>msg.projection</b> object to constrain the returned fields, a <b>msg.sort</b> object and a <b>msg.limit</b> object.</p> <p>You may also (via a function) set a <b>msg.projection</b> object to constrain the returned fields, a <b>msg.sort</b> object and a <b>msg.limit</b> object.</p>
<p>All are optional - see the <a href="http://docs.mongodb.org/manual/reference/method/db.collection.find/" target="new"><i>MongoDB find docs</i></a> for examples.</p> <p>All are optional - see the <a href="http://docs.mongodb.org/manual/reference/method/db.collection.find/" target="new"><i>MongoDB find docs</i></a> for examples.</p>
</script> </script>
<script type="text/javascript"> <script type="text/javascript">

51
nodes/storage/66-mongodb.js
View File

@ -42,19 +42,24 @@ function MongoOutNode(n) {
if (err) { node.error(err); } if (err) { node.error(err); }
else { else {
node.clientDb.collection(node.collection,function(err,coll) { node.clientDb.collection(node.collection,function(err,coll) {
if (err) { node.error(err); } if (err) { node.error(err); }
else { else {
node.on("input",function(msg) { node.on("input",function(msg) {
if (node.operation == "store") { if (node.operation == "store") {
delete msg._topic; delete msg._topic;
if (node.payonly) coll.save(msg.payload,function(err,item){ if (err){node.error(err);} }); if (node.payonly) coll.save(msg.payload,function(err,item){ if (err){node.error(err);} });
else coll.save(msg,function(err,item){if (err){node.error(err);}}); else coll.save(msg,function(err,item){if (err){node.error(err);}});
} }
if (node.operation == "delete") { else if (node.operation == "insert") {
coll.remove(msg.payload, {w:1}, function(err, items){ if (err) node.error(err); }); delete msg._topic;
} if (node.payonly) coll.insert(msg.payload,function(err,item){ if (err){node.error(err);} });
}); else coll.insert(msg,function(err,item){if (err){node.error(err);}});
} }
if (node.operation == "delete") {
coll.remove(msg.payload, {w:1}, function(err, items){ if (err) node.error(err); });
}
});
}
}); });
} }
}); });
@ -62,11 +67,11 @@ function MongoOutNode(n) {
this.error("missing mongodb configuration"); this.error("missing mongodb configuration");
} }
this.on("close", function() { this.on("close", function() {
if (this.clientDb) { if (this.clientDb) {
this.clientDb.close(); this.clientDb.close();
} }
}); });
} }
RED.nodes.registerType("mongodb out",MongoOutNode); RED.nodes.registerType("mongodb out",MongoOutNode);
@ -105,10 +110,10 @@ function MongoInNode(n) {
this.error("missing mongodb configuration"); this.error("missing mongodb configuration");
} }
this.on("close", function() { this.on("close", function() {
if (this.clientDb) { if (this.clientDb) {
this.clientDb.close(); this.clientDb.close();
} }
}); });
} }
RED.nodes.registerType("mongodb in",MongoInNode); RED.nodes.registerType("mongodb in",MongoInNode);