Answer 1: Nope. No good docs.
Answer 2: The following worked in 2.1 rc3
orient.getGraph().command( "sql", "update Item set l_tags = '' where @rid in
?", [tagged] );
So you could try
var nearbyNodes = mydb.command('sql',"select in('Contributes_To') from "
+originNode, []);
Notice the the empty array. Maybe it's a required parameter.
Answer 3:
Check out
https://github.com/orientechnologies/orientdb/issues/2390
Here's what I'm using (from above link without some logging code).
toJSObject = """
// This function should return a javascript object when you give it java object
like List, Map, OResultSet etc. //
//function toJSObject(obj) {
function mapToJSObject(m) {
var ret = {};
// log("" + m + " IS A MAP (" + m.getClass() + ")");
var it = m.keySet().iterator();
while (it.hasNext()) {
var key = it.next();
ret[key] = toJSObject(m.get(key));
}
return ret;
};
function collectionToJSObject(c) {
var ret = [];
// log("" + c + " IS A COLLECTION (" + c.getClass() + ")");
var it = c.iterator();
while (it.hasNext()) {
ret.push(toJSObject(it.next()));
}
return ret;
};
if (obj == null) {
return "";
} else if (typeof obj == 'object') {
if (obj.getClass) {
//it's a java object !!!
var objClass = obj.getClass();
if (objClass == "class java.lang.String") {
return new String(obj);
} else if (objClass == "class java.lang.Integer" || objClass ==
"class java.lang.Long") {
return parseInt(obj);
} else if (objClass == "class java.lang.Float" || objClass ==
"class java.lang.Double") {
return parseFloat(obj);
} else if (obj.iterator) {
//Java COLLECTION (example ArrayList)
return collectionToJSObject(obj);
} else if (obj.keySet) {
//it's a Map (class java.util.HashMap for example)
return mapToJSObject(obj);
} else if (obj.getKey) {
// class java.util.LinkedHashMap
var ret = {};
ret[obj.getKey()] = toJSObject(obj.getValue());
return ret;
} else {
var ret = "[" + obj.getClass() + " Fields] ";
for (var key in obj) {
ret += key + ", ";
}
return ret;
}
} else {
var ret = {};
for (var key in obj) {
if (obj.hasOwnProperty(key)) {
ret[key] = toJSObject(obj[key]);
}
}
return ret;
}
} else { //return as-is
return obj;
}
//}
"""
*Other tips.*
*1. Hook functions provide the 'doc' variable that you can use. For example.*
*var val = doc.field('propName')*
*2. See the following file for other methods provided by 'doc'*
core/src/main/java/com/orientechnologies/orient/core/record/impl/ODocument.java
<https://github.com/orientechnologies/orientdb/blob/9c8c12bc1207e6607048ba94527bd1c09b32bcfa/core/src/main/java/com/orientechnologies/orient/core/record/impl/ODocument.java>
3. If you are making changes in the hook function, be sure to
return 'RECORD_CHANGED';
4. Where java function requires a vararg (...), provide an array, even for
single values. For example, to save an array to a field.
var OType = com.orientechnologies.orient.core.metadata.schema.OType
doc.field('prop1', arrayValue, [OType.EMBEDDEDSET])
On Monday, May 25, 2015 at 10:21:30 AM UTC-7, Joao Barcia wrote:
>
> Hi everyone,
>
> First of all, thanks for the great work on OrientDB! We've been really
> amazed with it. The only major roadblock we have found is functions.
>
> We've spent some time trying to implement simple functions in the studio
> and the lack of documentation mixed with seemingly changing syntax makes
> things quite difficult. i.e.: orient.getGraph() function seems to work on
> 2.0.3 but not on 2.0.9 or 2.1-rc2.
>
> Here is the code we have so far running on 2.0.3:
> "
> var mydb = orient.getGraph();
>
> var nearbyNodes = mydb.command('sql',"select in('Contributes_To') from "
> +originNode);
>
> return nearbyNodes;
> "
>
> I would like to iterate through each of the nodes returned from the query.
> Inside of each node I would like to apply a javascript function
> "propagation()" to the parameter "activation" from that node and change it
> accordingly.
>
> So,
>
> *QUESTION 1* - Is there an updated and reliable documentation source for
> JavaScript Functions in OrientDB?
> *QUESTION 2* - What is the correct way of doing an SQL command for newer
> versions (2.0.9 and 2.1-rc2)? The example above does not seem to work in
> new versions.
> *QUESTION 3* - What is the correct way of handling the returned objects?
> As it was explained here
> <http://stackoverflow.com/questions/27657784/how-to-extract-the-result-of-a-query-from-json-inside-a-custom-javascript-functi>
>
> does not seem to work
>
> Thank you very much
>
>
> Cheers,
> Joao
>
--
---
You received this message because you are subscribed to the Google Groups
"OrientDB" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/d/optout.
