$dst=$params['dst'];
$weight=$params['weight'];
+ // weight could be only positive
+ if ( $weight < 0) {
+ return false;
+ }
+
// if already exists
$q="select count(src) from neurons where dst ='$dst' and src = '$src'";
$set=$db->query($q);
return true;
}
+// getSynapseWeight
+
+// If synapse does not exists, weight is 1
+// Secure.
+// Returns synapse weight (from user to node)
+
+function getSynapseWeight($user_id,$node_id){
+ global $db;
+
+ if (!is_numeric($user_id))
+ { return -1; }
+ if (!is_numeric($node_id))
+ { return -1; }
+
+ $set=$db->query("select synapse_weight from neurons where src =".
+ $user_id." and dst = ".$node_id." and link='synapse'");
+
+ $set->next();
+ $synapes_weight=$set->getString('synapse_weight');
+ if (! ($synapse_weight) ) { $synapse_weight = 1;}
+ return $synapse_weight;
+
+}
}
+
+?>