X-Git-Url: http://git.harvie.cz/?a=blobdiff_plain;f=wwwroot%2Fbackend%2Fmysql%2Fbackend.inc;h=515b344aa00d701f4b52671bb35029d220fdd738;hb=9b7c11be09e7a553b26667f673c6315209ddc210;hp=bea0e50cba6eaa46afeb9aaea646b4fcd21c6915;hpb=bd9d442f63d31ffc0d437175aa571211c0ead8c7;p=mirrors%2FKyberia-bloodline.git

diff --git a/wwwroot/backend/mysql/backend.inc b/wwwroot/backend/mysql/backend.inc
index bea0e50..515b344 100644
--- a/wwwroot/backend/mysql/backend.inc
+++ b/wwwroot/backend/mysql/backend.inc
@@ -341,22 +341,77 @@ function getKNeurons($user_id,$interval) {
 	return $k_array;
 }
 
-// Set synapse weight,
+// setSynapse
 
-// XXX TODO
+// Set synapse weight. 
+// If synapse does not exists, create a new one.
+// Secure.
+// Returns true on sucess, otherwise false.
 
-function setSynapseWeight($synapse_weightl) {
+function setSynapse($params){
 	global $db,$node,$error,$error_messages;
 
-	// XXX security fix
-//	$q="update neurons set synapse_weight='$synapse_weight' where dst = '$dst' and src = '$src'";
-//	$q="insert into neurons values('$synapse_weight','$dst','$src',NULL,'synapse',XXX,now(),XXX,$src)";
+	// security check
+	if ((!is_numeric($params['src'])) 
+		or (!is_numeric($params['dst']))
+		or (!is_numeric($params['weight']))) {
 
-//	$set=$db->query($q);
+		return false;
+	}
+
+	$src=$params['src'];
+	$dst=$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);
+	$set->next();
+	$isrc=$set->getString('count(src)');
+
+	if ( $isrc > 0 ) {
+		$q="update neurons set synapse_weight='$weight' 
+			where dst = '$dst' and src = '$src'";
+	} else { 
+		// FIXME no vector set
+		$q="insert into neurons values('$weight','$dst','$src',0,'synapse',
+						CURRENT_TIMESTAMP(),now(),NULL,$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();
+	$synapse_weight=$set->getString('synapse_weight');
+
+	if (! ($synapse_weight) ) { $synapse_weight = 1;}	
+
+	return $synapse_weight;
 
 }
+}
+
+?>