X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=src2%2FcreaImageIOSQLiteTreeHandler.cpp;h=3531408532557debd0325133ae74ae7a9435b275;hb=b0843014c5482f70050fab8036c6780172e3b6c9;hp=7d9f7ef4587ffeffbfb42abac854f05dff4666ff;hpb=3e7eac431db6401f86374784eaa66ad276af1bac;p=creaImageIO.git

diff --git a/src2/creaImageIOSQLiteTreeHandler.cpp b/src2/creaImageIOSQLiteTreeHandler.cpp
index 7d9f7ef..3531408 100644
--- a/src2/creaImageIOSQLiteTreeHandler.cpp
+++ b/src2/creaImageIOSQLiteTreeHandler.cpp
@@ -1,30 +1,19 @@
 #include <creaImageIOSQLiteTreeHandler.h>
 #include <creaImageIOSystem.h>
+#include <creaImageIOGimmick.h>
+#include <creaImageIOTree.h>
 
 #include "CppSQLite3.h"
 
 #include <sys/stat.h>
 
-//#include <creaImageIOSQLiteTreeHandlerStructure.h>
-
-//#include <creaImageIOUtilities.h>
-
-//#include <icons/database.xpm>
-
 #include <deque>
 
-#include "wx/wx.h"
-#include <wx/dir.h>
-#include <wx/filename.h>
-
-
-//#include <icons/close.xpm>
-
 #include <creaWx.h>
+#include <boost/algorithm/string.hpp>
 using namespace crea;
 
-#include <boost/filesystem.hpp>
-#include <boost/algorithm/string/replace.hpp>
+
 
 namespace creaImageIO
 {
@@ -36,8 +25,8 @@ namespace creaImageIO
     : mFileName(filename)
   {
     mDB = new CppSQLite3DB;
-    GimmickMessage(1,"SQLite version : "
-		   <<std::string(mDB->SQLiteVersion())<< std::endl);
+	mIsAdding=false;
+    //GimmickMessage(1,"SQLite version : "		   <<std::string(mDB->SQLiteVersion())<< std::endl);
   }
   //=============================================================
 
@@ -49,29 +38,6 @@ namespace creaImageIO
   //=============================================================
   
 
-  //=============================================================
-  //  void SQLiteTreeHandler::Print() const 
-  //  {
-    /*
-    std::cout << "-> '"<<GetName()<< "' - '"
-	      << GetFileName()<<"'"<<std::endl;
-    ChildrenListType::const_iterator i;
-    for (i=GetChildrenList().begin(); i!=GetChildrenList().end(); i++)
-      {
-	(*i)->Print();
-      }
-    */
-  //  }
-  //=============================================================
-  
-  //=====================================================================
-  /*
-  bool SQLiteTreeHandler::LocationIsValid()
-  {
-    // TO DO 
-    return true;
-  }
-  */
   //=====================================================================
 
 
@@ -126,13 +92,13 @@ namespace creaImageIO
   }
   //===================================================================== 
 
-
   //===================================================================== 
   int SQLiteTreeHandler::AddBranch( const AttributeMapType& attr )
   {
     tree::Node* parent = DBGetParent(attr);
     DBGraftToParent(parent,attr);
     return (parent->GetLevel()+1);
+	  
   }
   //===================================================================== 
  
@@ -143,18 +109,31 @@ namespace creaImageIO
    DBRecursiveRemoveNode(node);
  
     //    std::cout << "DELETE"<<std::endl;
-    if (node->GetParent())
-      {
-	node->GetParent()->RemoveChildrenFromList(node);
+   bool remove=false;
+   tree::Node* parent=node->GetParent();
+    if (parent)
+      {
+	int nC = parent->RemoveChildrenFromList(node);
+	if(nC>0 && parent->GetLevel()>0)
+	{	
+		std::stringstream out;
+		out <<nC;
+		SetAttribute(parent,"NumberOfChildren",out.str());
+	}
+	else
+	{
+		remove=true;
+	}
+
       }
     delete node;
+	if(remove&&parent->GetLevel()>0)
+	{
+		Remove(parent);
+	}
     //    std::cout << "DELETE OK"<<std::endl;
     return true;
    }
-
-    //========================================================================
-
-  
   
   //===================================================================== 
 
@@ -168,6 +147,24 @@ namespace creaImageIO
     return DBSetAttribute(n,key,value);
   }
   //===================================================================== 
+   //===================================================================== 
+  /// Sets an attribute
+  void SQLiteTreeHandler::SetAttribute(const std::string& levelDescriptor, 
+			      const std::string& key,
+			      const std::string& value,
+				  const std::string& searchParam, 
+				  const std::string& searchVal)
+  {
+	DBSetAttribute(levelDescriptor,key,value,searchParam, searchVal);
+  }
+  //===================================================================== 
+  /// Deletes a tuple
+  void SQLiteTreeHandler::DeleteTuple(std::string levelDescriptor, 
+								std::string key, std::string value)
+  {
+    DBDelete(levelDescriptor,key,value);
+  }
+  //===================================================================== 
 
 
 
@@ -195,11 +192,7 @@ namespace creaImageIO
   }
   //=====================================================================
 
-  //  sqlite3_exec(db, zSQL, 0, 0, 0);
-  //  sqlite3_free(zSQL);
-  //	char* CHAIN = format_sql(QUER);		\
-//  sqlite3_free(CHAIN);				\
-
+  
   //=====================================================================
 #define QUERYDB(QUER,RES)						\
     try									\
@@ -299,9 +292,9 @@ namespace creaImageIO
     command = "create table LEVELS\n";
     command += "( Name text )\n";
     UPDATEDB(command);
-    
+    int l;
     // Iterate the Levels
-    for (int l=0; l<GetTree().GetNumberOfLevels(); ++l)
+    for (l=0; l<GetTree().GetNumberOfLevels(); l++)
       {
 	command = "INSERT INTO LEVELS (Name) VALUES ('";
 	command += GetTree().GetLevelDescriptor(l).GetName();
@@ -362,8 +355,7 @@ namespace creaImageIO
 	command += "Flags int\n";	    
 	command += "\n)";
 	UPDATEDB(command);
-	
-	
+
 	// Fill the table *_ATTRIBUTES
 	LevelDescriptor::AttributeDescriptorListType::const_iterator i;
 	for (i  = GetTree().GetAttributeDescriptorList(l).begin();
@@ -381,7 +373,6 @@ namespace creaImageIO
 		   << i->GetGroup() << ","
 		   << i->GetElement() << ","
 		   << i->GetFlags() << ");";
-	    
 	    UPDATEDB(insert.str());
 	  }
 
@@ -421,7 +412,7 @@ namespace creaImageIO
   //=====================================================================
   bool SQLiteTreeHandler::DBImportTreeDescription()
   {
-    GimmickMessage(1,"Importing tree description from database ..."
+    GimmickMessage(1,"Importing tree description for database ..."
 		   <<std::endl);
 
     // Test table 'LEVELS' existence
@@ -518,14 +509,7 @@ namespace creaImageIO
 	 a!= GetTree().GetAttributeDescriptorList(0).end();
 	 ++a)
       {
-	/*
-	std::string v;
-	AttributeMapType::const_iterator i = attr.find(a->GetKey());
-	if ( i != attr.end() )  
-	  {
-	    v = i->second;
-	  }
-	*/
+
 	GetTree().UnsafeSetAttribute( a->GetKey(), "" );
       }
 
@@ -547,22 +531,6 @@ namespace creaImageIO
   }
   //=====================================================================
 
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
   //========================================================================
   /// 
   std::string& SQLformat(std::string& str)
@@ -600,7 +568,7 @@ namespace creaImageIO
 	  {
 	    continue;
 	  }
-	//	std::cout << "("<<i->first<<","<<i->second<<")"<<std::endl;
+
 	atts += "'" + i->first + "'";
 	values += "'" + SQLformat(i->second) + "'"; 
 	atts += ",";
@@ -644,7 +612,6 @@ namespace creaImageIO
   }
   //=====================================================================
 
-
   //=====================================================================
   int SQLiteTreeHandler::DBLoadChildren(tree::Node* node, 
 					int numberoflevels)
@@ -661,6 +628,7 @@ namespace creaImageIO
     if (node->GetChildrenLoaded()) 
       {
 	// Iterate the children 
+
 	tree::Node::ChildrenListType::iterator i;
 	for (i = node->GetChildrenList().begin();
 	     i!= node->GetChildrenList().end();
@@ -668,9 +636,12 @@ namespace creaImageIO
 	  {
 	    nbloaded += DBLoadChildren(*i,numberoflevels-1);
 	  }
+	node->SetChildrenLoaded(true);
 	return nbloaded;
+
       }
-    
+	else
+	{
     /// If children not loaded : do it and recurse
 
     // Query DB
@@ -680,27 +651,25 @@ namespace creaImageIO
     query += GetTree().GetLevelDescriptor(level+1).GetName();
     if (level>0)
       {
-	query += " WHERE PARENT_ID='" + node->UnsafeGetAttribute("ID") 
+	query += " WHERE PARENT_ID='" + node->GetAttribute("ID") 
 	  + "'";
       }
     CppSQLite3Query q;
     QUERYDB(query,q);
 
+	int p=0;
     while (!q.eof())
       {
+
+	//	std::cout << "DBLoadCh : creating node level "<<level+1<<std::endl;
+
 	nbloaded++;
 	Node* n = new Node(node);
 	for (int fld = 0; fld < q.numFields(); fld++)
 	  {
 	    n->UnsafeSetAttribute(q.fieldName(fld),q.getStringField(fld));	    
 	  }
-	/*
-	// Index 
-	TypeId ti;
-	ti.type = type;
-	ti.id = n->GetFieldValue("ID");    
-	mTypeIdToNodeMap[ti] = n;
-	*/
+
 	// recurse 
 	if ( numberoflevels != 1 ) 
 	  {
@@ -713,9 +682,11 @@ namespace creaImageIO
       }
 
     node->SetChildrenLoaded(true);
+	
     
     //    msw[2].Pause();
     return nbloaded;
+	}
   }
   //=====================================================================
 
@@ -745,8 +716,8 @@ namespace creaImageIO
   void SQLiteTreeHandler::DBGraftToParent( tree::Node* parent, 
 					    const AttributeMapType& attr)
   {
-    GimmickMessage(2,"Grafting to parent '"<<parent->GetLabel()
-		   <<"'"<<std::endl);
+    //    std::cout <<"Grafting to parent '"<<parent->GetLabel()
+    //		   <<"'"<<std::endl;
 
     for (int level = parent->GetLevel()+1;
 	 level < GetTree().GetNumberOfLevels();
@@ -754,46 +725,27 @@ namespace creaImageIO
       {
 	// Create Node
 	tree::Node* child = new tree::Node(parent,attr);
-	
+	child->SetChildrenLoaded(true);
+	if (level>1)
+	  {
+	    int nc = GetNumberOfChildren(parent)+1;
+	    
+	    //	std::cout<<"Number of children "<<parent->GetNumberOfChildren()<<std::endl;
+	    std::stringstream out;
+	    out << nc;
+	    SetAttribute(parent,"NumberOfChildren",out.str());
+	  }
+
 	// Set PARENT_ID if necessary 
 	if ( parent->GetLevel()>0 )
 	  child->SetAttribute("PARENT_ID",parent->GetAttribute("ID"));
 	
 	// Insert in DB
 	DBInsert(child);
-	/*
-	std::string val;
-	SQLAppendAttributesValues(child,val);
-	std::string insert("INSERT INTO ");
-	insert += GetTree().GetLevelDescriptor(child->GetLevel()).GetName();
-	insert += " " + val + ";";
-	UPDATEDB(insert);
 	
-	// Store DB id of newly created node;
-	long lastrow = mDB->lastRowId();
-	std::stringstream ri;
-	ri << mDB->lastRowId();
-	child->SetAttribute("ID",ri.str());
-	*/
 	// Down one level
 	parent = child;
-	
-	/*
-	// Insert in TypeId map
-	TypeId ti;
-	ti.type = node->GetType();
-	ti.id = node_id;
-	mTypeIdToNodeMap[ti] = node;
-	//    std::cout << "== Insert TypeId ("<<ti.type<<","<<ti.id<<")"<<std::endl; 
-	// 
-	msw[2].Pause();
-	
-	if (node->GetType()==Node::Patient) summary.added_patients++;
-	if (node->GetType()==Node::Study) summary.added_studies++;
-	if (node->GetType()==Node::Series) summary.added_series++;
-	if (node->GetType()==Node::Image) summary.added_images++;
-	*/
-      }
+	  }
   }
   //======================================================================
 
@@ -812,23 +764,48 @@ namespace creaImageIO
     sql += GetTree().GetLevelDescriptor(n->GetLevel()).GetName();
     sql += " SET ";
     sql += key;
-    sql += "='";
+    sql += " = '";
     sql += value;
-    sql += "' WHERE ID=";
+    sql += "' WHERE ID = '";
     sql += n->GetAttribute("ID");
+	sql +="'";
     //    sql += " LIMIT 1";
     UPDATEDB(sql);
+	return true;
   }
-  //===================================================================== 
 
+  //===================================================================== 
+  /// Sets an attribute of a Node
+  void SQLiteTreeHandler::DBSetAttribute(const std::string& levelDescriptor, 
+			      const std::string& key,
+			      const std::string& value,
+				  const std::string& searchParam, 
+				  const std::string& searchVal)
+  {
 
-  //=====================================================================
+    std::string sql = "UPDATE ";
+    sql += levelDescriptor;
+    sql += " SET ";
+    sql += key;
+    sql += " = '";
+    sql += value;
+    sql += "' WHERE ";
+	sql += searchParam;
+	sql += " = '";
+    sql += searchVal;
+	sql += "'";
+	std::cout<<sql<<std::endl;
+    UPDATEDB(sql);
+  }
+   //=====================================================================
   void SQLiteTreeHandler::DBRecursiveRemoveNode(Node* node)
   {
        
     std::string query = "DELETE FROM ";
    
-    query += GetTree().GetLevelDescriptor(node->GetLevel()).GetName();
+
+	query += GetTree().GetLevelDescriptor(node->GetLevel()).GetName();
+	
     query += " WHERE ID='"+ node->GetAttribute("ID") + "';";
  
     UPDATEDB(query);
@@ -839,403 +816,200 @@ namespace creaImageIO
 			    <<"' in level "<< GetTree().GetLevelDescriptor(node->GetLevel()).GetName()
 			    <<std::endl);
 
-    Node::ChildrenListType::iterator i;
-    for (i  = node->GetChildrenList().begin();
-	 i != node->GetChildrenList().end();
-	 i++)
-      {
-	DBRecursiveRemoveNode((*i));
-      }
-  }
-
-  //=====================================================================
 
-  //===================================================================== 
-  unsigned int SQLiteTreeHandler::GetNumberOfChildren(tree::Node* n) 
-  { 
-	  // Query DB
-	int nb=0;
-    int level = n->GetLevel();
-	if(GetTree().GetNumberOfLevels()!=(level+1))
+	if(node->GetNumberOfChildren()!=0)
 	{
-	std::string query = "SELECT * FROM ";
-    query += GetTree().GetLevelDescriptor(level+1).GetName();
-    if (level>0)
-      {
-	query += " WHERE PARENT_ID='" + n->UnsafeGetAttribute("ID") 
-	  + "'";
-      }
-
-    CppSQLite3Query q;
-    QUERYDB(query,q);
-	
-
-		while (!q.eof())
+		Node::ChildrenListType::iterator i;
+		for (i  = node->GetChildrenList().begin();
+		i != node->GetChildrenList().end();
+		i++)
 		{
-			nb++;
-			q.nextRow();
+		DBRecursiveRemoveNode((*i));
 		}
 	}
-    return nb; 
+	else if(node->GetLevel()<GetTree().GetNumberOfLevels()-1)
+	{
+		DBRecursiveRemoveNode(node->GetLevel()+1,node->GetAttribute("ID"));
+    }
   }
 
-  /*
   //=====================================================================
-  bool SQLiteTreeHandler::DBInsert(Node* alien_node,
-				   UpdateSummary& summary)
+  void SQLiteTreeHandler::DBRecursiveRemoveNode(int level, std::string parentId)
   {
-    //    std::cout << "SQLiteTreeHandler::Insert('"<<alien_node->GetLabel()
-    //	      <<"')"<<std::endl;
-    
-    //    if (!ChildrenLoaded()) DBLoadChildren(this,Node::Database);
-    
-    // Find parent
-    Node* parent;
-    std::string parent_id; 
-    parent = DBGetOrCreateParent(alien_node,parent_id,summary);
+    std::stringstream out;
+	std::stringstream result;
+	out<<"SELECT ID FROM "<<GetTree().GetLevelDescriptor(level).GetName()<<" WHERE PARENT_ID='"<<parentId<<"'";
+		
+	CppSQLite3Query q;
+	QUERYDB(out.str(),q);
+	
+	while (!q.eof())
+	  {
+	    for (int fld = 0; fld < q.numFields(); fld++)
+	      {
+			  result<<q.getStringField(fld)<<"#";
+	      }
+	    q.nextRow();
+	  }
+	  std::string res=result.str();
+	  size_t ini=0;
+	  size_t fin=0;
+	  while(fin<res.size()-1)
+	  {
+	   fin=res.find('#',ini);
+	   DBDelete(GetTree().GetLevelDescriptor(level).GetName(),"ID",res.substr(ini,fin-ini));
+	  if(level<GetTree().GetNumberOfLevels()-1)
+	  {
+		DBRecursiveRemoveNode(level+1,res.substr(ini,fin-ini));
+	  } 
+	   ini=fin+1;
+	  }
+	  
     
-    // Insert 
-    DBRecursiveGetOrCreateNode(alien_node,parent,parent_id,summary);
-   return true;
-  }
-  //=====================================================================
-
-
-  //=====================================================================
-  Node* SQLiteTreeHandler::DBGetOrCreateParent(Node* alien_node,
-						std::string& parent_id,
-						UpdateSummary& summary)
-  {
-    //    std::cout << "DBGetOrCreateParent '" << alien_node->GetLabel()<<"'"
-    //	      << std::endl;
-    // Load the patients if not already done
-    DBLoadChildren(this,Node::Patient);
-
-    parent_id = "";
-    Node* parent = this;
-
-    // The chain of ancestors
-    std::deque<Node*> chain;
-    Node* cur = alien_node->GetParent();
-    for (int type=Node::Patient; 
-	 type<alien_node->GetType();++type)
-      {
-	chain.push_front(cur);
-	cur = cur->GetParent();
-      }
-
-    // create the nodes if do not exist
-    std::deque<Node*>::iterator i;
-    for (i=chain.begin();i!=chain.end();++i)
-      {
-	//	std::cout << " cur = '"<<(*i)->GetLabel()<<"'"<<std::endl;
-	//	std::string cur_id = DBGetNodeId(*i,parent_id);
-	//	if (cur_id.size()==0)
-	//	  {
-	// Node does not exist : create it
-	std::string cur_id;
-	parent = DBGetOrCreateNode(*i, 
-					parent,
-					parent_id,
-					cur_id,
-					summary
-					);
-	DBLoadChildren(parent,parent->GetType()+1);
-
-	parent_id = cur_id;
-      }
-    return parent;
   }
-  //=====================================================================
-
-
 
   //=====================================================================
-  void SQLiteTreeHandler::DBRecursiveGetOrCreateNode(Node* alien_node, 
-						      Node* parent, 
-						      const std::string& parent_id,
-						      UpdateSummary& summary)
+  void SQLiteTreeHandler::DBDelete(std::string levelDescriptor, std::string key, std::string value)
   {
-    //    std::cout << "SQLiteTreeHandler::RecursiveGetOrCreateNode('"
-    //	      <<alien_node->GetLabel()
-    //	      <<"','"<<parent<<"','"<<parent_id<<"')"<<std::endl;
-    if (parent != 0) 
-      {
-	//	std::cout << " -- Parent = '"<<parent->GetLabel()<<"'"<<std::endl;
-      }   
-    std::string new_id;
-    Node* new_node = DBGetOrCreateNode(alien_node, 
-						 parent,
-						 parent_id,
-						 new_id,
-						 summary);
-    Node::ChildrenListType::iterator i;
-    for (i  = alien_node->GetChildrenList().begin();
-	 i != alien_node->GetChildrenList().end();
-	 i++)
-      {
-	DBRecursiveGetOrCreateNode((*i),new_node,new_id,summary);
-      }
+       
+    std::stringstream query;
+	query<<"DELETE FROM "<<levelDescriptor<<" WHERE "<<key<<"='"<<value<<"';";
+ 
+    UPDATEDB(query.str());
+	GimmickDebugMessage(2," Deleting: Query: "<<query.str()<<std::endl);
   }
-  //=====================================================================
 
 
-  //=====================================================================
-  Node* SQLiteTreeHandler::DBGetOrCreateNode(Node* alien_node, 
-						   Node* internal_parent,
-						   std::string parent_id,
-						   std::string& node_id,
-						   UpdateSummary& summary)
-  {
-    //   std::cout << "DBGetOrCreateNode('"<<alien_node->GetLabel()<<"','"
-    //	      << internal_parent << "','"<< parent_id<<"')"<<std::endl;
-    if (internal_parent != 0) 
-      {
-	//	std::cout << " -- Parent = '"<<internal_parent->GetLabel()<<"'"<<std::endl;
-      }
-    // Node Exists ? return it 
-    // First try among children of internal parent 
-    Node* node = GetChildrenLike(internal_parent,alien_node);
-    if (node>0)
-      {
-	node_id = node->UnsafeGetFieldValue("ID");
-	return node;
-      }
-    // Second : try in DB 
-   
-    // Does not exist : Create new one
-    node = new Node(alien_node->GetType(),this,internal_parent);
-    node->SetChildrenLoaded(true);
-    // Copy fields values from alien
-    Node::FieldValueMapType::iterator i,j;
-    for (i =  node->GetFieldValueMap().begin();
-	 i != node->GetFieldValueMap().end();
-	 i++)
-      {
-	j = alien_node->GetFieldValueMap().find(i->first);
-	if (j != alien_node->GetFieldValueMap().end() )
+  //===================================================================== 
+  void SQLiteTreeHandler::GetAttribute(std::string levelDescriptor,
+									   std::string searchParam, 
+									   std::string searchVal, 
+									   std::string key, 
+									   std::string& result) 
+  { 
+	std::stringstream out;
+	std::stringstream results;
+	out<<"SELECT "<<key<<" FROM "<<levelDescriptor;
+	if(searchParam!="")
+	{
+		out<<" WHERE "<<searchParam<<"='"<<searchVal<<"'";
+	}
+	
+	CppSQLite3Query q;
+	QUERYDB(out.str(),q);
+	
+	
+	while (!q.eof())
 	  {
-	    i->second = j->second;
+	    for (int fld = 0; fld < q.numFields(); fld++)
+	      {
+			  results<<q.getStringField(fld);
+			  if(searchParam=="")
+			  {
+				  results<<"#";
+			  }
+	      }
+	    q.nextRow();
 	  }
-      }
-
-    msw[2].Resume();
-    if (node->GetType()!=Node::Patient) 
-      node->SetFieldValue("PARENT_ID",parent_id);
-
-    // Insert in DB
-    std::string val;
-    BuildSQLFieldsValues(node,val);
-    std::string insert("INSERT INTO ");
-    insert += std::string(SQLiteTreeHandlerStructure::Table(node->GetType())) 
-      + " " + val + ";";
-    //    std::cout << "** SQL = '"<<insert<<"'"<<std::endl;
-    UPDATEDB(insert);
-    //    std::cout << "** SQL OK"<<std::endl;
-
-    // Store DB id of newly created node;
-    long lastrow = mDB->lastRowId();
-    std::stringstream ri;
-    ri << mDB->lastRowId();
-    node_id = ri.str();
-    //    std::cout << "LastRowId='"<<mDB->lastRowId()<<"' vs '"<<created_id<<"'"<<std::endl;
-
-    node->SetFieldValue("ID",node_id);
-    // Insert in TypeId map
-    TypeId ti;
-    ti.type = node->GetType();
-    ti.id = node_id;
-    mTypeIdToNodeMap[ti] = node;
-    //    std::cout << "== Insert TypeId ("<<ti.type<<","<<ti.id<<")"<<std::endl; 
-    // 
-    msw[2].Pause();
-
-    if (node->GetType()==Node::Patient) summary.added_patients++;
-    if (node->GetType()==Node::Study) summary.added_studies++;
-    if (node->GetType()==Node::Series) summary.added_series++;
-    if (node->GetType()==Node::Image) summary.added_images++;
-
-    return node;
+	result=results.str();
+      
   }
-  //=====================================================================
+  //===================================================================== 
+  unsigned int SQLiteTreeHandler::GetNumberOfChildren(tree::Node* n) 
+  { 
+    // Query DB
+    int nb=0;
+    int level = n->GetLevel();
 
-  //=====================================================================
-  Node* SQLiteTreeHandler::GetChildrenLike(Node* parent,
-					    Node* alien_node)
-  {
-    Node::ChildrenListType::iterator i;
-    for (i  = parent->GetChildrenList().begin();
-	 i != parent->GetChildrenList().end();
-	 i++)
+    if(level<GetTree().GetNumberOfLevels()&& level>0)
       {
-	Node::Type type = alien_node->GetType();
-	bool ok = true;
-	for (int j=0;
-	     j<SQLiteTreeHandlerStructure::NbQueryFields(type);
-	     j++) 
+	std::string query = "SELECT NumberOfChildren FROM ";
+	query += GetTree().GetLevelDescriptor(level).GetName();
+	if (level>0)
 	  {
-	    if ( 
-		alien_node->GetFieldValue(SQLiteTreeHandlerStructure::
-				    QueryField(type,j).key )   !=
-		(*i)->GetFieldValue(SQLiteTreeHandlerStructure::
-				    QueryField(type,j).key ) )
-	      {
-		ok = false;
-		break;
-	      }
+	    query += " WHERE ID='" + n->GetAttribute("ID") 
+	      + "'";
 	  }
-	if (ok) 
+	CppSQLite3Query q;
+	QUERYDB(query,q);
+	
+	
+	while (!q.eof())
 	  {
-	    return (*i);
+	    for (int fld = 0; fld < q.numFields(); fld++)
+	      {
+		nb=q.getIntField(fld);	
+	      }
+	    q.nextRow();
 	  }
       }
-    return 0;    
-  }
-  //=====================================================================
-
-  //=====================================================================
-  std::string SQLiteTreeHandler::DBGetNodeId(Node* node, 
-					      const std::string& parent_id)
-  {
-    //    std::cout << "SQLiteTreeHandler::DBGetNodeId('"<<node->GetLabel()
-    //	      <<"','"<<parent_id<<"')"
-    //	      <<std::endl;
-    msw[2].Resume();
-    int type = node->GetType();
-
-    std::string table = SQLiteTreeHandlerStructure::Table(type);
-    std::string where = "WHERE ";
-    
-    if (type!=Node::Patient)
-      {
-	where += "PARENT_ID='" + parent_id 
-	  //node->GetFieldValue("PARENT_ID") 
-	  + "' AND ";
-      }
-
-    for (int i=0;i<SQLiteTreeHandlerStructure::NbQueryFields(type);i++) 
-      {
-	where += SQLiteTreeHandlerStructure::QueryField(type,i).key + "='"
-	  + node->GetFieldValue(SQLiteTreeHandlerStructure::QueryField(type,i).key) + "' ";
-	if (i<SQLiteTreeHandlerStructure::NbQueryFields(type)-1)
-	  where += "AND ";
-    }
-
-    std::string query = "SELECT ID FROM " + table + " " + where + ";";							  
-    //    std::cout << "** SQL = '"<<query<<"'"<<std::endl;
-    CppSQLite3Query q;
-    QUERYDB(query,q);
-
-    if (!q.eof())
-      {
-	
-	//	std::cout << " - Node exists " << std::endl;
-	std::string id = q.getStringField(0);
-	//	std::cout << " id = '"<<id<<"'"<<std::endl;
-	msw[2].Pause();
-	return id;
-      }
-    msw[2].Pause();
-    return "";
-  }
-  //=====================================================================
-
-
-
-  //=====================================================================
-  Node* SQLiteTreeHandler::GetNodeFromTypeId(Node::Type type,
-				       const std::string& id)
-  {
-    //    std::cout << "GetNodeFromTypeId("<<type<<","<<id<<")"<<std::endl;
-
-    TypeId ti;
-    ti.type = type;
-    ti.id = id;
-    
-    TypeIdToNodeMapType::iterator i = mTypeIdToNodeMap.find(ti);
-    if (i == mTypeIdToNodeMap.end())
-      {
-
-	    std::cout << "Internal error : mTypeIdToNodeMap does not contain key"
-		      << std::endl;
-	    creaError("Internal error : mTypeIdToNodeMap does not contain key");
-	    // }
+    /*
+    if(nb==0)
+      { 
+	nb=1;
       }
-
-    //    std::cout << " ** Node = "<<i->second<<std::endl;
-    return i->second;
+    */
+    return nb; 
   }
- 
-  //=====================================================================
 
-  //=====================================================================
-  bool SQLiteTreeHandler::Remove(Node* node)
-  {
-
-    //DBRecursiveRemoveNode(node);
- 
-    //    std::cout << "DELETE"<<std::endl;
-    if (node->GetParent())
-      {
-	node->GetParent()->RemoveChildrenFromList(node);
-      }
-    delete node;
-    //    std::cout << "DELETE OK"<<std::endl;
-    return true;
-  }
-  
-  
-  //========================================================================
-
-  //=====================================================================
-  void SQLiteTreeHandler::DBRecursiveRemoveNode(Node* node)
+  //===================================================================== 
+  void SQLiteTreeHandler::GetTopLevelNodeId(const std::string& searchParam, const std::string& searchValue, std::string& parent_id) 
   {
-    //    std::cout << "SQLiteTreeHandler::DBRecursiveRemoveNode('"
-    //	      <<node->GetLabel()<<"')"<<std::endl;
+	  int level=GetTree().GetNumberOfLevels()-1;
+	  std::string sp=searchParam.c_str();
+	  std::string sv=searchValue.c_str();
 
-    std::string query = "DELETE FROM ";
-    query += SQLiteTreeHandlerStructure::Table(node->GetType());
-    query += " WHERE ID='"+ node->GetFieldValue("ID") + "';";
- 
-    UPDATEDB(query);
+	  while(level>1)
+	  {
+		std::stringstream out;
+		std::stringstream results;
+		out<<"SELECT PARENT_ID FROM "<<GetTree().GetLevelDescriptor(level).GetName();
+		out<<" WHERE "<<sp<<"='"<<sv<<"'";	
+		CppSQLite3Query q;
+		QUERYDB(out.str(),q);
+		
+		
+		while (!q.eof())
+		{
+			for (int fld = 0; fld < q.numFields(); fld++)
+			{
+				results<<q.getStringField(fld);
+			}
+			q.nextRow();
+		}
+		level=level-1;
+		sp="ID";
+		sv=results.str();
+	  }
+	  parent_id=sv;
 
-    Node::ChildrenListType::iterator i;
-    for (i  = node->GetChildrenList().begin();
-	 i != node->GetChildrenList().end();
-	 i++)
-      {
-	DBRecursiveRemoveNode((*i));
-      }
   }
-  
-  //=====================================================================
-  
-  //=====================================================================
-  int SQLiteTreeHandler::DBQueryNumberOfChildren(Node* node)
-  {
-    std::string query = "SELECT COUNT (ID) FROM ";
-    query += SQLiteTreeHandlerStructure::Table(node->GetType()+1);
-    if (node->GetType() != Node::Database) 
-      {
-	query += " WHERE PARENT_ID='"+ node->GetFieldValue("ID")+"'";
-      }
-    query  += ";";
-    
-    //   std::cout << "**SQL = "<< query << std::endl;
-    
-    CppSQLite3Query q;
-    QUERYDB(query,q);
-   
-     //    std::cout << "**RES = "<< q.getIntField(0) <<std::endl;
 
-    return q.getIntField(0);
-  }
   //=====================================================================
- 
- 
-
-*/
+  void SQLiteTreeHandler::RemoveEntries(const std::string i_table, 
+		const std::string i_attribute, 
+		const std::string i_operand, 
+		const std::string i_val)
+    {
+        std::stringstream query;
+		query<<"DELETE  FROM "<<i_table<<" WHERE "<<i_attribute<<" "<<i_operand<<" '"<<i_val<<"'";
+        UPDATEDB(query.str());
+	}
 
+	//=====================================================================
+  void SQLiteTreeHandler::BeginTransaction()
+    {
+		std::stringstream out;
+		out<<"begin transaction;";
+        UPDATEDB(out.str());
+	}
 
+	//=====================================================================
+  void SQLiteTreeHandler::EndTransaction()
+    {
+       std::stringstream out;
+		out<<"commit transaction;";
+        UPDATEDB(out.str());
+	}
 
 } // namespace creaImageIO