Cache label by value instead of primary key

src/Label.cpp

@@ -7,7 +7,7 @@
 #include "SqliteTools.h"
 
 const std::string policy::LabelTable::Name = "Label";
-const std::string policy::LabelTable::CacheColumn = "id_label";
+const std::string policy::LabelTable::CacheColumn = "name";
 
 Label::Label( sqlite3* dbConnection, sqlite3_stmt* stmt )
     : m_dbConnection( dbConnection )
@@ -86,3 +86,14 @@ bool Label::createTable(sqlite3* dbConnection)
     return SqliteTools::createTable( dbConnection, req.c_str() );
 }
 
+
+
+const std::string&policy::LabelCachePolicy::key( const std::shared_ptr<Label> self )
+{
+    return self->name();
+}
+
+std::string policy::LabelCachePolicy::key(sqlite3_stmt* stmt)
+{
+    return Traits<KeyType>::Load( stmt, 1 );
+}

src/Label.h

@@ -5,6 +5,7 @@
 #include <string>
 
 class File;
+class Label;
 
 #include "ILabel.h"
 #include "Cache.h"
@@ -16,9 +17,17 @@ struct LabelTable
     static const std::string Name;
     static const std::string CacheColumn;
 };
+
+struct LabelCachePolicy
+{
+    typedef std::string KeyType;
+    static const std::string& key( const std::shared_ptr<Label> self );
+    static std::string key( sqlite3_stmt* stmt );
+};
+
 }
 
-class Label : public ILabel, public Cache<Label, ILabel, policy::LabelTable>
+class Label : public ILabel, public Cache<Label, ILabel, policy::LabelTable, policy::LabelCachePolicy>
 {
     public: