Added an easy wrapper Column Database::execAndGet("query"), version number increased to 0.3.0

.cproject

@@ -467,7 +467,11 @@
 			</storageModule>
 			<storageModule moduleId="org.eclipse.cdt.core.externalSettings"/>
 			<storageModule moduleId="org.eclipse.cdt.core.language.mapping"/>
-			<storageModule moduleId="org.eclipse.cdt.internal.ui.text.commentOwnerProjectMappings"/>
+			<storageModule moduleId="org.eclipse.cdt.internal.ui.text.commentOwnerProjectMappings">
+				<doc-comment-owner id="org.eclipse.cdt.ui.doxygen">
+					<path value=""/>
+				</doc-comment-owner>
+			</storageModule>
 		</cconfiguration>
 		<cconfiguration id="cdt.managedbuild.config.gnu.exe.release.326780594">
 			<storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="cdt.managedbuild.config.gnu.exe.release.326780594" moduleId="org.eclipse.cdt.core.settings" name="Release">
@@ -929,7 +933,11 @@
 			</storageModule>
 			<storageModule moduleId="org.eclipse.cdt.core.language.mapping"/>
 			<storageModule moduleId="org.eclipse.cdt.core.externalSettings"/>
-			<storageModule moduleId="org.eclipse.cdt.internal.ui.text.commentOwnerProjectMappings"/>
+			<storageModule moduleId="org.eclipse.cdt.internal.ui.text.commentOwnerProjectMappings">
+				<doc-comment-owner id="org.eclipse.cdt.ui.doxygen">
+					<path value=""/>
+				</doc-comment-owner>
+			</storageModule>
 		</cconfiguration>
 	</storageModule>
 	<storageModule moduleId="cdtBuildSystem" version="4.0.0">

.gitignore

@@ -5,3 +5,4 @@ Release
 *.suo
 *.user
 *~
+core

TODO.txt

@@ -1,9 +1,8 @@
 Add a comparison of others C++ wrappers (code style, C++ design, in code documentation, tests, online documentation, examples, license, UTF-16) 
 
-Missing features in v0.2.0:
-- Statement::execStepAndGetScalar() easy wrapper
-- Database::execScalar() easy wrapper like CppSqlite
+Missing features in v0.3.0:
 - Database::tableExists
+- Blob
 - getColumnByName ? std::map getRow() ?
 
 Advanced missing features:

src/SQLiteC++/Database.cpp

@@ -10,7 +10,6 @@
 #include "Database.h"
 
 #include "Statement.h"
-#include "Column.h"
 
 namespace SQLite
 {
@@ -50,6 +49,18 @@ int Database::exec(const char* apQueries) // throw(SQLite::Exception);
     return sqlite3_changes(mpSQLite);
 }
 
+// Shortcut to execute a one step query and fetch the first column of the result.
+// WARNING: Be very careful with this dangerous method: you have to
+// make a COPY OF THE result, else it will be destroy before the next line
+// (when the underlying temporary Statement and Column objects are destroyed)
+Column Database::execAndGet(const char* apQuery) // throw(SQLite::Exception)
+{
+   Statement query(*this, apQuery);
+   query.executeStep();
+   return query.getColumn(0);
+}
+
+
 // Check if aRet equal SQLITE_OK, else throw a SQLite::Exception with the SQLite error message
 void Database::check(const int aRet) const // throw(SQLite::Exception)
 {

src/SQLiteC++/Database.h

@@ -11,14 +11,11 @@
 
 #include <sqlite3.h>
 #include "Exception.h"
+#include "Column.h"
 
 namespace SQLite
 {
 
-// Forward declarations
-class Statement;
-class Exception;
-
 /**
  * @brief RAII management of a SQLite Database Connection.
  *
@@ -68,6 +65,23 @@ public:
      */
     int exec(const char* apQueries); // throw(SQLite::Exception);
 
+    /**
+     * @brief Shortcut to execute a one step query and fetch the first column of the result.
+     *
+     *  This is a shortcut to execute a simple statement with a single result.
+     * This should be used only for non reusable queries (else you should use a Statement with bind()).
+     * This should be used only for queries with expected results (else an exception is fired).
+     *
+     * @warning WARNING: Be very careful with this dangerous method: you have to
+     *          make a COPY OF THE result, else it will be destroy before the next line
+     *          (when the underlying temporary Statement and Column objects are destroyed)
+     *
+     * @see also Statement class for handling queries with multiple results
+     *
+     * @param[in] apQuery  a UTF-8 encoded SQL query
+     */
+    Column execAndGet(const char* apQuery); // throw(SQLite::Exception);
+
     /**
      * @brief Set a busy handler that sleeps for a specified amount of time when a table is locked.
      *

src/SQLiteC++/SQLiteC++.h

@@ -32,5 +32,5 @@
  * with the value (X*1000000 + Y*1000 + Z) where X, Y, and Z are the same
  * numbers used in [SQLITECPP_VERSION].
  */
-#define SQLITECPP_VERSION           "0.2.0"
-#define SQLITECPP_VERSION_NUMBER    0002000
+#define SQLITECPP_VERSION           "0.3.0"
+#define SQLITECPP_VERSION_NUMBER    0003000

src/example1/main.cpp

@@ -58,13 +58,19 @@ private:
 
 int main (void)
 {
-    // Basic example (1/4) :
+    // Basic example (1/5) :
     try
     {
         // Open a database file
         SQLite::Database    db("example.db3");
         std::cout << "SQLite database file '" << db.getFilename().c_str() << "' opened successfully\n";
 
+        // TODO SRombauts:
+        //SQLite::Statement::Column col = db.execAndGet("SELECT value FROM test WHERE id=2");
+        //const char* pvalue = col;
+        std::string value = db.execAndGet("SELECT value FROM test WHERE id=2");
+        std::cout << "execAndGet=" << value << std::endl;
+
         // Compile a SQL query, containing one parameter (index 1)
         SQLite::Statement   query(db, "SELECT * FROM test WHERE size > ?");
         std::cout << "SQLite statement '" << query.getQuery().c_str() << "' compiled (" << query.getColumnCount () << " columns in the result)\n";
@@ -101,7 +107,7 @@ int main (void)
     }
 
     ////////////////////////////////////////////////////////////////////////////
-    // Object Oriented Basic example (2/4) :
+    // Object Oriented Basic example (2/5) :
     try
     {
         // Open the database and compile the query
@@ -117,8 +123,26 @@ int main (void)
         std::cout << "SQLite exception: " << e.what() << std::endl;
     }
 
+    // The execAndGet wrapper example (3/5) :
+    try
+    {
+        // Open a database file
+        SQLite::Database    db("example.db3");
+        std::cout << "SQLite database file '" << db.getFilename().c_str() << "' opened successfully\n";
+
+        // WARNING: Be very careful with this dangerous method: you have to
+        // make a COPY OF THE result, else it will be destroy before the next line
+        // (when the underlying temporary Statement and Column objects are destroyed)
+        std::string value = db.execAndGet("SELECT value FROM test WHERE id=2");
+        std::cout << "execAndGet=" << value << std::endl;
+    }
+    catch (std::exception& e)
+    {
+        std::cout << "SQLite exception: " << e.what() << std::endl;
+    }
+
     ////////////////////////////////////////////////////////////////////////////
-    // Simple batch queries example (3/4) :
+    // Simple batch queries example (4/5) :
     try
     {
         // Open a database file
@@ -141,7 +165,7 @@ int main (void)
     remove("test.db3");
 
     ////////////////////////////////////////////////////////////////////////////
-    // RAII transaction example (4/4) :
+    // RAII transaction example (5/5) :
     try
     {
         // Open a database file