[libgda] Hinding GDA's GValue API to Vala bindings * Including a gda_value_new_from_string version for Vala b

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit 91898cf4fce5332ba1570b3583e0db56ccf55341
Author: Daniel Espinosa <despinosa src gnome org>
Date:   Thu Feb 2 16:39:59 2012 -0600

    Hinding GDA's GValue API to Vala bindings
    * Including a gda_value_new_from_string version for Vala bindings as
    GdaData.DbField.value_from_string

 libgda/Gda-5.0.metadata                   |   13 +++++++++-
 libgda/data/DbField.vala                  |   38 +++++++++++++++++++++++++++++
 libgda/data/GdaData-5.0.gir               |   13 ++++++++++
 libgda/data/Table.vala                    |    2 +-
 libgda/libgda-5.0.vapi                    |   20 ---------------
 samples/vala/SampleDataModelIterable.vala |    2 -
 6 files changed, 64 insertions(+), 24 deletions(-)
---
diff --git a/libgda/Gda-5.0.metadata b/libgda/Gda-5.0.metadata
index d46ad56..1ab4b2d 100644
--- a/libgda/Gda-5.0.metadata
+++ b/libgda/Gda-5.0.metadata
@@ -6,7 +6,6 @@ Set.new_from_spec_node.xml_spec type="Xml.Node*"
 DataModel.add_data_from_xml_node.node type="Xml.Node*"
 utility_data_model_dump_data_to_xml.parent type="Xml.Node*"
 utility_holder_load_attributes.node type="Xml.Node*"
-value_new_from_xml.node type="Xml.Node*"
 DataModelImport.new_xml_node.node type="Xml.Node*"
 ServerOperation.load_data_from_xml.node type="Xml.Node*"
 // type overrides for GIR not well detected
@@ -44,3 +43,15 @@ Holder.get_value nullable=true
 Row.get_value nullable=true
 Numeric.get_string nullable=true
 //Numeric.number hidden=true
+//value_new_from_string skip=true
+value_copy skip=true
+value_new skip=true
+value_new_null skip=true
+value_new_default skip=true
+value_new_binary skip=true
+value_new_blob skip=true
+value_new_blob_from_file skip=true
+value_new_timestamp_from_timet skip=true
+value_new_from_string skip=true
+value_new_from_xml skip=true
+//value_new_from_xml.node type="Xml.Node*"
diff --git a/libgda/data/DbField.vala b/libgda/data/DbField.vala
index 7d0f390..2d018e8 100644
--- a/libgda/data/DbField.vala
+++ b/libgda/data/DbField.vala
@@ -45,5 +45,43 @@ namespace GdaData
 			NO_MODIF,
 			UNUSED
 		}
+		
+		public static Value? value_from_string (string as_string, Type type)
+		{
+			// FIXME: No all basic types have support to parse from string se bug 669278 
+			
+			if (type == typeof (bool)) {
+				if ((as_string[0] == 't') || (as_string[0] == 'T') || as_string == "true")
+					return true;
+				if ((as_string[0] == 'f') || (as_string[0] == 'F') || as_string == "false")
+					return false;
+				int i =  int.parse(as_string);
+				return i==0 ? false : true;
+			}
+			if (type == typeof (int64)) 
+				return int64.parse (as_string);
+			if (type == typeof (uint64))
+				return uint64.parse (as_string);
+			if (type == typeof (int))
+				return int.parse (as_string);
+//			if (type == typeof (short))
+//				return short.parse (as_string);
+//			if (type == typeof (ushort))
+//				return ushort.parse (as_string);
+			if (type == typeof (long))
+				return long.parse (as_string);
+//			if (type == typeof (float))
+//				return float.parse (as_string);
+//			if (type == typeof (double))
+//				return double.parse (as_string);
+			if (type == typeof (Gda.Numeric))
+			{
+				var n = new Gda.Numeric ();
+				n.set_from_string (as_string);
+				return n;
+			}
+			
+			return as_string;
+		}
 	}
 }
diff --git a/libgda/data/GdaData-5.0.gir b/libgda/data/GdaData-5.0.gir
index a26a01f..60f8795 100644
--- a/libgda/data/GdaData-5.0.gir
+++ b/libgda/data/GdaData-5.0.gir
@@ -794,6 +794,19 @@
 				<type name="utf8" c:type="gchar*"/>
 			</return-value>
 		</virtual-method>
+		<function name="value_from_string" c:identifier="gda_data_db_field_value_from_string">
+			<parameters>
+				<parameter name="as_string" transfer-ownership="none">
+					<type name="utf8" c:type="const gchar*"/>
+				</parameter>
+				<parameter name="type" transfer-ownership="none">
+					<type name="GObject.Type" c:type="GType"/>
+				</parameter>
+			</parameters>
+			<return-value transfer-ownership="full" allow-none="1">
+				<type name="GObject.Value" c:type="GValue*"/>
+			</return-value>
+		</function>
 		<property name="value" writable="1">
 			<type name="GObject.Value" c:type="GValue*"/>
 		</property>
diff --git a/libgda/data/Table.vala b/libgda/data/Table.vala
index b92da4a..7d02f1c 100644
--- a/libgda/data/Table.vala
+++ b/libgda/data/Table.vala
@@ -59,7 +59,7 @@ namespace GdaData
 				string fdv = (string) mt.get_value_at (mt.get_column_index ("column_default"), r);
 				if (fdv != null) {
 					attr = attr & DbField.Attribute.CAN_BE_DEFAULT;
-					//Value? dv = Gda.value_new_from_string (fdv, ft);
+					var dv = DbField.value_from_string (fdv, ft);
 				}
 				string fai = (string) mt.get_value_at (mt.get_column_index ("extras"), r);
 				bool fai_b = false;
diff --git a/libgda/libgda-5.0.vapi b/libgda/libgda-5.0.vapi
index d3fd7b4..7a0bbbf 100644
--- a/libgda/libgda-5.0.vapi
+++ b/libgda/libgda-5.0.vapi
@@ -2071,8 +2071,6 @@ namespace Gda {
 	[CCode (cheader_filename = "libgda/libgda.h")]
 	public static int value_compare (GLib.Value value1, GLib.Value value2);
 	[CCode (cheader_filename = "libgda/libgda.h")]
-	public static GLib.Value value_copy (GLib.Value value);
-	[CCode (cheader_filename = "libgda/libgda.h")]
 	public static int value_differ (GLib.Value value1, GLib.Value value2);
 	[CCode (cheader_filename = "libgda/libgda.h")]
 	public static void value_free (owned GLib.Value? value);
@@ -2097,24 +2095,6 @@ namespace Gda {
 	[CCode (cheader_filename = "libgda/libgda.h")]
 	public static bool value_is_number (GLib.Value value);
 	[CCode (cheader_filename = "libgda/libgda.h")]
-	public static GLib.Value value_new (GLib.Type type);
-	[CCode (cheader_filename = "libgda/libgda.h")]
-	public static GLib.Value value_new_binary (uint8 val, long size);
-	[CCode (cheader_filename = "libgda/libgda.h")]
-	public static GLib.Value value_new_blob (uint8 val, long size);
-	[CCode (cheader_filename = "libgda/libgda.h")]
-	public static GLib.Value value_new_blob_from_file (string filename);
-	[CCode (cheader_filename = "libgda/libgda.h")]
-	public static GLib.Value value_new_default (string? default_val);
-	[CCode (cheader_filename = "libgda/libgda.h")]
-	public static GLib.Value value_new_from_string (string as_string, GLib.Type type);
-	[CCode (cheader_filename = "libgda/libgda.h")]
-	public static GLib.Value value_new_from_xml ([CCode (type = "xmlNodePtr")] Xml.Node* node);
-	[CCode (cheader_filename = "libgda/libgda.h")]
-	public static GLib.Value value_new_null ();
-	[CCode (cheader_filename = "libgda/libgda.h")]
-	public static GLib.Value value_new_timestamp_from_timet (long val);
-	[CCode (cheader_filename = "libgda/libgda.h")]
 	public static void value_reset_with_type (GLib.Value value, GLib.Type type);
 	[CCode (cheader_filename = "libgda/libgda.h")]
 	public static void value_set_binary (GLib.Value value, Gda.Binary binary);
diff --git a/samples/vala/SampleDataModelIterable.vala b/samples/vala/SampleDataModelIterable.vala
index 3ddfc34..49b4344 100644
--- a/samples/vala/SampleDataModelIterable.vala
+++ b/samples/vala/SampleDataModelIterable.vala
@@ -52,8 +52,6 @@ namespace Sample {
 			t.connection = connection;
 			t.name = "user";
 			this.itermodel = new RecordCollection (model, t);
-			var pxy = new DataProxy.with_data_model (model);
-			stdout.printf(pxy.dump_as_string ());
 		}
 		
 		public void iterating ()