From: Andrea Zagli <azagli@libero.it>
Date: Fri, 30 Jul 2010 17:27:18 +0000 (+0200)
Subject: Added and managed drop_view tag.
X-Git-Url: https://saetta.ns0.it/gitweb?a=commitdiff_plain;h=ffa45326b19680262e414e50f36bc2d7b1601b3f;p=libzakdbt

Added and managed drop_view tag.
---

diff --git a/docs/dbtransformer.dtd b/docs/dbtransformer.dtd
index b040d08..28f1e99 100644
--- a/docs/dbtransformer.dtd
+++ b/docs/dbtransformer.dtd
@@ -1,6 +1,10 @@
 <!ELEMENT dbtransformer (transformation+)>
 
-<!ELEMENT transformation (comment?, gda_op*, sql*, drop_table*)>
+<!ELEMENT transformation (comment?,
+                          gda_op*,
+                          sql*,
+                          drop_table*,
+                          drop_view*)>
 
 <!ATTLIST transformation
 	id CDATA #REQUIRED
@@ -13,3 +17,7 @@
 <!ELEMENT drop_table (table_name)>
 
 <!ELEMENT table_name (#PCDATA) #REQUIRED>
+
+<!ELEMENT drop_view (view_name)>
+
+<!ELEMENT view_name (#PCDATA) #REQUIRED>
diff --git a/src/dbtransformer.c b/src/dbtransformer.c
index ad40381..8f25b00 100644
--- a/src/dbtransformer.c
+++ b/src/dbtransformer.c
@@ -667,7 +667,75 @@ dbt_parse_drop_table (Dbt *dbt, xmlNodePtr xnode)
 		}
 	else
 		{
-			g_warning ("You must provide the name of the table.");
+			g_warning ("You must provide the name of the table to drop.");
+			ret = FALSE;
+		}
+
+	return ret;
+}
+
+static gboolean
+dbt_parse_drop_view (Dbt *dbt, xmlNodePtr xnode)
+{
+	DbtPrivate *priv;
+
+	gboolean ret;
+
+	xmlNodePtr cur;
+	gchar *view_name;
+
+	GError *error;
+
+	ret = TRUE;
+
+	priv = DBT_GET_PRIVATE (dbt);
+
+	view_name = NULL;
+	cur = xnode->children;
+	while (cur != NULL && ret)
+		{
+			if (xmlStrcmp (cur->name, (const xmlChar *)"view_name") == 0)
+				{
+					view_name = g_strstrip (g_strdup ((gchar *)xmlNodeGetContent (cur)));
+				}
+
+			cur = cur->next;
+		}
+
+	if (view_name != NULL && g_strcmp0 (view_name, "") != 0)
+		{
+			gchar *sql;
+			GdaStatement *stmt;
+
+			sql = g_strdup_printf ("DROP VIEW %s", view_name);
+
+			error = NULL;
+			stmt = gda_sql_parser_parse_string (priv->gda_parser, sql, NULL, &error);
+			if (stmt == NULL)
+				{
+					g_warning ("Unable to create GdaStatement from sql: %s.\n%s",
+							   error != NULL && error->message != NULL ? error->message : "no detail",
+							   sql);
+					ret = FALSE;
+				}
+			else
+				{
+					guint nrows;
+
+					nrows = gda_connection_statement_execute_non_select (priv->gda_conn, stmt, NULL, NULL, &error);
+					if (nrows == -1)
+						{
+							g_warning ("NON SELECT error: %s.\n%s",
+									   error != NULL && error->message != NULL ? error->message : "no detail",
+									   sql);
+							ret = FALSE;
+						}
+					g_object_unref (stmt);
+				}
+		}
+	else
+		{
+			g_warning ("You must provide the name of the view to drop.");
 			ret = FALSE;
 		}
 
@@ -752,6 +820,10 @@ dbt_transform (Dbt *dbt)
 												{
 													tosave = dbt_parse_drop_table (dbt, xnode);
 												}
+											else if (xmlStrcmp (xnode->name, (const xmlChar *)"drop_view") == 0)
+												{
+													tosave = dbt_parse_drop_view (dbt, xnode);
+												}
 											else
 												{
 													g_warning ("Invalid tag: %s.", xnode->name);