/// <summary>
/// Drops the entire schema.
/// </summary>
/// <param name="connection"></param>
public static void Drop(NpgsqlConnection connection)
{
if (PostgreSQLSchemaTools.DetectRelationMembersTable(connection))
{
PostgreSQLSchemaTools.DropRelationMembersTable(connection);
}
if (PostgreSQLSchemaTools.DetectRelationTagsTable(connection))
{
PostgreSQLSchemaTools.DropRelationTagsTable(connection);
}
if (PostgreSQLSchemaTools.DetectRelationTable(connection))
{
PostgreSQLSchemaTools.DropRelationTable(connection);
}
if (PostgreSQLSchemaTools.DetectWayNodesTable(connection))
{
PostgreSQLSchemaTools.DropWayNodesTable(connection);
}
if (PostgreSQLSchemaTools.DetectWayTagsTable(connection))
{
PostgreSQLSchemaTools.DropWayTagsTable(connection);
}
if (PostgreSQLSchemaTools.DetectWayTable(connection))
{
PostgreSQLSchemaTools.DropWayTable(connection);
}
if (PostgreSQLSchemaTools.DetectNodeTagsTable(connection))
{
PostgreSQLSchemaTools.DropNodeTagsTable(connection);
}
if (PostgreSQLSchemaTools.DetectNodeTable(connection))
{
PostgreSQLSchemaTools.DropNodeTable(connection);
}
}
/// <summary>
/// Creates a new/gets the existing connection.
/// </summary>
/// <returns></returns>
private NpgsqlConnection CreateConnection()
{
if (_connection == null)
{
_connection = new NpgsqlConnection(_connectionString);
_connection.Open();
if (_createAndDetectSchema)
{ // creates or detects the tables.
PostgreSQLSchemaTools.CreateAndDetect(_connection);
}
}
if (_connection.State != System.Data.ConnectionState.Open)
{
_connection.Open();
}
return(_connection);
}
/// <summary>
/// Creates the entire schema but also detects existing tables.
/// </summary>
/// <param name="connection"></param>
public static void CreateAndDetect(NpgsqlConnection connection)
{
if (!PostgreSQLSchemaTools.DetectNodeTable(connection))
{
PostgreSQLSchemaTools.CreateNodeTable(connection);
}
if (!PostgreSQLSchemaTools.DetectNodeTagsTable(connection))
{
PostgreSQLSchemaTools.CreateNodeTagsTable(connection);
}
if (!PostgreSQLSchemaTools.DetectWayTable(connection))
{
PostgreSQLSchemaTools.CreateWayTable(connection);
}
if (!PostgreSQLSchemaTools.DetectWayTagsTable(connection))
{
PostgreSQLSchemaTools.CreateWayTagsTable(connection);
}
if (!PostgreSQLSchemaTools.DetectWayNodesTable(connection))
{
PostgreSQLSchemaTools.CreateWayNodesTable(connection);
}
if (!PostgreSQLSchemaTools.DetectRelationTable(connection))
{
PostgreSQLSchemaTools.CreateRelationTable(connection);
}
if (!PostgreSQLSchemaTools.DetectRelationTagsTable(connection))
{
PostgreSQLSchemaTools.CreateRelationTagsTable(connection);
}
if (!PostgreSQLSchemaTools.DetectRelationMembersTable(connection))
{
PostgreSQLSchemaTools.CreateRelationMembersTable(connection);
}
}
/// <summary>
/// Drops the relation tags table.
/// </summary>
/// <param name="connection"></param>
public static void DropRelationTagsTable(NpgsqlConnection connection)
{
PostgreSQLSchemaTools.ExecuteScript(connection, TABLE_RELATION_TAGS_DROP);
}
/// <summary>
/// Returns true if the relation tags table exists.
/// </summary>
/// <param name="connection"></param>
/// <returns></returns>
public static bool DetectRelationTagsTable(NpgsqlConnection connection)
{
return(PostgreSQLSchemaTools.DetectTable(connection, "relation_tags"));
}
/// <summary>
/// Creates the relation members table.
/// </summary>
/// <param name="connection"></param>
/// <returns></returns>
public static void CreateRelationMembersTable(NpgsqlConnection connection)
{
PostgreSQLSchemaTools.ExecuteScript(connection, TABLE_RELATION_MEMBERS_CREATION);
}
/// <summary>
/// Drops the way tags table.
/// </summary>
/// <param name="connection"></param>
public static void DropWayTagsTable(NpgsqlConnection connection)
{
PostgreSQLSchemaTools.ExecuteScript(connection, TABLE_WAY_TAGS_DROP);
}
/// <summary>
/// Creates the way tags table.
/// </summary>
/// <param name="connection"></param>
public static void CreateWayTagsTable(NpgsqlConnection connection)
{
PostgreSQLSchemaTools.ExecuteScript(connection, TABLE_WAY_TAGS_CREATION);
}
/// <summary>
/// Returns true if the way nodes table exists.
/// </summary>
/// <param name="connection"></param>
public static bool DetectWayNodesTable(NpgsqlConnection connection)
{
return(PostgreSQLSchemaTools.DetectTable(connection, "way_nodes"));
}
/// <summary>
/// Returns true if the node tags table exists.
/// </summary>
/// <param name="connection"></param>
/// <returns></returns>
public static bool DetectNodeTagsTable(NpgsqlConnection connection)
{
return(PostgreSQLSchemaTools.DetectTable(connection, "node_tags"));
}
/// <summary>
/// Drops the nodes table.
/// </summary>
/// <param name="connection"></param>
public static void DropNodeTable(NpgsqlConnection connection)
{
PostgreSQLSchemaTools.ExecuteScript(connection, TABLE_NODE_DROP);
}
/// <summary>
/// Creates the nodes table.
/// </summary>
/// <param name="connection"></param>
/// <returns></returns>
public static void CreateNodeTable(NpgsqlConnection connection)
{
PostgreSQLSchemaTools.ExecuteScript(connection, TABLE_NODE_CREATION);
}