public void test_bind_parameter_index()
{
using (sqlite3 db = ugly.open(":memory:"))
{
db.exec("CREATE TABLE foo (x int, v int, t text, d real, b blob, q blob);");
using (sqlite3_stmt stmt = db.prepare("INSERT INTO foo (x,v,t,d,b,q) VALUES (:x,:v,:t,:d,:b,:q)"))
{
Assert.IsTrue(stmt.stmt_readonly() == 0);
Assert.AreEqual(stmt.bind_parameter_count(), 6);
Assert.AreEqual(stmt.bind_parameter_index(":m"), 0);
Assert.AreEqual(stmt.bind_parameter_index(":x"), 1);
Assert.AreEqual(stmt.bind_parameter_index(":v"), 2);
Assert.AreEqual(stmt.bind_parameter_index(":t"), 3);
Assert.AreEqual(stmt.bind_parameter_index(":d"), 4);
Assert.AreEqual(stmt.bind_parameter_index(":b"), 5);
Assert.AreEqual(stmt.bind_parameter_index(":q"), 6);
Assert.AreEqual(stmt.bind_parameter_name(1), ":x");
Assert.AreEqual(stmt.bind_parameter_name(2), ":v");
Assert.AreEqual(stmt.bind_parameter_name(3), ":t");
Assert.AreEqual(stmt.bind_parameter_name(4), ":d");
Assert.AreEqual(stmt.bind_parameter_name(5), ":b");
Assert.AreEqual(stmt.bind_parameter_name(6), ":q");
}
}
}
public static void bind(this sqlite3_stmt stmt, params object[] a)
{
if (a == null)
{
return;
}
int count = Math.Min(stmt.bind_parameter_count(), a.Length);
// TODO instead of Math.Min(), consider comparing the two
// counts and throwing if they're not equal.
for (int i = 0; i < count; i++)
{
int ndx = i + 1;
if (a[i] == null)
{
//Console.WriteLine("bind: {0} null", i);
stmt.bind_null(ndx);
}
else
{
Type t = a[i].GetType();
//Console.WriteLine("bind: {0} {1} -- {2}", i, t, a[i]);
if (typeof(String) == t)
{
stmt.bind_text(ndx, (string)a[i]);
}
else if (
(typeof(Int32) == t) ||
(typeof(Boolean) == t) ||
(typeof(Byte) == t) ||
(typeof(UInt16) == t) ||
(typeof(Int16) == t) ||
(typeof(sbyte) == t) ||
(typeof(Int64) == t) ||
(typeof(UInt32) == t)
)
{
stmt.bind_int64(ndx, (long)(Convert.ChangeType(a[i], typeof(long), null)));
}
else if (
(typeof(double) == t) ||
(typeof(float) == t) ||
(typeof(decimal) == t)
)
{
stmt.bind_double(ndx, (double)(Convert.ChangeType(a[i], typeof(double), null)));
}
else if (typeof(DateTime) == t)
{
DateTime d = (DateTime)a[i];
DateTime origin = new DateTime(1970, 1, 1, 0, 0, 0, 0);
TimeSpan diff = d.ToUniversalTime() - origin;
stmt.bind_int64(ndx, (long)diff.TotalSeconds);
}
else if (typeof(byte[]) == t)
{
stmt.bind_blob(ndx, (byte[])a[i]);
}
else
{
throw new NotSupportedException("Invalid type conversion" + t);
}
}
}
}
