/// <summary>
/// Bind the parameter to an <see cref="ISQLiteValue"/>.
/// </summary>
/// <param name="This">The bind parameter.</param>
/// <param name="value">A <see cref="ISQLiteValue"/>.</param>
public static void Bind(this IBindParameter This, ISQLiteValue value)
{
Contract.Requires(This != null);
Contract.Requires(value != null);
switch (value.SQLiteType)
{
case SQLiteType.Blob:
if (value is ZeroBlob)
{
This.BindZeroBlob(value.Length);
}
else
{
This.Bind(value.ToBlob());
}
return;
case SQLiteType.Null:
This.BindNull();
return;
case SQLiteType.Text:
This.Bind(value.ToString());
return;
case SQLiteType.Float:
This.Bind(value.ToDouble());
return;
case SQLiteType.Integer:
This.Bind(value.ToInt64());
return;
}
}
public static void TryBind(this IStatement statement, int index, bool?value)
{
IBindParameter bindParam = statement.BindParameters[index];
if (value == null)
{
bindParam.BindNull();
}
else
{
bindParam.Bind(value.Value);
}
}
public static void TryBind(this IStatement statement, int index, string value)
{
IBindParameter bindParam = statement.BindParameters[index];
if (value == null)
{
bindParam.BindNull();
}
else
{
bindParam.Bind(value.AsSpan());
}
}
/// <summary>
/// Bind the parameter to a value based upon its runtime type.
/// </summary>
/// <param name="This">The bind parameter.</param>
/// <param name="obj">
/// An object that is either <see langword="null"/> or any numeric type, <see cref="string"/>,
/// byte[], <see cref="ISQLiteValue"/> or <see cref="Stream"/>.
/// </param>
/// <exception cref="ArgumentException">
/// If the <see cref="Type"/> of the value is not supported
/// -or-
/// A non-readable stream is provided as a value.
/// </exception>
public static void Bind(this IBindParameter This, object obj)
{
Contract.Requires(This != null);
// I miss F# pattern matching
if (obj == null)
{
This.BindNull();
return;
}
Type t = obj.GetType();
if (typeof(string) == t)
{
This.Bind((string)obj);
}
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))
{
This.Bind((long)Convert.ChangeType(obj, typeof(long)));
}
else if ((typeof(double) == t) || (typeof(float) == t) || (typeof(decimal) == t))
{
This.Bind((double)Convert.ChangeType(obj, typeof(double)));
}
else if (typeof(byte[]) == t)
{
This.Bind((byte[])obj);
}
else if (t.GetTypeInfo().ImplementedInterfaces.Contains(typeof(ISQLiteValue)))
{
This.Bind((ISQLiteValue)obj);
}
else if (obj is TimeSpan span)
{
This.Bind(span);
}
else if (obj is DateTime time)
{
This.Bind(time);
}
else if (obj is DateTimeOffset offset)
{
This.Bind(offset);
}
else if (obj is Guid guid)
{
This.Bind(guid);
}
else if (obj is Stream stream)
{
This.Bind(stream);
}
else if (obj is Uri uri)
{
This.Bind(uri);
}
else
{
ThrowHelper.ThrowArgumentException($"Invalid type conversion {t}");
}
}
public static void TryBindNull(this IStatement statement, int index)
{
IBindParameter bindParam = statement.BindParameters[index];
bindParam.BindNull();
}
