/// <summary>
/// Perform the bind operation for an individual parameter
/// </summary>
/// <param name="index">The index of the parameter to bind</param>
/// <param name="param">The parameter we're binding</param>
private void BindParameter(int index, SqliteParameter param)
{
if (param == null)
{
throw new SqliteException((int)SqliteErrorCode.Error, "Insufficient parameters supplied to the command");
}
object obj = param.Value;
DbType objType = param.DbType;
if (obj == DBNull.Value || obj == null)
{
_sql.Bind_Null(this, index);
return;
}
if (objType == DbType.Object)
{
objType = SqliteConvert.TypeToDbType(obj.GetType());
}
switch (objType)
{
case DbType.Date:
case DbType.Time:
case DbType.DateTime:
_sql.Bind_DateTime(this, index, Convert.ToDateTime(obj, CultureInfo.CurrentCulture));
break;
case DbType.Int64:
case DbType.UInt64:
case DbType.UInt32:
_sql.Bind_Int64(this, index, Convert.ToInt64(obj, CultureInfo.CurrentCulture));
break;
case DbType.Boolean:
case DbType.Int16:
case DbType.Int32:
case DbType.UInt16:
case DbType.SByte:
case DbType.Byte:
_sql.Bind_Int32(this, index, Convert.ToInt32(obj, CultureInfo.CurrentCulture));
break;
case DbType.Single:
case DbType.Double:
case DbType.Currency:
//case DbType.Decimal: // Dont store decimal as double ... loses precision
_sql.Bind_Double(this, index, Convert.ToDouble(obj, CultureInfo.CurrentCulture));
break;
case DbType.Binary:
_sql.Bind_Blob(this, index, (byte[])obj);
break;
case DbType.Guid:
if (_command.Connection._binaryGuid == true)
{
_sql.Bind_Blob(this, index, ((Guid)obj).ToByteArray());
}
else
{
_sql.Bind_Text(this, index, obj.ToString());
}
break;
case DbType.Decimal: // Dont store decimal as double ... loses precision
_sql.Bind_Text(this, index, Convert.ToDecimal(obj, CultureInfo.CurrentCulture).ToString(CultureInfo.InvariantCulture));
break;
default:
_sql.Bind_Text(this, index, obj.ToString());
break;
}
}
/// <summary>
/// Adds an array of parameters to the collection
/// </summary>
/// <param name="values">The array of parameters to add</param>
public void AddRange(SqliteParameter[] values) {
int x = values.Length;
for (int n = 0; n < x; n++)
Add(values[n]);
}
/// <summary>
/// Adds a parameter to the collection
/// </summary>
/// <param name="parameterName">The parameter name</param>
/// <param name="parameterType">The data type</param>
/// <param name="parameterSize">The size of the value</param>
/// <param name="sourceColumn">The source column</param>
/// <returns>A SqliteParameter object</returns>
public SqliteParameter Add(string parameterName, DbType parameterType, int parameterSize, string sourceColumn) {
SqliteParameter param = new SqliteParameter(parameterName, parameterType, parameterSize, sourceColumn);
Add(param);
return param;
}
/// <summary>
/// Adds a parameter to the collection
/// </summary>
/// <param name="parameter">The parameter to add</param>
/// <returns>A zero-based index of where the parameter is located in the array</returns>
public int Add(SqliteParameter parameter) {
int n = -1;
if (String.IsNullOrEmpty(parameter.ParameterName) == false) {
n = IndexOf(parameter.ParameterName);
}
if (n == -1) {
n = _parameterList.Count;
_parameterList.Add((SqliteParameter)parameter);
}
SetParameter(n, parameter);
return n;
}
/// <summary>
/// Adds a named/unnamed parameter and its value to the parameter collection.
/// </summary>
/// <param name="parameterName">Name of the parameter, or null to indicate an unnamed parameter</param>
/// <param name="value">The initial value of the parameter</param>
/// <returns>Returns the SqliteParameter object created during the call.</returns>
public SqliteParameter AddWithValue(string parameterName, object value) {
SqliteParameter param = new SqliteParameter(parameterName, value);
Add(param);
return param;
}
/// <summary>
/// Adds a parameter to the collection
/// </summary>
/// <param name="parameterName">The parameter name</param>
/// <param name="parameterType">The data type</param>
/// <returns>A SqliteParameter object</returns>
public SqliteParameter Add(string parameterName, DbType parameterType) {
SqliteParameter param = new SqliteParameter(parameterName, parameterType);
Add(param);
return param;
}
/// <summary>
/// Clones a parameter
/// </summary>
/// <returns>A new, unassociated SqliteParameter</returns>
public object Clone() {
SqliteParameter newparam = new SqliteParameter(this);
return newparam;
}
private SqliteParameter(SqliteParameter source)
: this(source.ParameterName, (DbType)source._dbType, 0, source.Direction, source.IsNullable, 0, 0, source.SourceColumn, source.SourceVersion, source.Value) {
_nullMapping = source._nullMapping;
}
/// <summary>
/// Perform the bind operation for an individual parameter
/// </summary>
/// <param name="index">The index of the parameter to bind</param>
/// <param name="param">The parameter we're binding</param>
private void BindParameter(int index, SqliteParameter param) {
if (param == null)
throw new SqliteException((int)SqliteErrorCode.Error, "Insufficient parameters supplied to the command");
object obj = param.Value;
DbType objType = param.DbType;
if (obj == DBNull.Value || obj == null) {
_sql.Bind_Null(this, index);
return;
}
if (objType == DbType.Object)
objType = SqliteConvert.TypeToDbType(obj.GetType());
switch (objType) {
case DbType.Date:
case DbType.Time:
case DbType.DateTime:
_sql.Bind_DateTime(this, index, Convert.ToDateTime(obj, CultureInfo.CurrentCulture));
break;
case DbType.Int64:
case DbType.UInt64:
case DbType.UInt32:
_sql.Bind_Int64(this, index, Convert.ToInt64(obj, CultureInfo.CurrentCulture));
break;
case DbType.Boolean:
case DbType.Int16:
case DbType.Int32:
case DbType.UInt16:
case DbType.SByte:
case DbType.Byte:
_sql.Bind_Int32(this, index, Convert.ToInt32(obj, CultureInfo.CurrentCulture));
break;
case DbType.Single:
case DbType.Double:
case DbType.Currency:
//case DbType.Decimal: // Dont store decimal as double ... loses precision
_sql.Bind_Double(this, index, Convert.ToDouble(obj, CultureInfo.CurrentCulture));
break;
case DbType.Binary:
_sql.Bind_Blob(this, index, (byte[])obj);
break;
case DbType.Guid:
if (_command.Connection._binaryGuid == true)
_sql.Bind_Blob(this, index, ((Guid)obj).ToByteArray());
else
_sql.Bind_Text(this, index, obj.ToString());
break;
case DbType.Decimal: // Dont store decimal as double ... loses precision
_sql.Bind_Text(this, index, Convert.ToDecimal(obj, CultureInfo.CurrentCulture).ToString(CultureInfo.InvariantCulture));
break;
default:
_sql.Bind_Text(this, index, obj.ToString());
break;
}
}
/// <summary>
/// Called by SqliteParameterCollection, this function determines if the specified parameter name belongs to
/// this statement, and if so, keeps a reference to the parameter so it can be bound later.
/// </summary>
/// <param name="s">The parameter name to map</param>
/// <param name="p">The parameter to assign it</param>
internal bool MapParameter(string s, SqliteParameter p) {
if (_paramNames == null) return false;
int startAt = 0;
if (s.Length > 0) {
if (":$@;".IndexOf(s[0]) == -1)
startAt = 1;
}
int x = _paramNames.Length;
for (int n = 0; n < x; n++) {
if (String.Compare(_paramNames[n], startAt, s, 0, Math.Max(_paramNames[n].Length - startAt, s.Length), StringComparison.OrdinalIgnoreCase) == 0) {
_paramValues[n] = p;
return true;
}
}
return false;
}
