public static IDbCommand ToCmd(this string sql, DbType type, object value, ParameterDirection direction = ParameterDirection.Input)
{
IDbCommand cmd = ToCmd(sql);
var name = sql.Split(' ').FirstOrDefault(param => param.StartsWith("@"));
cmd.AddParams(name.Trim(), type, value, direction);
return(cmd);
}
public static IDbCommand AddParams(this IDbCommand cmd, string name, DbType type, object value, ParameterDirection direction = ParameterDirection.Input)
{
cmd.AddParams(name.ToParam(type, value, direction));
return(cmd);
}
public void BuildUpdate(IDbCommand command,
object data,
string tableName,
IFieldInfoCollection fields,
string whereExpression = null,
OnConflictOption option = OnConflictOption.Default,
object keyValue = null,
object extraPrams = null)
{
if (command is null)
{
throw new ArgumentNullException(nameof(command));
}
if (data is null)
{
throw new ArgumentNullException(nameof(data));
}
if (fields is null)
{
throw new ArgumentNullException(nameof(fields));
}
if (string.IsNullOrEmpty(tableName))
{
throw new ArgumentException("message", nameof(tableName));
}
var pkField = fields.PrimaryKeyField ?? throw new InvalidOperationException($"Primary Key field required for Update command");
if (keyValue is null)
{
keyValue = pkField.GetFieldValue(data);
}
if (keyValue is null)
{
throw new InvalidOperationException($"{pkField.Property.Name} should not be null");
}
var columnNames = new List <string>();
var columnExpressions = new List <string>();
foreach (var field in fields)
{
object value = field.GetFieldValueOrDefault(data) ?? DBNull.Value;
var param = MakeParameter(command, field, value);
command.Parameters.Add(param);
if ((field.PersistanceFlags & PersistanceFlags.OnUpdate) == PersistanceFlags.OnUpdate)
{
columnNames.Add(field.Name);
columnExpressions.Add(param.ParameterName);
}
}
if (extraPrams != null)
{
command.AddParams(extraPrams);
}
whereExpression = whereExpression ?? pkField.Name + " = " + GetParameterName(pkField);
var where = new WhereClause(whereExpression);
var expression = new SqlUpdateCommand()
{
TableName = tableName,
ColumnNames = columnNames,
ValueExpressions = columnExpressions,
ConflictOption = option,
Where = where
};
command.CommandText = expression.ToString();
}
