public override string BuildUpdateStatement(string tableName,
ICollection <string> fields,
string primaryKeyField)
{
// updatable fields:
StringBuilder builder = new StringBuilder();
var updatableFields = this.GetFieldAndParameterBasedFieldCollection(fields);
foreach (var updatableField in updatableFields)
{
if (updatableField.Key == primaryKeyField)
{
continue;
}
builder.Append(string.Format("{0} = {1}{2}",
updatableField.Key,
updatableField.Value,
FIELD_DELIMITER));
}
var forUpdate = builder.ToString().TrimEnd(FIELD_DELIMITER.ToCharArray());
string update = string.Format("UPDATE [{0}] SET {1} {2}",
tableName,
forUpdate,
this.BuildWhereClauseById(tableName,
primaryKeyField,
string.Concat(FIELD_PARAMETER_DELIMITER, primaryKeyField)));
return(update);
}
private string GetCommaSeparatedFieldNames(ICollection <string> fields)
{
StringBuilder builder = new StringBuilder();
new List <string>(fields).ForEach(field => builder.Append(string.Concat(field, FIELD_DELIMITER)));
string fieldList = builder.ToString().TrimEnd(FIELD_DELIMITER.ToCharArray());
return(fieldList);
}