/// <summary>
/// Constructs a WHERE statements on this column for the given <paramref name="values"/>.
/// </summary>
/// <param name="context">The <see cref="IMansionContext"/>.</param>
/// <param name="commandContext">The <see cref="QueryCommandContext"/>.</param>
/// <param name="pair">The <see cref="TableColumnPair"/>.</param>
/// <param name="values">The values on which to construct the where statement.</param>
protected override void DoToWhereStatement(IMansionContext context, QueryCommandContext commandContext, TableColumnPair pair, IList<object> values)
{
// assemble the properties
var buffer = new StringBuilder();
foreach (var value in values)
buffer.AppendFormat("@{0},", commandContext.Command.AddParameter(value));
// append the query
commandContext.QueryBuilder.AppendWhere(" [{0}].[id] IN ( SELECT [{1}].[id] FROM [{1}] WHERE [{1}].[name] = '{2}' AND [{1}].[value] IN ({3}) )", commandContext.QueryBuilder.RootTableName, pair.Table.Name, PropertyName, buffer.Trim());
}
/// <summary>
/// Constructs a WHERE statements on this column for the given <paramref name="values"/>.
/// </summary>
/// <param name="context">The <see cref="IMansionContext"/>.</param>
/// <param name="commandContext">The <see cref="QueryCommandContext"/>.</param>
/// <param name="pair">The <see cref="TableColumnPair"/>.</param>
/// <param name="values">The values on which to construct the where statement.</param>
protected override void DoToWhereStatement(IMansionContext context, QueryCommandContext commandContext, TableColumnPair pair, IList<object> values)
{
// add the table to the query
commandContext.QueryBuilder.AddTable(context, pair.Table, commandContext.Command);
// check for single or multiple values
if (values.Count == 1)
commandContext.QueryBuilder.AppendWhere(" [{0}].[{1}] = @{2}", pair.Table.Name, pair.Column.ColumnName, commandContext.Command.AddParameter(values[0]));
else
{
// start the clause
var buffer = new StringBuilder();
buffer.AppendFormat("[{0}].[{1}] IN (", pair.Table.Name, pair.Column.ColumnName);
// loop through all the values
foreach (var value in values)
buffer.AppendFormat("@{0},", commandContext.Command.AddParameter(value));
// finish the clause
commandContext.QueryBuilder.AppendWhere("{0})", buffer.Trim());
}
}
/// <summary>
/// Constructs a WHERE statements on this column for the given <paramref name="values"/>.
/// </summary>
/// <param name="context">The <see cref="IMansionContext"/>.</param>
/// <param name="commandContext">The <see cref="QueryCommandContext"/>.</param>
/// <param name="values">The values on which to construct the where statement.</param>
/// <exception cref="ArgumentNullException">Thrown if one of the parameters is null.</exception>
public void ToWhereStatement(IMansionContext context, QueryCommandContext commandContext, IEnumerable<object> values)
{
// validate arguments
if (context == null)
throw new ArgumentNullException("context");
if (values == null)
throw new ArgumentNullException("values");
if (commandContext == null)
throw new ArgumentNullException("commandContext");
// check if there are any values
var valueArray = values.ToArray();
if (valueArray.Length == 0)
{
commandContext.QueryBuilder.AppendWhere("1 = 0");
return;
}
// get the table in which the column exists from the schema
var pair = commandContext.Schema.FindTableAndColumn(PropertyName);
// invoke template method
DoToWhereStatement(context, commandContext, pair, valueArray);
}
/// <summary>
/// Constructs a WHERE statements on this column for the given <paramref name="values"/>.
/// </summary>
/// <param name="context">The <see cref="IMansionContext"/>.</param>
/// <param name="commandContext">The <see cref="QueryCommandContext"/>.</param>
/// <param name="pair">The <see cref="TableColumnPair"/>.</param>
/// <param name="values">The values on which to construct the where statement.</param>
protected virtual void DoToWhereStatement(IMansionContext context, QueryCommandContext commandContext, TableColumnPair pair, IList<object> values)
{
throw new NotSupportedException(string.Format("Columns of type '{0}' do not support where mapping", GetType().Name));
}