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ExpressionFormatter.cs
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51 lines (43 loc) · 1.82 KB
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using System.Collections;
using System.Linq;
using System.Text;
using Simple.Data.Ado.Schema;
namespace Simple.Data.Ado
{
class ExpressionFormatter : ExpressionFormatterBase
{
private readonly ICommandBuilder _commandBuilder;
private readonly DatabaseSchema _schema;
private readonly SimpleReferenceFormatter _simpleReferenceFormatter;
public ExpressionFormatter(ICommandBuilder commandBuilder, DatabaseSchema schema)
{
_commandBuilder = commandBuilder;
_schema = schema;
_simpleReferenceFormatter = new SimpleReferenceFormatter(_schema, _commandBuilder);
}
protected override string FormatObject(object value, object otherOperand)
{
var objectReference = value as SimpleReference;
if (!ReferenceEquals(objectReference, null))
return _simpleReferenceFormatter.FormatColumnClause(objectReference);
return _commandBuilder.AddParameter(value, GetColumn(otherOperand as ObjectReference)).Name;
}
protected override string FormatRange(IRange range, object otherOperand)
{
return _commandBuilder.AddParameter(range, GetColumn(otherOperand as ObjectReference)).Name;
}
protected override string FormatList(IEnumerable list, object otherOperand)
{
return _commandBuilder.AddParameter(list, GetColumn(otherOperand as ObjectReference)).Name;
}
private Column GetColumn(ObjectReference reference)
{
if (ReferenceEquals(reference, null))
{
return null;
}
var table = _schema.FindTable(reference.GetOwner().ToString());
return table.FindColumn(reference.GetName());
}
}
}