public IUnaryParameterQueryBuilder <TRecord> WhereParameterised(string fieldName, UnarySqlOperand operand, Parameter parameter)
{
var uniqueParameter = new UniqueParameter(uniqueParameterNameGenerator, parameter);
selectBuilder.AddWhere(new UnaryWhereParameter(fieldName, operand, uniqueParameter));
return(new UnaryParameterQueryBuilder <TRecord>(Parameter(uniqueParameter), uniqueParameter));
}
public List <TRecord> ToList(int skip, int take)
{
const string rowNumberColumnName = "RowNum";
var minRowParameter = new UniqueParameter(uniqueParameterNameGenerator, new Parameter("_minrow"));
var maxRowParameter = new UniqueParameter(uniqueParameterNameGenerator, new Parameter("_maxrow"));
var clonedSelectBuilder = selectBuilder.Clone();
clonedSelectBuilder.AddDefaultColumnSelection();
clonedSelectBuilder.AddRowNumberColumn(rowNumberColumnName, new List <Column>());
var subqueryBuilder = CreateSubqueryBuilder(clonedSelectBuilder);
subqueryBuilder.AddWhere(new UnaryWhereParameter(rowNumberColumnName, UnarySqlOperand.GreaterThanOrEqual, minRowParameter));
subqueryBuilder.AddWhere(new UnaryWhereParameter(rowNumberColumnName, UnarySqlOperand.LessThanOrEqual, maxRowParameter));
subqueryBuilder.AddOrder("RowNum", false);
var parmeterValues = new CommandParameterValues(paramValues)
{
{ minRowParameter.ParameterName, skip + 1 },
{ maxRowParameter.ParameterName, take + skip }
};
return(transaction.ExecuteReader <TRecord>(subqueryBuilder.GenerateSelect().GenerateSql(), parmeterValues).ToList());
}
public bool Any()
{
const int trueValue = 1;
const int falseValue = 0;
var trueParameter = new UniqueParameter(uniqueParameterNameGenerator, new Parameter("true"));
var falseParameter = new UniqueParameter(uniqueParameterNameGenerator, new Parameter("false"));
var result = transaction.ExecuteScalar <int>(CreateQuery().GenerateSql(), CreateParameterValues());
return(result != falseValue);
CommandParameterValues CreateParameterValues()
{
return(new CommandParameterValues(paramValues)
{
{ trueParameter.ParameterName, trueValue },
{ falseParameter.ParameterName, falseValue }
});
}
IExpression CreateQuery()
{
var clonedSelectBuilder = selectBuilder.Clone();
clonedSelectBuilder.RemoveOrderBys();
return(new IfExpression(new ExistsExpression(clonedSelectBuilder.GenerateSelectWithoutDefaultOrderBy()),
new SelectConstant(trueParameter),
new SelectConstant(falseParameter)));
}
}
public IBinaryParametersQueryBuilder <TRecord> WhereParameterised(string fieldName, BinarySqlOperand operand,
Parameter startValueParameter, Parameter endValueParameter)
{
var uniqueStartParameter = new UniqueParameter(uniqueParameterNameGenerator, startValueParameter);
var uniqueEndParameter = new UniqueParameter(uniqueParameterNameGenerator, endValueParameter);
selectBuilder.AddWhere(new BinaryWhereParameter(fieldName, operand, uniqueStartParameter, uniqueEndParameter));
return(new BinaryParametersQueryBuilder <TRecord>(Parameter(uniqueStartParameter).Parameter(uniqueEndParameter), uniqueStartParameter, uniqueEndParameter));
}
public IUnaryParameterDeleteQueryBuilder <TRecord> WhereParameterised(string fieldName, UnarySqlOperand operand,
Parameter parameter)
{
var uniqueParameter = new UniqueParameter(uniqueParameterNameGenerator, parameter);
return(new UnaryParameterDeleteQueryBuilder <TRecord>(
AddWhereClause(new UnaryWhereClause(new WhereFieldReference(fieldName), operand, uniqueParameter.ParameterName)),
uniqueParameter));
}
public IBinaryParametersDeleteQueryBuilder <TRecord> WhereParameterised(string fieldName,
BinarySqlOperand operand, Parameter startValueParameter,
Parameter endValueParameter)
{
var uniqueStartParameter = new UniqueParameter(uniqueParameterNameGenerator, startValueParameter);
var uniqueEndParameter = new UniqueParameter(uniqueParameterNameGenerator, endValueParameter);
return(new BinaryParametersDeleteQueryBuilder <TRecord>(
AddWhereClause(new BinaryWhereClause(new WhereFieldReference(fieldName), operand, uniqueStartParameter.ParameterName, uniqueEndParameter.ParameterName)),
uniqueStartParameter,
uniqueEndParameter));
}
public UnaryParameterDeleteQueryBuilder(IDeleteQueryBuilder <TRecord> deleteQueryBuilder, UniqueParameter parameter)
{
this.deleteQueryBuilder = deleteQueryBuilder;
this.parameter = parameter;
}
