/// <summary>
/// Create a new Expression phrase.
/// </summary>
/// <param name="expr">SQL Expression.</param>
public APSqlExprPhrase(APSqlExpr expr)
{
if (Object.Equals(expr, null))
throw new ArgumentNullException("expr");
_expr = expr;
}
/// <summary>
/// Create a new condition phrase.
/// </summary>
/// <param name="expr">SQL Expression.</param>
/// <param name="conditionOperator">Condition operator.</param>
/// <param name="value">Value.</param>
/// <param name="paramName">Parameter name.</param>
public APSqlConditionPhrase(APSqlOperateExpr expr, APSqlConditionOperator conditionOperator, object value, string paramName)
{
if (Object.Equals(expr, null))
{
throw new ArgumentNullException("columnDef");
}
if (conditionOperator == APSqlConditionOperator.Exists || conditionOperator == APSqlConditionOperator.NotExists)
{
throw new ArgumentException(APResource.APDB_OperatorExists, "conditionOperator");
}
_expr = expr;
_paramName = paramName;
if (String.IsNullOrEmpty(paramName))
{
_paramName = expr.ParamName;
}
if (value is String)
{
value = APSqlExpr.TryFitStringToRawExpr((string)value);
}
_value = value;
_conditionOperator = conditionOperator;
}
/// <summary>
/// Create a new 'SELECT' phrase.
/// </summary>
/// <param name="expr">SQL 'SELECT' Expression.</param>
/// <param name="alias">Alias.</param>
public APSqlSelectPhrase(APSqlOperateExpr expr, string alias)
{
if (Object.Equals(expr, null))
throw new ArgumentNullException("expr");
_expr = expr;
_alias = alias;
}
/// <summary>
/// Create a new 'SELECT' phrase.
/// </summary>
/// <param name="expr">SQL 'SELECT' Expression.</param>
public APSqlSelectPhrase(APSqlExpr expr)
{
if (Object.Equals(expr, null))
{
throw new ArgumentNullException("expr");
}
_expr = expr;
}
/// <summary>
/// Create a new 'SELECT' phrase.
/// </summary>
/// <param name="expr">SQL 'SELECT' Expression.</param>
/// <param name="alias">Alias.</param>
public APSqlSelectPhrase(APSqlOperateExpr expr, string alias)
{
if (Object.Equals(expr, null))
{
throw new ArgumentNullException("expr");
}
_expr = expr;
_alias = alias;
}
private void WriteSelectExpression(ParserWriter writer, APSqlExpr selectExpr)
{
if (selectExpr is APSqlAggregationExpr)
{
APSqlAggregationExpr expr = selectExpr as APSqlAggregationExpr;
writer.Write(expr.AggregationType.ToString());
writer.Write("(");
if (expr.SelectMode == APSqlSelectMode.DISTINCT)
{
writer.Write("DISTINCT");
}
if (expr.RowSelectExpr is APSqlAsteriskExpr)
{
writer.Write("*");
}
else
{
WriteSelectExpression(writer, expr.RowSelectExpr);
}
writer.Write(")");
}
else if (selectExpr is APSqlDateGroupExpr)
{
APSqlDateGroupExpr expr = selectExpr as APSqlDateGroupExpr;
string datepart = "";
switch (expr.DateGroupMode)
{
case APSqlDateGroupMode.Day: datepart = "yyyy-mm-dd"; break;
case APSqlDateGroupMode.Week: datepart = "yyyy-IW"; break;
case APSqlDateGroupMode.Month: datepart = "yyyy-mm"; break;
case APSqlDateGroupMode.Quarter: datepart = "yyyy-Q"; break;
case APSqlDateGroupMode.Year: datepart = "yyyy"; break;
}
writer.Write("to_char(");
WriteSelectExpression(writer, expr.RawExpr);
writer.Write(", '{0}')", datepart);
}
else
{
writer.Write(selectExpr.SelectExpr);
}
}
private void WriteSelectExpression(ParserWriter writer, APSqlExpr selectExpr)
{
if (selectExpr is APSqlAggregationExpr)
{
APSqlAggregationExpr expr = selectExpr as APSqlAggregationExpr;
writer.Write(expr.AggregationType.ToString());
writer.Write("(");
if (expr.SelectMode == APSqlSelectMode.DISTINCT)
{
writer.Write("DISTINCT");
}
if (expr.RowSelectExpr is APSqlAsteriskExpr)
{
writer.Write("*");
}
else
{
WriteSelectExpression(writer, expr.RowSelectExpr);
}
writer.Write(")");
}
else if (selectExpr is APSqlDateGroupExpr)
{
APSqlDateGroupExpr expr = selectExpr as APSqlDateGroupExpr;
string datepart = "";
switch (expr.DateGroupMode)
{
case APSqlDateGroupMode.Day: datepart = "dd"; break;
case APSqlDateGroupMode.Week: datepart = "wk"; break;
case APSqlDateGroupMode.Month: datepart = "mm"; break;
case APSqlDateGroupMode.Quarter: datepart = "qq"; break;
case APSqlDateGroupMode.Year: datepart = "yy"; break;
}
writer.Write(String.Format("DATEADD( {0}, DATEDIFF( {0}, 0,", datepart));
WriteSelectExpression(writer, expr.RawExpr);
writer.Write("), 0 )");
}
else
{
writer.Write(selectExpr.SelectExpr);
}
}
/// <summary>
/// Create a new 'SET' phrase.
/// </summary>
/// <param name="assignmentExpr">SQL assignment Expression.</param>
/// <param name="value">Value.</param>
/// <param name="paramName">Parameter name.</param>
public APSqlSetPhrase(APSqlColumnExpr assignmentExpr, object value, string paramName)
{
if (Object.Equals(assignmentExpr, null))
{
throw new ArgumentNullException("assignmentExpr");
}
if (value is String)
{
value = APSqlExpr.TryFitStringToRawExpr((string)value);
}
_assignmentExpr = assignmentExpr;
_paramName = String.IsNullOrEmpty(paramName) ? assignmentExpr.ParamName : paramName;
_value = value;
}
private void WriteSelectExpression(ParserWriter writer, APSqlExpr selectExpr)
{
if (selectExpr is APSqlAggregationExpr)
{
APSqlAggregationExpr expr = selectExpr as APSqlAggregationExpr;
writer.Write(expr.AggregationType.ToString());
writer.Write("(");
if (expr.SelectMode == APSqlSelectMode.DISTINCT)
writer.Write("DISTINCT");
if (expr.RowSelectExpr is APSqlAsteriskExpr)
{
writer.Write("*");
}
else
{
WriteSelectExpression(writer, expr.RowSelectExpr);
}
writer.Write(")");
}
else if (selectExpr is APSqlDateGroupExpr)
{
APSqlDateGroupExpr expr = selectExpr as APSqlDateGroupExpr;
string datepart = "";
switch (expr.DateGroupMode)
{
case APSqlDateGroupMode.Day : datepart = "dd"; break;
case APSqlDateGroupMode.Week: datepart = "wk"; break;
case APSqlDateGroupMode.Month: datepart = "mm"; break;
case APSqlDateGroupMode.Quarter: datepart = "qq"; break;
case APSqlDateGroupMode.Year: datepart = "yy"; break;
}
writer.Write(String.Format("DATEADD( {0}, DATEDIFF( {0}, 0,", datepart));
WriteSelectExpression(writer, expr.RawExpr);
writer.Write("), 0 )");
}
else
{
writer.Write(selectExpr.SelectExpr);
}
}
/// <summary>
/// Create a new APSqlDateGroupExpr.
/// </summary>
/// <param name="rowSelectExpr">Row SQL 'SELECT' Expression.</param>
/// <param name="dateGroupMode">Date group mode.</param>
public APSqlDateGroupExpr(APSqlExpr rowSelectExpr, APSqlDateGroupMode dateGroupMode)
{
_rawExpr = rowSelectExpr;
_dateGroupMode = dateGroupMode;
}
/// <summary>
/// PrimeryKeyColumnDef extensions.
/// </summary>
/// <param name="command">The command.</param>
/// <param name="primaryExpr">The Primary Expression.</param>
/// <returns>The command.</returns>
public static APSqlSelectCommand primary(this APSqlSelectCommand command, APSqlExpr primaryExpr)
{
command.PrimeryKeyExpr = primaryExpr;
return(command);
}
/// <summary>
/// Create a new APSqlAggregationExpr.
/// </summary>
/// <param name="rowSelectExpr">Row SQL 'SELECT' Expression.</param>
/// <param name="aggregationType">Aggregation type.</param>
/// <param name="selectMode">Select mode.</param>
public APSqlAggregationExpr(APSqlExpr rowSelectExpr, APSqlAggregationType aggregationType, APSqlSelectMode selectMode)
{
_rowSelectExpr = rowSelectExpr;
_aggregationType = aggregationType;
_selectMode = selectMode;
}
/// <summary>
/// Create a new APSqlAggregationExpr.
/// </summary>
/// <param name="rowSelectExpr">Row SQL 'SELECT' Expression.</param>
/// <param name="aggregationType">Aggregation type.</param>
public APSqlAggregationExpr(APSqlExpr rowSelectExpr, APSqlAggregationType aggregationType)
: this(rowSelectExpr, aggregationType, APSqlSelectMode.ALL)
{
}
/// <summary>
/// Create a new APSqlAggregationExpr.
/// </summary>
/// <param name="rowSelectExpr">Row SQL 'SELECT' Expression.</param>
/// <param name="aggregationType">Aggregation type.</param>
/// <param name="selectMode">Select mode.</param>
public APSqlAggregationExpr(APSqlExpr rowSelectExpr, APSqlAggregationType aggregationType, APSqlSelectMode selectMode)
{
_rowSelectExpr = rowSelectExpr;
_aggregationType = aggregationType;
_selectMode = selectMode;
}
/// <summary>
/// Create a new APSqlAggregationExpr.
/// </summary>
/// <param name="rowSelectExpr">Row SQL 'SELECT' Expression.</param>
/// <param name="aggregationType">Aggregation type.</param>
public APSqlAggregationExpr(APSqlExpr rowSelectExpr, APSqlAggregationType aggregationType)
: this(rowSelectExpr, aggregationType, APSqlSelectMode.ALL)
{
}
/// <summary>
/// Create a new APSqlDateGroupExpr.
/// </summary>
/// <param name="rowSelectExpr">Row SQL 'SELECT' Expression.</param>
/// <param name="dateGroupMode">Date group mode.</param>
public APSqlDateGroupExpr(APSqlExpr rowSelectExpr, APSqlDateGroupMode dateGroupMode)
{
_rawExpr = rowSelectExpr;
_dateGroupMode = dateGroupMode;
}
private void WriteSelectExpression(ParserWriter writer, APSqlExpr selectExpr)
{
if (selectExpr is APSqlAggregationExpr)
{
APSqlAggregationExpr expr = selectExpr as APSqlAggregationExpr;
writer.Write(expr.AggregationType.ToString());
writer.Write("(");
if (expr.SelectMode == APSqlSelectMode.DISTINCT)
writer.Write("DISTINCT");
if (expr.RowSelectExpr is APSqlAsteriskExpr)
{
writer.Write("*");
}
else
{
WriteSelectExpression(writer, expr.RowSelectExpr);
}
writer.Write(")");
}
else if (selectExpr is APSqlDateGroupExpr)
{
APSqlDateGroupExpr expr = selectExpr as APSqlDateGroupExpr;
string datepart = "";
switch (expr.DateGroupMode)
{
case APSqlDateGroupMode.Day: datepart = "yyyy-mm-dd"; break;
case APSqlDateGroupMode.Week: datepart = "yyyy-IW"; break;
case APSqlDateGroupMode.Month: datepart = "yyyy-mm"; break;
case APSqlDateGroupMode.Quarter: datepart = "yyyy-Q"; break;
case APSqlDateGroupMode.Year: datepart = "yyyy"; break;
}
writer.Write("to_char(");
WriteSelectExpression(writer, expr.RawExpr);
writer.Write(", '{0}')", datepart);
}
else
{
writer.Write(selectExpr.SelectExpr);
}
}
