public string GetValue(Expression expression)
{
var exp = expression as MethodCallExpression;
object value = null;
try
{
value = ExpressionTool.DynamicInvoke(exp.Arguments[0]);
}
catch
{
Check.Exception(true, ErrorMessage.WhereIFCheck, exp.Arguments[0].ToString());
}
var isWhere = Convert.ToBoolean(value);
if (!Convert.ToBoolean(isWhere))
{
return("WHERE 1=1 ");
}
var argExp = exp.Arguments[1];
var result = "WHERE " + SubTools.GetMethodValue(Context, argExp, ResolveExpressType.WhereMultiple);;
var selfParameterName = Context.GetTranslationColumnName((argExp as LambdaExpression).Parameters.First().Name) + UtilConstants.Dot;
result = result.Replace(selfParameterName, SubTools.GetSubReplace(this.Context));
return(result);
}
public string GetValue(Expression expression)
{
var exp = expression as MethodCallExpression;
var argExp = exp.Arguments[0];
var result = "ORDER BY " + SubTools.GetMethodValue(this.Context, argExp, ResolveExpressType.FieldSingle) + " DESC";
var selfParameterName = this.Context.GetTranslationColumnName((argExp as LambdaExpression).Parameters.First().Name) + UtilConstants.Dot;
result = result.Replace(selfParameterName, string.Empty);
return(result);
}
private List <string> GetSubItems()
{
var isubList = this.allMethods.Select(exp =>
{
var methodName = exp.Method.Name;
var items = SubTools.SubItems(this.context);
var item = items.First(s => s.Name == methodName);
if (item is SubWhere && hasWhere == false)
{
hasWhere = true;
}
else if (item is SubWhere)
{
item = items.First(s => s is SubAnd);
}
if (item is SubWhereIF && hasWhere == false)
{
hasWhere = true;
}
else if (item is SubWhereIF)
{
item = items.First(s => s is SubAndIF);
}
item.Context = this.context;
item.Expression = exp;
return(item);
}).ToList();
isubList.Insert(0, new SubBegin());
if (isubList.Any(it => it is SubSelect))
{
isubList.Add(new SubTop()
{
Context = this.context
});
}
if (isubList.Any(it => it is SubAny || it is SubNotAny))
{
isubList.Add(new SubLeftBracket());
isubList.Add(new SubRightBracket());
isubList.Add(new SubSelectDefault());
}
isubList = isubList.OrderBy(it => it.Sort).ToList();
var isHasWhere = isubList.Where(it => it is SubWhere).Any();
List <string> result = isubList.Select(it =>
{
it.HasWhere = isHasWhere;
return(it.GetValue(it.Expression));
}).ToList();
return(result);
}
public string GetValue(Expression expression = null)
{
var exp = expression as MethodCallExpression;
var entityType = (exp.Arguments[0] as LambdaExpression).Parameters[0].Type;
if (this.Context.InitMappingInfo != null)
{
this.Context.InitMappingInfo(entityType);
this.Context.RefreshMapping();
}
return(SubTools.GetMethodValue(this.Context, exp.Arguments[0], ResolveExpressType.FieldSingle));
}
public string GetValue(Expression expression)
{
if (this.Context is OracleExpressionContext)
{
throw new Exception("Oracle Subquery can't OrderBy");
}
var exp = expression as MethodCallExpression;
var argExp = exp.Arguments[0];
var result = "ORDER BY " + SubTools.GetMethodValue(this.Context, argExp, ResolveExpressType.FieldSingle);
var selfParameterName = this.Context.GetTranslationColumnName((argExp as LambdaExpression).Parameters.First().Name) + UtilConstants.Dot;
result = result.Replace(selfParameterName, SubTools.GetSubReplace(this.Context));
return(result);
}
public string GetValue(Expression expression = null)
{
var exp = expression as MethodCallExpression;
var argExp = exp.Arguments[0];
var parametres = (argExp as LambdaExpression).Parameters;
if ((argExp as LambdaExpression).Body is UnaryExpression)
{
argExp = ((argExp as LambdaExpression).Body as UnaryExpression).Operand;
}
var result = "SUM(" + SubTools.GetMethodValue(Context, argExp, ResolveExpressType.WhereMultiple) + ")";
var selfParameterName = Context.GetTranslationColumnName(parametres.First().Name) + UtilConstants.Dot;
result = result.Replace(selfParameterName, SubTools.GetSubReplace(this.Context));
return(result);
}
public string GetSql()
{
allMethods.Reverse();
List <KeyValuePair <string, string> > sqls = new List <KeyValuePair <string, string> >();
foreach (var methodExp in allMethods)
{
var isFirst = allMethods.First() == methodExp;
var isLast = allMethods.Last() == methodExp;
var sql = SubTools.GetMethodValue(this.context, methodExp.Arguments[0], this.context.IsSingle?ResolveExpressType.WhereSingle:ResolveExpressType.WhereMultiple);
sqls.Add(new KeyValuePair <string, string>(methodExp.Method.Name, sql));
}
var result = this.context.DbMehtods.CaseWhen(sqls);
return(result);
}
public string GetValue(Expression expression)
{
var exp = expression as MethodCallExpression;
var argExp = exp.Arguments[0];
var type = ResolveExpressType.FieldSingle;
if ((argExp as LambdaExpression).Body is NewExpression)
{
type = ResolveExpressType.ArraySingle;
}
var result = "GROUP BY " + SubTools.GetMethodValue(this.Context, argExp, type);
result = result.TrimEnd(',');
var selfParameterName = this.Context.GetTranslationColumnName((argExp as LambdaExpression).Parameters.First().Name) + UtilConstants.Dot;
result = result.Replace(selfParameterName, SubTools.GetSubReplace(this.Context));
return(result);
}
public string GetValue(Expression expression)
{
var exp = expression as MethodCallExpression;
var argExp = exp.Arguments[0];
var result = "WHERE " + SubTools.GetMethodValue(Context, argExp, ResolveExpressType.WhereMultiple);
var regex = @"^WHERE (\@Const\d+) $";
if (this.Context is OracleExpressionContext)
{
regex = @"^WHERE (\:Const\d+) $";
}
if (Regex.IsMatch(result, regex))
{
result = "WHERE " + this.Context.Parameters.First(it => it.ParameterName == Regex.Match(result, regex).Groups[1].Value).Value;
return(result);
}
var selfParameterName = Context.GetTranslationColumnName((argExp as LambdaExpression).Parameters.First().Name) + UtilConstants.Dot;
result = result.Replace(selfParameterName, SubTools.GetSubReplace(this.Context));
return(result);
}
public string GetValue(Expression expression = null)
{
var exp = expression as MethodCallExpression;
return("AVG(" + SubTools.GetMethodValue(this.Context, exp.Arguments[0], ResolveExpressType.FieldSingle) + ")");
}
