コード例 #1
0
ファイル: SelectorAdapter.cs プロジェクト: dalyl/MicroBluer
        void CheckedChange(string path, bool isChecked)
        {
            if (IsSelectMany == false)
            {
                Selects.Clear();
                if (isChecked)
                {
                    Selects.Add(path);
                }
                return;
            }

            if (isChecked)
            {
                if (Selects.Contains(path))
                {
                    return;
                }
                Selects.Add(path);
            }
            else
            {
                if (Selects.Contains(path) == false)
                {
                    return;
                }
                Selects.Remove(path);
            }
        }
コード例 #2
0
        public string BuildSqlString(bool canUseOperators)
        {
            if (MainFrom == null)
            {
                throw new ApplicationException("From !?");
            }

            foreach (var qs in Simplifications)
            {
                if (qs.CanSimplify(this))
                {
                    return(qs.Simplify(this));
                }
            }

            var sb = new StringBuilder();

            sb.Append("SELECT ");

            var groupOperator = ResultOperators.FirstOrDefault(it => it is GroupResultOperator) as GroupResultOperator;

            if (groupOperator != null)
            {
                if (Selects.Count != 1)
                {
                    throw new FrameworkException("Select count can only be two when grouping!");
                }
                //TODO fix later... collect
                sb.AppendFormat(
                    "{0} AS \"Key\", ARRAY_AGG(\"{1}\") AS \"Values\"",
                    GetSqlExpression(groupOperator.KeySelector),
                    Selects[0].QuerySource.ItemName);
            }
            else
            {
                if (canUseOperators)
                {
                    var countOperator = ResultOperators.FirstOrDefault(it => it is CountResultOperator || it is LongCountResultOperator);
                    if (countOperator != null)
                    {
                        return(BuildCountQuery(countOperator));
                    }
                    if (ResultOperators.Any(it => it is AnyResultOperator))
                    {
                        return(BuildAnyQuery());
                    }
                    var sumOperator = ResultOperators.FirstOrDefault(it => it is SumResultOperator);
                    if (sumOperator != null)
                    {
                        if (Selects.Count > 1)
                        {
                            //TOOD hack to fix problem with select
                            Selects.Clear();
                            Selects.Add(new SelectSource {
                                Sql = GetSqlExpression(Selector), ItemType = Selector.Type
                            });
                        }
                        sb.AppendFormat("COALESCE(SUM({0}), 0)", Selects[0].Sql);
                        //TODO use actual type
                        if (Selects[0].ItemType == typeof(int) || Selects[0].ItemType == typeof(int?))
                        {
                            sb.Append("::int");
                        }
                        if (Selects[0].Name != null)
                        {
                            sb.AppendFormat(" AS \"{0}\"", Selects[0].Name);
                        }
                        sb.AppendLine();
                        sb.Append(GetFromPart());
                        sb.Append(GetWherePart());
                        return(sb.ToString());
                    }
                    var containsOperator = ResultOperators.FirstOrDefault(it => it is ContainsResultOperator);
                    if (containsOperator != null)
                    {
                        if (Selects.Count > 1)
                        {
                            //TOOD hack to fix problem with select
                            Selects.Clear();
                            Selects.Add(new SelectSource {
                                Sql = GetSqlExpression(Selector)
                            });
                        }
                    }
                }
                sb.Append(string.Join(@", ", Selects.Where(it => it.Sql != null).Select(it => it.Sql)));
            }

            sb.AppendLine();
            sb.Append(GetFromPart());
            sb.Append(GetWherePart());
            sb.Append(GetOrderPart());

            ProcessResultOperators(sb);

            return(sb.ToString());
        }