Beispiel #1
0
        public void WhereInArray()
        {
            var q = Builders <MyModel> .Select(x => new { x.Id })
                    .Where(WhereBuilder <MyModel> .In(x => x.Id, new[] { 1, 2, 3 }));

            Utils.AssertRawQuery(q, @"SELECT ""id"" FROM model WHERE (""id"") = ANY(@1::int[])",
                                 new Param(new[] { 1, 2, 3 }, NpgsqlDbType.Array | NpgsqlDbType.Integer));
        }
Beispiel #2
0
        public void WhereInSubquery()
        {
            var sq = Builders <MyModel> .Select(x => x.Id).AsSubquery();

            var q = Builders <MyModel> .Select(x => new { x.Id })
                    .Where(WhereBuilder <MyModel> .In(x => x.Id, sq));

            Utils.AssertRawQuery(q, @"SELECT ""id"" FROM model WHERE (""id"") IN (SELECT ""id"" FROM model)");
        }
Beispiel #3
0
        private void HandleTable(Node?parent, SqlTable node, IEnumerable <string> prefix,
                                 IResolveFieldContext context, ICollection <string> selections, ICollection <string> tables,
                                 ICollection <WhereCondition> wheres, ICollection <string> orders, IEnumerable batchScope,
                                 SqlCompilerContext compilerContext)
        {
            var arguments = node.Arguments;

            // also check for batching
            if (node.Paginate == false && (node.Batch == null || node.Junction?.Batch == null || parent == null))
            {
                if (node.Junction?.Where != null)
                {
                    var whereBuilder = new WhereBuilder(_dialect.Quote(node.Junction.As), wheres);
                    node.Junction.Where.Invoke(whereBuilder, arguments, context, node);
                }

                // only add the where clause if there's no join or the join is not paginated
                if (node.Where != null)
                {
                    var whereBuilder = new WhereBuilder(_dialect.Quote(node.As), wheres);
                    node.Where.Invoke(whereBuilder, arguments, context, node);
                }
            }

            if (ThisIsNotTheEndOfThisBatch(parent, node))
            {
                if (node.Junction?.OrderBy != null)
                {
                    var junctionOrderBy = _dialect.CompileOrderBy(node.Junction.OrderBy);
                    orders.Add(junctionOrderBy);
                }

                if (node.OrderBy != null)
                {
                    var orderBy = _dialect.CompileOrderBy(node.OrderBy);
                    orders.Add(orderBy);
                }

                // if (node.Junction?.SortKey != null)
                // {
                //     var junctionOrderBy =  _dialect.CompileOrderBy(node.Junction.SortKey);
                //     orders.Add(junctionOrderBy);
                // }
                //
                // if (node.SortKey != null)
                // {
                //     var orderBy = _dialect.CompileOrderBy(node.SortKey);
                //     orders.Add(orderBy);
                // }
            }

            if (node.Join != null)
            {
                if (parent is SqlTable parentTable)
                {
                    var join = new JoinBuilder(_dialect.Quote(parentTable.Name), _dialect.Quote(parentTable.As),
                                               _dialect.Quote(node.Name), _dialect.Quote(node.As));
                    node.Join(join, arguments, context, node);

                    if (node.Paginate)
                    {
                        _dialect.HandleJoinedOneToManyPaginated(parentTable, node, arguments, context, tables, compilerContext,
                                                                join.Condition == null ? null : _dialect.CompileConditions(new[] { join.Condition }, compilerContext));
                    }
                    else if (join.Condition is RawCondition)
                    {
                        tables.Add($"{join.From} ON {_dialect.CompileConditions(new[] {join.Condition}, compilerContext)}");
                    }
                    else if (join.Condition != null)
                    {
                        tables.Add($"LEFT JOIN {_dialect.Quote(node.Name)} {_dialect.Quote(node.As)} ON {_dialect.CompileConditions(new[] {join.Condition}, compilerContext)}");
                    }

                    return;
                }
            }
            else if (node.Junction?.Batch != null)
            {
                if (parent is SqlTable parentTable)
                {
                    string columnName;

                    if (node.Junction.Batch.ParentKey.Expression != null)
                    {
                        columnName = node.Junction.Batch.ParentKey.Expression(_dialect.Quote(parentTable.As), node.Junction.Batch.ParentKey.Arguments, context, node);
                    }
                    else
                    {
                        columnName = $"{_dialect.Quote(parentTable.As)}.{_dialect.Quote(node.Junction.Batch.ParentKey.Name)}";
                    }

                    selections.Add($"{columnName} AS ${_dialect.Quote(JoinPrefix(prefix) + node.Junction.Batch.ParentKey.As)}");
                }
                else
                {
                    var join = new JoinBuilder(_dialect.Quote(node.Name), _dialect.Quote(node.As), _dialect.Quote(node.Junction.Table), _dialect.Quote(node.Junction.As));

                    if (node.Junction.Batch.Join != null)
                    {
                        node.Junction.Batch.Join(join, arguments, context, node);
                    }

                    if (join.Condition == null)
                    {
                        throw new JoinMonsterException($"The 'batch' join condition on table '{node.Name}' for junction '{node.Junction.Table}' cannot be null.");
                    }


                    var joinCondition = _dialect.CompileConditions(new[] { join.Condition }, compilerContext);

                    if (node.Paginate)
                    {
                        _dialect.HandleBatchedManyToManyPaginated(parent, node, arguments, context, tables, batchScope.Cast <object>(),
                                                                  compilerContext, joinCondition);
                    }
                    else
                    {
                        tables.Add($"FROM {_dialect.Quote(node.Junction.Table)} {_dialect.Quote(node.Junction.As)}");
                        tables.Add($"LEFT JOIN {_dialect.Quote(node.Name)} {_dialect.Quote(node.As)} ON {joinCondition}");

                        var column       = _dialect.Quote(node.Junction.Batch.ThisKey.Name);
                        var whereBuilder = new WhereBuilder(_dialect.Quote(node.Junction.As), wheres);
                        if (node.Junction.Batch.Where != null)
                        {
                            node.Junction.Batch.Where(whereBuilder, column, batchScope, arguments, context, node);
                        }
                        else
                        {
                            whereBuilder.In(column, batchScope);
                        }
                    }
                }
            }
            else if (node.Junction?.FromParent != null && node.Junction?.ToChild != null)
            {
                if (parent is SqlTable parentTable)
                {
                    // TODO: Handle batching and paging
                    var fromParentJoin = new JoinBuilder(_dialect.Quote(parentTable.Name), _dialect.Quote(parentTable.As), _dialect.Quote(node.Junction.Table), _dialect.Quote(node.Junction.As));
                    var toChildJoin    = new JoinBuilder(_dialect.Quote(parentTable.Name), _dialect.Quote(node.Junction.As), _dialect.Quote(node.Name), _dialect.Quote(node.As));
                    node.Junction.FromParent(fromParentJoin, arguments, context, node);
                    node.Junction.ToChild(toChildJoin, arguments, context, node);

                    if (fromParentJoin.Condition == null)
                    {
                        throw new JoinMonsterException($"The 'fromParent' join condition on table '{node.Name}' for junction '{node.Junction.Table}' cannot be null.");
                    }
                    if (toChildJoin.Condition == null)
                    {
                        throw new JoinMonsterException($"The 'toChild' join condition on table '{node.Name}' for junction '{node.Junction.Table}' cannot be null.");
                    }

                    var compiledFromParentJoinCondition = _dialect.CompileConditions(new[] { fromParentJoin.Condition }, compilerContext);
                    var compiledToChildJoinCondition    = _dialect.CompileConditions(new[] { toChildJoin.Condition }, compilerContext);

                    if (node.Paginate)
                    {
                        // _dialect.HandleJoinedManyToManyPaginated();
                    }
                    else
                    {
                        if (fromParentJoin.Condition is RawCondition)
                        {
                            tables.Add($"{fromParentJoin.From} ON {compiledFromParentJoinCondition}");
                        }
                        else
                        {
                            tables.Add(
                                $"LEFT JOIN {_dialect.Quote(node.Junction.Table)} {_dialect.Quote(node.Junction.As)} ON {compiledFromParentJoinCondition}");
                        }

                        if (toChildJoin.Condition is RawCondition)
                        {
                            tables.Add($"{toChildJoin.From} ON {compiledToChildJoinCondition}");
                        }
                        else
                        {
                            tables.Add($"LEFT JOIN {_dialect.Quote(node.Name)} {_dialect.Quote(node.As)} ON {compiledToChildJoinCondition}");
                        }
                    }
                }

                return;
            }
            else if (node.Batch != null)
            {
                if (parent is SqlTable parentTable)
                {
                    string columnName;

                    if (node.Batch.ParentKey.Expression != null)
                    {
                        columnName = node.Batch.ParentKey.Expression(_dialect.Quote(parentTable.As), node.Batch.ParentKey.Arguments, context, node);
                    }
                    else
                    {
                        columnName = $"{_dialect.Quote(parentTable.As)}.{_dialect.Quote(node.Batch.ParentKey.Name)}";
                    }

                    selections.Add($"{columnName} AS {_dialect.Quote(JoinPrefix(prefix) + node.Batch.ParentKey.As)}");
                }
                else if (node.Paginate)
                {
                    _dialect.HandleBatchedOneToManyPaginated(parent, node, arguments, context, tables, batchScope.Cast <object>(), compilerContext);
                }
                else
                {
                    tables.Add($"FROM {_dialect.Quote(node.Name)} AS {_dialect.Quote(node.As)}");

                    var column       = _dialect.Quote(node.Batch.ThisKey.Name);
                    var whereBuilder = new WhereBuilder(_dialect.Quote(node.As), wheres);
                    if (node.Batch.Where != null)
                    {
                        node.Batch.Where(whereBuilder, column, batchScope, arguments, context, node);
                    }
                    else
                    {
                        whereBuilder.In(column, batchScope);
                    }
                }

                return;
            }
            else if (node.Paginate)
            {
                _dialect.HandlePaginationAtRoot(parent, node, arguments, context, tables, compilerContext);
                return;
            }

            tables.Add($"FROM {_dialect.Quote(node.Name)} AS {_dialect.Quote(node.As)}");
        }