public void GroupBy()
        {
            var item = new TestLinqToSql {
                name = Guid.NewGuid().ToString()
            };

            g.sqlite.Insert <TestLinqToSql>().AppendData(item).ExecuteAffrows();

            var t1 = (from a in g.sqlite.Select <TestLinqToSql>()
                      where a.id == item.id
                      group a by new { a.id, a.name } into g
                      select new
            {
                g.Key.id,
                g.Key.name,
                cou = g.Count(),
                avg = g.Avg(g.Value.click),
                sum = g.Sum(g.Value.click),
                max = g.Max(g.Value.click),
                min = g.Min(g.Value.click)
            }).ToList();

            Assert.True(t1.Any());
            Assert.Equal(item.id, t1.First().id);
        }
Пример #2
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        public void Select()
        {
            var item = new TestLinqToSql {
                name = Guid.NewGuid().ToString()
            };

            g.sqlite.Insert <TestLinqToSql>().AppendData(item).ExecuteAffrows();

            var t1 = (from a in g.sqlite.Select <TestLinqToSql>()
                      where a.id == item.id
                      select new { a.id }).ToList();

            Assert.True(t1.Any());
            Assert.Equal(item.id, t1[0].id);
        }
Пример #3
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        public void From()
        {
            var item = new TestLinqToSql {
                name = Guid.NewGuid().ToString()
            };

            g.sqlite.Insert <TestLinqToSql>().AppendData(item).ExecuteAffrows();
            var comment = new TestLinqToSqlComment {
                TestLinqToSqlId = item.id, text = Guid.NewGuid().ToString()
            };

            g.sqlite.Insert <TestLinqToSqlComment>().AppendData(comment).ExecuteAffrows();

            var t1 = (from a in g.sqlite.Select <TestLinqToSql>()
                      from b in g.sqlite.Select <TestLinqToSqlComment>()
                      where a.id == b.TestLinqToSqlId
                      select a).ToList();

            Assert.True(t1.Any());
            //Assert.Equal(item.id, t1[0].id);

            var t2 = (from a in g.sqlite.Select <TestLinqToSql>()
                      from b in g.sqlite.Select <TestLinqToSqlComment>()
                      where a.id == b.TestLinqToSqlId
                      select new { a.id, bid = b.id }).ToList();

            Assert.True(t2.Any());
            //Assert.Equal(item.id, t2[0].id);
            //Assert.Equal(comment.id, t2[0].bid);

            var t3 = (from a in g.sqlite.Select <TestLinqToSql>()
                      from b in g.sqlite.Select <TestLinqToSqlComment>()
                      where a.id == b.TestLinqToSqlId
                      where a.id == item.id
                      select new { a.id, bid = b.id }).ToList();

            Assert.True(t3.Any());
            Assert.Equal(item.id, t3[0].id);
            Assert.Equal(comment.id, t3[0].bid);
        }
Пример #4
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        public void LeftJoin()
        {
            var item = new TestLinqToSql {
                name = Guid.NewGuid().ToString()
            };

            g.sqlite.Insert <TestLinqToSql>().AppendData(item).ExecuteAffrows();
            var comment = new TestLinqToSqlComment {
                TestLinqToSqlId = item.id, text = Guid.NewGuid().ToString()
            };

            g.sqlite.Insert <TestLinqToSqlComment>().AppendData(comment).ExecuteAffrows();

            var t1 = (from a in g.sqlite.Select <TestLinqToSql>()
                      join b in g.sqlite.Select <TestLinqToSqlComment>() on a.id equals b.TestLinqToSqlId into temp
                      from tc in temp.DefaultIfEmpty()
                      select a).ToList();

            Assert.True(t1.Any());
            //Assert.Equal(item.id, t1[0].id);

            var t2 = (from a in g.sqlite.Select <TestLinqToSql>()
                      join b in g.sqlite.Select <TestLinqToSqlComment>() on a.id equals b.TestLinqToSqlId into temp
                      from tc in temp.DefaultIfEmpty()
                      select new { a.id, bid = tc.id }).ToList();

            Assert.True(t2.Any());
            //Assert.Equal(item.id, t2[0].id);
            //Assert.Equal(comment.id, t2[0].bid);

            var t3 = (from a in g.sqlite.Select <TestLinqToSql>()
                      join b in g.sqlite.Select <TestLinqToSqlComment>() on a.id equals b.TestLinqToSqlId into temp
                      from tc in temp.DefaultIfEmpty()
                      where a.id == item.id
                      select new { a.id, bid = tc.id }).ToList();

            Assert.True(t3.Any());
            Assert.Equal(item.id, t3[0].id);
            Assert.Equal(comment.id, t3[0].bid);
        }
Пример #5
0
        public void CaseWhen()
        {
            var item = new TestLinqToSql {
                name = Guid.NewGuid().ToString()
            };

            g.sqlite.Insert <TestLinqToSql>().AppendData(item).ExecuteAffrows();

            var t1 = (from a in g.sqlite.Select <TestLinqToSql>()
                      where a.id == item.id
                      select new {
                a.id,
                a.name,
                testsub = new {
                    time = a.click > 10 ? "大于" : "小于或等于"
                }
            }).ToList();

            Assert.True(t1.Any());
            Assert.Equal(item.id, t1[0].id);
            Assert.Equal("小于或等于", t1[0].testsub.time);
        }