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Add arithmetic and joined-alias helpers to typed SQL DSL

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root
2026-02-27 08:49:00 +01:00
parent f293bd95c6
commit c0fb2e5232
4 changed files with 291 additions and 6 deletions
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60
DynamORM.Tests/TypedSql/TypedSqlDslTests.cs
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@@ -202,6 +202,22 @@ namespace DynamORM.Tests.TypedSql
NormalizeSql(cmd.CommandText()));
}
[Test]
public void TestSelectSqlSupportsArithmeticExpressions()
{
var cmd = Database.FromTyped<TypedFluentUser>("u")
.SelectSql(
u => (u.Col(x => x.Id) + Sql.Val(1)).As("plus_one"),
u => u.Col(x => x.Id).Sub(2).As("minus_two"),
u => u.Col(x => x.Id).Mul(3).As("times_three"),
u => u.Col(x => x.Id).Div(4).As("div_four"),
u => u.Col(x => x.Id).Mod(5).As("mod_five"));
Assert.AreEqual(
"SELECT (u.\"id_user\" + [$0]) AS \"plus_one\", (u.\"id_user\" - [$1]) AS \"minus_two\", (u.\"id_user\" * [$2]) AS \"times_three\", (u.\"id_user\" / [$3]) AS \"div_four\", (u.\"id_user\" % [$4]) AS \"mod_five\" FROM \"sample_users\" AS u",
NormalizeSql(cmd.CommandText()));
}
[Test]
public void TestSelectSqlSupportsCustomFunction()
{
@@ -224,6 +240,36 @@ namespace DynamORM.Tests.TypedSql
NormalizeSql(cmd.CommandText()));
}
[Test]
public void TestSelectSqlSupportsJoinedAliasHelpers()
{
var other = Sql.Table<TypedFluentUser>("x");
var cmd = Database.FromTyped<TypedFluentUser>("u")
.Join<TypedFluentUser>(j => j.Left().As("x").OnSql((l, r) => l.Col(a => a.Id).Eq(r.Col(a => a.Id))))
.SelectSql(
u => u.All(),
u => other.All(),
u => other.Col(x => x.Code).As("joined_code"));
Assert.AreEqual(
"SELECT u.*, x.*, x.\"user_code\" AS \"joined_code\" FROM \"sample_users\" AS u LEFT JOIN \"sample_users\" AS x ON (u.\"id_user\" = x.\"id_user\")",
NormalizeSql(cmd.CommandText()));
}
[Test]
public void TestWhereSqlSupportsJoinedAliasHelpers()
{
var other = Sql.Table<TypedFluentUser>("x");
var cmd = Database.FromTyped<TypedFluentUser>("u")
.Join<TypedFluentUser>(j => j.Left().As("x").OnSql((l, r) => l.Col(a => a.Id).Eq(r.Col(a => a.Id))))
.WhereSql(u => other.Col(x => x.Code).IsNotNull())
.SelectSql(u => u.Col(x => x.Id));
Assert.AreEqual(
"SELECT u.\"id_user\" FROM \"sample_users\" AS u LEFT JOIN \"sample_users\" AS x ON (u.\"id_user\" = x.\"id_user\") WHERE (x.\"user_code\" IS NOT NULL)",
NormalizeSql(cmd.CommandText()));
}
[Test]
public void TestSelectSqlSupportsScalarSubQuery()
{
@@ -271,6 +317,20 @@ namespace DynamORM.Tests.TypedSql
NormalizeSql(cmd.CommandText()));
}
[Test]
public void TestOrderBySqlSupportsNullOrderingAndRawFragments()
{
var cmd = Database.FromTyped<TypedFluentUser>("u")
.SelectSql(u => u.Col(x => x.Id))
.OrderBySql(
u => u.Col(x => x.Code).Asc().NullsLast(),
u => Sql.RawOrder("2 DESC"));
Assert.AreEqual(
"SELECT u.\"id_user\" FROM \"sample_users\" AS u ORDER BY u.\"user_code\" ASC NULLS LAST, 2 DESC",
NormalizeSql(cmd.CommandText()));
}
[Test]
public void TestWhereSqlSupportsTypedExistsHelper()
{