From: Taichi Uragami <backpaper0@gmail.com>
Date: Fri, 6 Apr 2012 14:52:39 +0000 (+0900)
Subject: Added support for left outer join.
X-Git-Tag: v1.0.0~7^2~1
X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=cb29e503658e2a3339c265651a869fcbe0d5bd7d;p=iciql.git

Added support for left outer join.
---

diff --git a/src/com/iciql/Query.java b/src/com/iciql/Query.java
index aa0ce4b..9aefe27 100644
--- a/src/com/iciql/Query.java
+++ b/src/com/iciql/Query.java
@@ -845,6 +845,15 @@ public class Query<T> {
 		return new QueryJoin(this, join);
 	}
 
+    @SuppressWarnings({ "unchecked", "rawtypes" })
+    public <A> QueryJoin<T> leftJoin(A alias) {
+        TableDefinition<T> def = (TableDefinition<T>) db.define(alias.getClass());
+        SelectTable<T> join = new SelectTable(db, this, alias, true);
+        def.initSelectObject(join, alias, aliasMap);
+        joins.add(join);
+        return new QueryJoin(this, join);
+    }
+
 	Db getDb() {
 		return db;
 	}
diff --git a/tests/com/iciql/test/JoinTest.java b/tests/com/iciql/test/JoinTest.java
index 07de098..1fea444 100644
--- a/tests/com/iciql/test/JoinTest.java
+++ b/tests/com/iciql/test/JoinTest.java
@@ -81,6 +81,16 @@ public class JoinTest {
 		assertEquals(2, users.get(0).id);
 	}
 
+    @Test
+    public void testLeftJoin() throws Exception {
+        final UserId u = new UserId();
+        final UserNote n = new UserNote();
+
+        List<UserId> notes = db.from(u).leftJoin(n).on(u.id).is(n.userId).where(u.id).is(4).select();
+        assertEquals(1, notes.size());
+        assertEquals(4, notes.get(0).id);
+    }
+
 	@IQTable
 	public static class UserId {
 
@@ -104,7 +114,7 @@ public class JoinTest {
 		}
 
 		public static List<UserId> getList() {
-			UserId[] list = { new UserId(1, "Tom"), new UserId(2, "Dick"), new UserId(3, "Harry") };
+			UserId[] list = { new UserId(1, "Tom"), new UserId(2, "Dick"), new UserId(3, "Harry"), new UserId(4, "Jack") };
 			return Arrays.asList(list);
 		}
 	}