Fixed compilation errors on RelationMixin

Betelgeyser · Betelgeyser · commit 5c2c91c9d82c · 2022-07-05T21:02:26.000+05:00
```
../dpq/source/dpq/relationproxy.d(382,58): Error: cannot implicitly convert expression `((Row __dop7675 = result.opIndex(0);) , __dop7675.opIndex("id")).as()` of type `Nullable!long` to `long`
../dpq/source/dpq/relationproxy.d(434,26): Error: cannot implicitly convert expression `((Row __dop7707 = result.opIndex(0);) , __dop7707.opIndex(0)).as()` of type `Nullable!long` to `long`
```
diff --git a/source/dpq/relationproxy.d b/source/dpq/relationproxy.d
@@ -381,7 +381,7 @@ struct RelationProxy(T)
 
       alias pkMem = Alias!(__traits(getMember, record, pk));
       auto result = qb.query(_connection).run();
-      __traits(getMember, record, pk) = result[0][pkAttr].as!(typeof(pkMem));
+      __traits(getMember, record, pk) = result[0][pkAttr].as!(typeof(pkMem)).get;
 
       return record;
    }
@@ -433,7 +433,7 @@ struct RelationProxy(T)
          .select("count(%s)".format(col));
 
       auto result = qb.query(_connection).run();
-      return result[0][0].as!long;
+      return result[0][0].as!long().get;
    }
 
    /**

Original file line number	Diff line number	Diff line change
`@@ -381,7 +381,7 @@ struct RelationProxy(T)`
`381`	`381`
`382`	`382`	`alias pkMem = Alias!(__traits(getMember, record, pk));`
`383`	`383`	`auto result = qb.query(_connection).run();`
`384`		`- __traits(getMember, record, pk) = result[0][pkAttr].as!(typeof(pkMem));`
	`384`	`+ __traits(getMember, record, pk) = result[0][pkAttr].as!(typeof(pkMem)).get;`
`385`	`385`
`386`	`386`	`return record;`
`387`	`387`	`}`
`@@ -433,7 +433,7 @@ struct RelationProxy(T)`
`433`	`433`	`.select("count(%s)".format(col));`
`434`	`434`
`435`	`435`	`auto result = qb.query(_connection).run();`
`436`		`- return result[0][0].as!long;`
	`436`	`+ return result[0][0].as!long().get;`
`437`	`437`	`}`
`438`	`438`
`439`	`439`	`/**`