try to optimise DefaultLikeStore.BulkExists

initial like tests

common/likes.go

@@ -17,18 +17,28 @@ type LikeStore interface {
 type DefaultLikeStore struct {
 	count        *sql.Stmt
 	delete       *sql.Stmt
+	singleExists *sql.Stmt
 }
 
 func NewDefaultLikeStore(acc *qgen.Accumulator) (*DefaultLikeStore, error) {
 	return &DefaultLikeStore{
 		count:        acc.Count("likes").Prepare(),
 		delete:       acc.Delete("likes").Where("targetItem=? AND targetType=?").Prepare(),
+		singleExists: acc.Select("likes").Columns("targetItem").Where("sentBy=? AND targetType=? AND targetItem=?").Prepare(),
 	}, acc.FirstError()
 }
 
 // TODO: Write a test for this
 func (s *DefaultLikeStore) BulkExists(ids []int, sentBy int, targetType string) (eids []int, err error) {
-	rows, err := qgen.NewAcc().Select("likes").Columns("targetItem").Where("sentBy=? AND targetType=?").In("targetItem", ids).Query(sentBy, targetType)
+	if len(ids) == 0 {
+		return nil, nil
+	}
+	var rows *sql.Rows
+	if len(ids) == 1 {
+		rows, err = s.singleExists.Query(sentBy, targetType, ids[0])
+	} else {
+		rows, err = qgen.NewAcc().Select("likes").Columns("targetItem").Where("sentBy=? AND targetType=?").In("targetItem", ids).Query(sentBy, targetType)
+	}
 	if err == sql.ErrNoRows {
 		return nil, nil
 	} else if err != nil {

misc_test.go

@@ -13,8 +13,8 @@ import (
 	"time"
 
 	c "github.com/Azareal/Gosora/common"
-	"github.com/Azareal/Gosora/common/phrases"
 	"github.com/Azareal/Gosora/common/gauth"
+	"github.com/Azareal/Gosora/common/phrases"
 )
 
 func miscinit(t *testing.T) {
@@ -1058,6 +1058,54 @@ func testReplyStore(t *testing.T, newID, newPostCount int, ip string) {
 	// TODO: Add tests for ReplyCache
 }
 
+func TestLikes(t *testing.T) {
+	miscinit(t)
+	if !c.PluginsInited {
+		c.InitPlugins()
+	}
+
+	uid := 1
+	ids, err := c.Likes.BulkExists([]int{}, uid, "replies")
+	//recordMustNotExist(t, err, "no likes should be found")
+	expectNilErr(t, err)
+	expect(t, len(ids) == 0, "len ids should be 0")
+
+	topic, err := c.Topics.Get(1)
+	expectNilErr(t, err)
+	rid, err := c.Rstore.Create(topic, "hiii", "", uid)
+	expectNilErr(t, err)
+	r, err := c.Rstore.Get(rid)
+	expectNilErr(t, err)
+	expectNilErr(t, r.Like(uid))
+	ids, err = c.Likes.BulkExists([]int{rid}, uid, "replies")
+	expectNilErr(t, err)
+	expect(t, len(ids) == 1, fmt.Sprintf("ids should be %d not %d", 1, len(ids)))
+
+	rid2, err := c.Rstore.Create(topic, "hi 2 u 2", "", uid)
+	expectNilErr(t, err)
+	r2, err := c.Rstore.Get(rid2)
+	expectNilErr(t, err)
+	expectNilErr(t, r2.Like(uid))
+	ids, err = c.Likes.BulkExists([]int{rid, rid2}, uid, "replies")
+	expectNilErr(t, err)
+	expect(t, len(ids) == 2, fmt.Sprintf("ids should be %d not %d", 2, len(ids)))
+
+	expectNilErr(t, r.Unlike(uid))
+	ids, err = c.Likes.BulkExists([]int{rid2}, uid, "replies")
+	expectNilErr(t, err)
+	expect(t, len(ids) == 1, fmt.Sprintf("ids should be %d not %d", 1, len(ids)))
+	expectNilErr(t, r2.Unlike(uid))
+	ids, err = c.Likes.BulkExists([]int{}, uid, "replies")
+	//recordMustNotExist(t, err, "no likes should be found")
+	expectNilErr(t, err)
+	expect(t, len(ids) == 0, "len ids should be 0")
+
+	//BulkExists(ids []int, sentBy int, targetType string) (eids []int, err error)
+
+	expectNilErr(t, topic.Like(1, uid))
+	expectNilErr(t, topic.Unlike(uid))
+}
+
 func TestAttachments(t *testing.T) {
 	miscinit(t)
 	if !c.PluginsInited {
@@ -1813,7 +1861,7 @@ func TestMFAStore(t *testing.T) {
 	recordMustNotExist(t, err, "mfa uid 1 should not exist")
 
 	secret, err := c.GenerateGAuthSecret()
-	expectNilErr(t,err)
+	expectNilErr(t, err)
 	expectNilErr(t, c.MFAstore.Create(secret, 1))
 	_, err = c.MFAstore.Get(0)
 	recordMustNotExist(t, err, "mfa uid 0 should not exist")
@@ -1844,7 +1892,7 @@ func TestMFAStore(t *testing.T) {
 		test(i)
 	}
 	token, err := gauth.GetTOTPToken(secret)
-	expectNilErr(t,err)
+	expectNilErr(t, err)
 	expectNilErr(t, c.Auth.ValidateMFAToken(token, 1))
 	expectNilErr(t, it.Delete())
 	_, err = c.MFAstore.Get(-1)