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Update image search and pagination logic

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觉
2023-11-14 01:43:49 +08:00
parent 86345d50f9
commit 8a83cdd61a
1 changed files with 37 additions and 14 deletions
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51
bin/main.go
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@@ -164,7 +164,7 @@ func (image *Image) GetSimilarImagesIdList(collection_name string) (ids []int64)
}
// 用向量查询相似图片
topk := 1000
topk := 200
sp, _ := entity.NewIndexIvfFlatSearchParam(64)
vectors := []entity.Vector{entity.FloatVector(embedding)}
resultx, err := milvusConnection.Client.Search(ctx, collection_name, nil, "", []string{"id", "article_id"}, vectors, "embedding", entity.L2, topk, sp)
@@ -278,7 +278,7 @@ func main() {
// 排序
// 分页
// 获取查询条件(忽略空值), 超级简洁写法
// 获取查询条件(忽略空值)
QueryConditions := func(key string) (list []string) {
for _, item := range strings.Split(r.URL.Query().Get(key), ",") {
if item != "" {
@@ -288,7 +288,7 @@ func main() {
return list
}
// 拼接查询条件, 超级简洁写法
// 拼接查询条件
var addCondition = func(conditions *strings.Builder, key, column string) {
if values := QueryConditions(key); len(values) > 0 {
if conditions.Len() > 0 {
@@ -305,6 +305,11 @@ func main() {
addCondition(&conditions, "categories", "categorie")
addCondition(&conditions, "sets", "sets")
// 获取图片列表
var images ListView
var image_list []Image
images.Page, images.PageSize = stringToInt(r.URL.Query().Get("page"), 1), stringToInt(r.URL.Query().Get("pageSize"), 20)
var ids []int64
if similar := QueryConditions("similar"); len(similar) > 0 {
id, err := strconv.Atoi(strings.Trim(similar[0], "'"))
@@ -314,6 +319,15 @@ func main() {
}
// 如果指定以某个图片为基准的相似图片列表范围, 获取相似图片ID的列表
ids = (&Image{Id: id}).GetSimilarImagesIdList("default")
images.Total = len(ids)
// 按照分页取相应的图片ID
if len(ids) > images.Page*images.PageSize {
ids = ids[(images.Page-1)*images.PageSize : images.Page*images.PageSize]
} else {
ids = ids[(images.Page-1)*images.PageSize:]
}
idsStr := make([]string, len(ids))
for i, v := range ids {
idsStr[i] = strconv.FormatInt(v, 10)
@@ -328,11 +342,8 @@ func main() {
}
}
// 获取图片列表
var images ListView
var image_list []Image
images.Page, images.PageSize = stringToInt(r.URL.Query().Get("page"), 1), stringToInt(r.URL.Query().Get("pageSize"), 20)
rows, err := mysqlConnection.Database.Query("SELECT id, width, height, content, update_time, create_time, user_id, article_id, article_category_top_id, praise_count, collect_count FROM web_images"+conditions.String()+" LIMIT ?, ?", (images.Page-1)*images.PageSize, images.PageSize)
// 开始查询 +" LIMIT ?, ?", (images.Page-1)*images.PageSize, images.PageSize
rows, err := mysqlConnection.Database.Query(fmt.Sprintf("SELECT id, width, height, content, update_time, create_time, user_id, article_id, article_category_top_id, praise_count, collect_count FROM web_images %s", conditions.String()))
if err != nil {
log.Println("获取图片列表失败", err)
http.Error(w, err.Error(), http.StatusBadRequest)
@@ -439,14 +450,26 @@ func main() {
images.List[i] = v
}
// 获取总数
err = mysqlConnection.Database.QueryRow("SELECT COUNT(*) FROM web_images" + conditions.String()).Scan(&images.Total)
if err != nil {
log.Println("获取图片总数失败", err)
http.Error(w, err.Error(), http.StatusBadRequest)
return
if similar := QueryConditions("similar"); len(similar) > 0 {
// 总数不变
} else {
// 获取总数
err = mysqlConnection.Database.QueryRow("SELECT COUNT(*) FROM web_images" + conditions.String()).Scan(&images.Total)
if err != nil {
log.Println("获取图片总数失败", err)
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
}
//// 获取总数
//err = mysqlConnection.Database.QueryRow("SELECT COUNT(*) FROM web_images" + conditions.String()).Scan(&images.Total)
//if err != nil {
// log.Println("获取图片总数失败", err)
// http.Error(w, err.Error(), http.StatusBadRequest)
// return
//}
// 是否有下一页
images.Next = images.Total > images.Page*images.PageSize