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游戏列表支持分页

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satori
2024-11-27 21:58:26 +08:00
parent f817aa12aa
commit 60626e7ca5
1 changed files with 29 additions and 17 deletions
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46
api/graphql.go
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@@ -532,8 +532,8 @@ func NewSchema(config Config) (graphql.Schema, error) {
Name: "GameConnection", Name: "GameConnection",
Description: "条件筛选游戏列表", Description: "条件筛选游戏列表",
Fields: graphql.Fields{ Fields: graphql.Fields{
"list": &graphql.Field{Type: graphql.NewList(game), Description: "游戏列表"}, "list": &graphql.Field{Type: graphql.NewList(game), Description: "游戏列表"},
//"total": &graphql.Field{Type: graphql.Int, Description: "游戏总数"}, "total": &graphql.Field{Type: graphql.Int, Description: "游戏总数"},
}, },
}), }),
Args: graphql.FieldConfigArgument{ Args: graphql.FieldConfigArgument{
@@ -561,35 +561,46 @@ func NewSchema(config Config) (graphql.Schema, error) {
var total int var total int
var err error var err error
var query = goqu.Dialect("mysql").From("web_article") var query = goqu.Dialect("mysql").From("web_article").Where(goqu.Ex{"category_top_id": 22})
// 筛选条件 // 筛选条件
for _, format := range []string{"id", "style", "device", "orientation", "era", "category_id", "tags"} { for _, format := range []string{"id", "title", "style", "device", "orientation", "era", "category_id", "tags"} {
if p.Args[format] != nil { if p.Args[format] != nil {
query = query.Where(goqu.C(format).Eq(p.Args[format])) query = query.Where(goqu.C(format).Eq(p.Args[format]))
} }
} }
// 排序条件 // 如果查询了 total 字段
if p.Args["sort"] != nil { if p.Info.FieldASTs[0].SelectionSet.Selections[1] != nil {
if p.Args["order"].(string) == "ASC" { sql, _, _ := query.ToSQL()
query = query.Order(goqu.C(p.Args["sort"].(string)).Asc()) fmt.Println(sql)
} sql = strings.Replace(sql, "SELECT *", "SELECT COUNT(*)", 1)
if p.Args["order"].(string) == "DESC" { fmt.Println(sql)
query = query.Order(goqu.C(p.Args["sort"].(string)).Desc()) if err := db.Raw(sql).Scan(&total).Error; err != nil {
return nil, err
} }
} }
// 如果没有外部排序则使用指定排序(正则sort只能是字母数字下划下) // 如果没有外部排序则使用指定排序(正则sort只能是字母数字下划下)
if p.Args["text"] == nil && p.Args["similar"] == nil && p.Args["interest"] == nil { if p.Args["text"] == nil && p.Args["similar"] == nil && p.Args["interest"] == nil {
sort := regexp.MustCompile(`[^a-zA-Z0-9_]`).ReplaceAllString(p.Args["sort"].(string), "") sort := regexp.MustCompile(`[^a-zA-Z0-9_]`).ReplaceAllString(p.Args["sort"].(string), "")
query = query.Select("web_images.id", goqu.L( query = query.Select("web_article.id", goqu.L(
fmt.Sprintf("ROW_NUMBER() OVER(ORDER BY web_images.%s %s)", sort, p.Args["order"]), fmt.Sprintf("ROW_NUMBER() OVER(ORDER BY web_article.%s %s)", sort, p.Args["order"]),
).As("row_num")) ).As("row_num"))
} else {
// 排序条件
if p.Args["sort"] != nil {
if p.Args["order"].(string) == "ASC" {
query = query.Order(goqu.C(p.Args["sort"].(string)).Asc())
}
if p.Args["order"].(string) == "DESC" {
query = query.Order(goqu.C(p.Args["sort"].(string)).Desc())
}
}
} }
// 取所有数据的前N条 // 取所有数据的前N条
sql, _, _ := query.Where(goqu.Ex{"article_category_top_id": 22}).ToSQL() sql, _, _ := query.ToSQL()
fmt.Println(sql) fmt.Println(sql)
// 遊標截取篩選結果集的前N条 // 遊標截取篩選結果集的前N条
@@ -607,13 +618,14 @@ func NewSchema(config Config) (graphql.Schema, error) {
sql = fmt.Sprintf(` sql = fmt.Sprintf(`
WITH RankedArticles AS (%s) WITH RankedArticles AS (%s)
SELECT * FROM web_images INNER JOIN( SELECT * FROM web_article INNER JOIN(
SELECT id, row_num FROM RankedArticles %s SELECT id, row_num FROM RankedArticles %s
) AS LimitedRanked ON LimitedRanked.id = web_images.id ) AS LimitedRanked ON LimitedRanked.id = web_article.id
ORDER BY LimitedRanked.row_num ASC LIMIT %d ORDER BY LimitedRanked.row_num ASC LIMIT %d
`, sql, cursor, limit) `, sql, cursor, limit)
if err := db.Limit(limit).Where("category_top_id = 22").Find(&games).Error; err != nil { if err := db.Raw(sql).Scan(&games).Error; err != nil {
fmt.Println("获取游戏列表失败", err)
return nil, err return nil, err
} }