fix: fix gorm expression

Co-authored-by: 初音控灬 <xyfacai@gmail.com>

model/ability.go

@@ -10,16 +10,18 @@ type Ability struct {
 	Model     string `json:"model" gorm:"primaryKey;autoIncrement:false"`
 	ChannelId int    `json:"channel_id" gorm:"primaryKey;autoIncrement:false;index"`
 	Enabled   bool   `json:"enabled"`
-	Priority  *int64 `json:"priority" gorm:"bigint;default:0"`
+	Priority  *int64 `json:"priority" gorm:"bigint;default:0;index"`
 }
 
 func GetRandomSatisfiedChannel(group string, model string) (*Channel, error) {
 	ability := Ability{}
 	var err error = nil
+	maxPrioritySubQuery := DB.Model(&Ability{}).Select("MAX(priority)").Where("`group` = ? and model = ? and enabled = 1", group, model)
+	channelQuery := DB.Where("`group` = ? and model = ? and enabled = 1 and priority = (?)", group, model, maxPrioritySubQuery)
 	if common.UsingSQLite {
-		err = DB.Where("`group` = ? and model = ? and enabled = 1", group, model).Order("CASE WHEN priority <> 0 THEN priority ELSE RANDOM() END DESC ").Limit(1).First(&ability).Error
+		err = channelQuery.Order("RANDOM()").First(&ability).Error
 	} else {
-		err = DB.Where("`group` = ? and model = ? and enabled = 1", group, model).Order("CASE WHEN priority <> 0 THEN priority ELSE RAND() END DESC").Limit(1).First(&ability).Error
+		err = channelQuery.Order("RAND()").First(&ability).Error
 	}
 	if err != nil {
 		return nil, err

model/channel.go

@@ -15,7 +15,7 @@ type Channel struct {
 	CreatedTime        int64   `json:"created_time" gorm:"bigint"`
 	TestTime           int64   `json:"test_time" gorm:"bigint"`
 	ResponseTime       int     `json:"response_time"` // in milliseconds
-	BaseURL            *string `json:"base_url" gorm:"column:base_url"`
+	BaseURL            *string `json:"base_url" gorm:"column:base_url;default:''"`
 	Other              string  `json:"other"`
 	Balance            float64 `json:"balance"` // in USD
 	BalanceUpdatedTime int64   `json:"balance_updated_time" gorm:"bigint"`

web/src/pages/Channel/EditChannel.js

@@ -174,7 +174,7 @@ const EditChannel = () => {
       return;
     }
     let localInputs = inputs;
-    if (localInputs.base_url.endsWith('/')) {
+    if (localInputs.base_url && localInputs.base_url.endsWith('/')) {
       localInputs.base_url = localInputs.base_url.slice(0, localInputs.base_url.length - 1);
     }
     if (localInputs.type === 3 && localInputs.other === '') {