Initial backend repository commit.

Set up project files and add .gitignore to exclude local build/runtime artifacts.

Made-with: Cursor

internal/model/user_block.go

@@ -0,0 +1,27 @@
+package model
+
+import (
+	"time"
+
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+)
+
+// UserBlock 用户拉黑关系
+type UserBlock struct {
+	ID        string    `json:"id" gorm:"type:varchar(36);primaryKey"`
+	BlockerID string    `json:"blocker_id" gorm:"type:varchar(36);index;not null;uniqueIndex:idx_blocker_blocked"` // 拉黑人
+	BlockedID string    `json:"blocked_id" gorm:"type:varchar(36);index;not null;uniqueIndex:idx_blocker_blocked"` // 被拉黑人
+	CreatedAt time.Time `json:"created_at" gorm:"autoCreateTime"`
+}
+
+func (b *UserBlock) BeforeCreate(tx *gorm.DB) error {
+	if b.ID == "" {
+		b.ID = uuid.New().String()
+	}
+	return nil
+}
+
+func (UserBlock) TableName() string {
+	return "user_blocks"
+}