Manage User Badges in the UI

models/user/badge.go

@@ -6,8 +6,12 @@ package user
 import (
 	"context"
 	"fmt"
+	"strings"
 
 	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
 )
 
 // Badge represents a user badge
@@ -25,6 +29,50 @@ type UserBadge struct { //nolint:revive
 	UserID  int64 `xorm:"INDEX"`
 }
 
+// ErrBadgeAlreadyExist represents a "badge already exists" error.
+type ErrBadgeAlreadyExist struct {
+	Slug string
+}
+
+// IsErrBadgeAlreadyExist checks if an error is a ErrBadgeAlreadyExist.
+func IsErrBadgeAlreadyExist(err error) bool {
+	_, ok := err.(ErrBadgeAlreadyExist)
+	return ok
+}
+
+func (err ErrBadgeAlreadyExist) Error() string {
+	return fmt.Sprintf("badge already exists [slug: %s]", err.Slug)
+}
+
+// Unwrap unwraps this error as a ErrExist error
+func (err ErrBadgeAlreadyExist) Unwrap() error {
+	return util.ErrAlreadyExist
+}
+
+// ErrBadgeNotExist represents a "BadgeNotExist" kind of error.
+type ErrBadgeNotExist struct {
+	Slug string
+	ID   int64
+}
+
+func (err ErrBadgeNotExist) Error() string {
+	if err.ID > 0 {
+		return fmt.Sprintf("badge does not exist [id: %d]", err.ID)
+	}
+	return fmt.Sprintf("badge does not exist [slug: %s]", err.Slug)
+}
+
+// IsErrBadgeNotExist checks if an error is a ErrBadgeNotExist.
+func IsErrBadgeNotExist(err error) bool {
+	_, ok := err.(ErrBadgeNotExist)
+	return ok
+}
+
+// Unwrap unwraps this error as a ErrNotExist error
+func (err ErrBadgeNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
 func init() {
 	db.RegisterModel(new(Badge))
 	db.RegisterModel(new(UserBadge))
@@ -42,13 +90,37 @@ func GetUserBadges(ctx context.Context, u *User) ([]*Badge, int64, error) {
 	return badges, count, err
 }
 
+// GetBadgeUsersOptions contains options for getting users with a specific badge
+type GetBadgeUsersOptions struct {
+	db.ListOptions
+	Badge *Badge
+}
+
+// GetBadgeUsers returns the users that have a specific badge with pagination support.
+func GetBadgeUsers(ctx context.Context, opts *GetBadgeUsersOptions) ([]*User, int64, error) {
+	sess := db.GetEngine(ctx).
+		Select("`user`.*").
+		Join("INNER", "user_badge", "`user_badge`.user_id=user.id").
+		Join("INNER", "badge", "`user_badge`.badge_id=badge.id").
+		Where("badge.slug=?", opts.Badge.Slug)
+
+	if opts.Page > 0 {
+		sess = db.SetSessionPagination(sess, opts)
+	}
+
+	users := make([]*User, 0, opts.PageSize)
+	count, err := sess.FindAndCount(&users)
+	return users, count, err
+}
+
 // CreateBadge creates a new badge.
 func CreateBadge(ctx context.Context, badge *Badge) error {
+	// this will fail if the badge already exists due to the UNIQUE constraint
 	_, err := db.GetEngine(ctx).Insert(badge)
 	return err
 }
 
-// GetBadge returns a badge
+// GetBadge returns a specific badge
 func GetBadge(ctx context.Context, slug string) (*Badge, error) {
 	badge := new(Badge)
 	has, err := db.GetEngine(ctx).Where("slug=?", slug).Get(badge)
@@ -60,14 +132,26 @@ func GetBadge(ctx context.Context, slug string) (*Badge, error) {
 
 // UpdateBadge updates a badge based on its slug.
 func UpdateBadge(ctx context.Context, badge *Badge) error {
-	_, err := db.GetEngine(ctx).Where("slug=?", badge.Slug).Update(badge)
+	_, err := db.GetEngine(ctx).Where("slug=?", badge.Slug).Cols("description", "image_url").Update(badge)
 	return err
 }
 
-// DeleteBadge deletes a badge.
+// DeleteBadge deletes a badge and all associated user_badge entries.
 func DeleteBadge(ctx context.Context, badge *Badge) error {
-	_, err := db.GetEngine(ctx).Where("slug=?", badge.Slug).Delete(badge)
-	return err
+	return db.WithTx(ctx, func(ctx context.Context) error {
+		// First delete all user_badge entries for this badge
+		if _, err := db.GetEngine(ctx).
+			Where("badge_id = (SELECT id FROM badge WHERE slug = ?)", badge.Slug).
+			Delete(&UserBadge{}); err != nil {
+			return err
+		}
+
+		// Then delete the badge itself
+		if _, err := db.GetEngine(ctx).Where("slug=?", badge.Slug).Delete(badge); err != nil {
+			return err
+		}
+		return nil
+	})
 }
 
 // AddUserBadge adds a badge to a user.
@@ -84,7 +168,7 @@ func AddUserBadges(ctx context.Context, u *User, badges []*Badge) error {
 			if err != nil {
 				return err
 			} else if !has {
-				return fmt.Errorf("badge with slug %s doesn't exist", badge.Slug)
+				return ErrBadgeNotExist{Slug: badge.Slug}
 			}
 			if err := db.Insert(ctx, &UserBadge{
 				BadgeID: badge.ID,
@@ -102,16 +186,24 @@ func RemoveUserBadge(ctx context.Context, u *User, badge *Badge) error {
 	return RemoveUserBadges(ctx, u, []*Badge{badge})
 }
 
-// RemoveUserBadges removes badges from a user.
+// RemoveUserBadges removes specific badges from a user.
 func RemoveUserBadges(ctx context.Context, u *User, badges []*Badge) error {
 	return db.WithTx(ctx, func(ctx context.Context) error {
-		for _, badge := range badges {
-			if _, err := db.GetEngine(ctx).
-				Join("INNER", "badge", "badge.id = `user_badge`.badge_id").
-				Where("`user_badge`.user_id=? AND `badge`.slug=?", u.ID, badge.Slug).
-				Delete(&UserBadge{}); err != nil {
-				return err
-			}
+		slugs := make([]string, len(badges))
+		for i, badge := range badges {
+			slugs[i] = badge.Slug
+		}
+
+		var badgeIDs []int64
+		if err := db.GetEngine(ctx).Table("badge").In("slug", slugs).Cols("id").Find(&badgeIDs); err != nil {
+			return err
+		}
+
+		if _, err := db.GetEngine(ctx).
+			Where("user_id = ?", u.ID).
+			In("badge_id", badgeIDs).
+			Delete(&UserBadge{}); err != nil {
+			return err
 		}
 		return nil
 	})
@@ -122,3 +214,56 @@ func RemoveAllUserBadges(ctx context.Context, u *User) error {
 	_, err := db.GetEngine(ctx).Where("user_id=?", u.ID).Delete(&UserBadge{})
 	return err
 }
+
+// SearchBadgeOptions represents the options when fdin badges
+type SearchBadgeOptions struct {
+	db.ListOptions
+
+	Keyword string
+	Slug    string
+	ID      int64
+	OrderBy db.SearchOrderBy
+	Actor   *User // The user doing the search
+}
+
+func (opts *SearchBadgeOptions) ToConds() builder.Cond {
+	cond := builder.NewCond()
+
+	if opts.Keyword != "" {
+		lowerKeyword := strings.ToLower(opts.Keyword)
+		keywordCond := builder.Or(
+			builder.Like{"badge.slug", lowerKeyword},
+			builder.Like{"badge.description", lowerKeyword},
+			builder.Like{"badge.id", lowerKeyword},
+		)
+		cond = cond.And(keywordCond)
+	}
+
+	if opts.ID > 0 {
+		cond = cond.And(builder.Eq{"badge.id": opts.ID})
+	}
+
+	if len(opts.Slug) > 0 {
+		cond = cond.And(builder.Eq{"badge.slug": opts.Slug})
+	}
+
+	return cond
+}
+
+// SearchBadges returns badges based on the provided SearchBadgeOptions options
+func SearchBadges(ctx context.Context, opts *SearchBadgeOptions) ([]*Badge, int64, error) {
+	return db.FindAndCount[Badge](ctx, opts)
+}
+
+// GetBadgeByID returns a specific badge by ID
+func GetBadgeByID(ctx context.Context, id int64) (*Badge, error) {
+	badge := new(Badge)
+	has, err := db.GetEngine(ctx).ID(id).Get(badge)
+	if err != nil {
+		return nil, err
+	}
+	if !has {
+		return nil, ErrBadgeNotExist{ID: id}
+	}
+	return badge, nil
+}

models/user/badge_test.go

@@ -0,0 +1,61 @@
+// Copyright 2025 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestGetBadgeUsers(t *testing.T) {
+	assert.NoError(t, unittest.PrepareTestDatabase())
+
+	// Create a test badge
+	badge := &user_model.Badge{
+		Slug:        "test-badge",
+		Description: "Test Badge",
+		ImageURL:    "test.png",
+	}
+	assert.NoError(t, user_model.CreateBadge(db.DefaultContext, badge))
+
+	// Create test users and assign badges
+	user1 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+	user2 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+
+	assert.NoError(t, user_model.AddUserBadge(db.DefaultContext, user1, badge))
+	assert.NoError(t, user_model.AddUserBadge(db.DefaultContext, user2, badge))
+
+	// Test getting users with pagination
+	opts := &user_model.GetBadgeUsersOptions{
+		Badge: badge,
+		ListOptions: db.ListOptions{
+			Page:     1,
+			PageSize: 1,
+		},
+	}
+
+	users, count, err := user_model.GetBadgeUsers(db.DefaultContext, opts)
+	assert.NoError(t, err)
+	assert.EqualValues(t, 2, count)
+	assert.Len(t, users, 1)
+
+	// Test second page
+	opts.Page = 2
+	users, count, err = user_model.GetBadgeUsers(db.DefaultContext, opts)
+	assert.NoError(t, err)
+	assert.EqualValues(t, 2, count)
+	assert.Len(t, users, 1)
+
+	// Test with non-existent badge
+	opts.Badge = &user_model.Badge{Slug: "non-existent"}
+	users, count, err = user_model.GetBadgeUsers(db.DefaultContext, opts)
+	assert.NoError(t, err)
+	assert.EqualValues(t, 0, count)
+	assert.Empty(t, users)
+}

modules/validation/binding.go

@@ -27,6 +27,8 @@ const (
 	ErrUsername = "UsernameError"
 	// ErrInvalidGroupTeamMap is returned when a group team mapping is invalid
 	ErrInvalidGroupTeamMap = "InvalidGroupTeamMap"
+	// ErrInvalidSlug is returned when a slug is invalid
+	ErrInvalidSlug = "InvalidSlug"
 )
 
 // AddBindingRules adds additional binding rules
@@ -40,6 +42,7 @@ func AddBindingRules() {
 	addGlobOrRegexPatternRule()
 	addUsernamePatternRule()
 	addValidGroupTeamMapRule()
+	addSlugPatternRule()
 }
 
 func addGitRefNameBindingRule() {
@@ -123,6 +126,22 @@ func addValidSiteURLBindingRule() {
 	})
 }
 
+func addSlugPatternRule() {
+	binding.AddRule(&binding.Rule{
+		IsMatch: func(rule string) bool {
+			return rule == "Slug"
+		},
+		IsValid: func(errs binding.Errors, name string, val any) (bool, binding.Errors) {
+			str := fmt.Sprintf("%v", val)
+			if !IsValidSlug(str) {
+				errs.Add([]string{name}, ErrInvalidSlug, "invalid slug")
+				return false, errs
+			}
+			return true, errs
+		},
+	})
+}
+
 func addGlobPatternRule() {
 	binding.AddRule(&binding.Rule{
 		IsMatch: func(rule string) bool {

modules/validation/helpers.go

@@ -127,3 +127,7 @@ func IsValidUsername(name string) bool {
 	// but it's easier to use positive and negative checks.
 	return validUsernamePattern.MatchString(name) && !invalidUsernamePattern.MatchString(name)
 }
+
+func IsValidSlug(slug string) bool {
+	return IsValidUsername(slug)
+}

modules/web/middleware/binding.go

@@ -138,6 +138,8 @@ func Validate(errs binding.Errors, data map[string]any, f Form, l translation.Lo
 				data["ErrorMsg"] = trName + l.TrString("form.username_error")
 			case validation.ErrInvalidGroupTeamMap:
 				data["ErrorMsg"] = trName + l.TrString("form.invalid_group_team_map_error", errs[0].Message)
+			case validation.ErrInvalidSlug:
+				data["ErrorMsg"] = l.TrString("form.invalid_slug_error")
 			default:
 				msg := errs[0].Classification
 				if msg != "" && errs[0].Message != "" {