Add an user management page for admins

internal/query/queryusers.go

@@ -0,0 +1,33 @@
+package query
+
+import (
+	"git.artlef.fr/bibliomane/internal/dto"
+	"git.artlef.fr/bibliomane/internal/model"
+	"gorm.io/gorm"
+)
+
+func FetchAllUsers(db *gorm.DB, limit int, offset int) ([]dto.UserGet, error) {
+	var books []dto.UserGet
+	query := fetchAllUserQuery(db)
+	query = query.Limit(limit)
+	query = query.Offset(offset)
+	query = query.Order("users.id DESC")
+	res := query.Find(&books)
+	return books, res.Error
+}
+
+func FetchAllUsersCount(db *gorm.DB) (int64, error) {
+	var count int64
+	query := fetchAllUserQuery(db)
+	res := query.Count(&count)
+	return count, res.Error
+}
+
+func fetchAllUserQuery(db *gorm.DB) *gorm.DB {
+	query := db.Model(&model.User{})
+	query = query.Select("users.id, users.name, users.admin, count(distinct books.id) as added_books_count, count(distinct user_books.id) as user_books_count")
+	query = query.Joins("left join books on (books.added_by_id = users.id)")
+	query = query.Joins("left join user_books on user_books.user_id = users.id")
+	query = query.Group("users.id, users.name")
+	return query
+}