package models import ( "time" "github.com/google/uuid" ) type Category struct { ID uuid.UUID OrganizationID uuid.UUID Name string Description *string ImageURL *string SortOrder int IsActive bool CreatedAt time.Time UpdatedAt time.Time } type CreateCategoryRequest struct { OrganizationID uuid.UUID `validate:"required"` Name string `validate:"required,min=1,max=255"` Description *string `validate:"omitempty,max=1000"` ImageURL *string `validate:"omitempty,url"` SortOrder int `validate:"min=0"` } type UpdateCategoryRequest struct { Name *string `validate:"omitempty,min=1,max=255"` Description *string `validate:"omitempty,max=1000"` ImageURL *string `validate:"omitempty,url"` SortOrder *int `validate:"omitempty,min=0"` IsActive *bool } type CategoryResponse struct { ID uuid.UUID OrganizationID uuid.UUID Name string Description *string ImageURL *string SortOrder int IsActive bool CreatedAt time.Time UpdatedAt time.Time }