я пытался реализовать сессии обмена опытом и рейтинги с отзывами. Вот что у меня в итоге получилось. Является ли мое решение достаточным для полного функционирования? Что нужно добавить, что нужно исправить в соответствии с ТЗ? Предоставь также полностью работающую систему рейтинга и отзывов. Можно ли сделать так, чтобы рейтинг отображался вместе с соответствующим ему автором или сессией?

session_controller.go:
package controllers

import (
        "net/http"

        "github.com/gin-gonic/gin"
        "github.com/google/uuid"
        "github.com/BuzzLyutic/Skill-sharing-web-platform/models"
        "github.com/BuzzLyutic/Skill-sharing-web-platform/repositories"
)

// SessionController handles session-related HTTP requests
type SessionController struct {
        repo *repositories.SessionRepository
}

// NewSessionController creates a new session controller
func NewSessionController(repo *repositories.SessionRepository) *SessionController {
        return &SessionController{repo: repo}
}

// GetAll handles GET /sessions
func (c *SessionController) GetAll(ctx *gin.Context) {
        sessions, err := c.repo.GetAll()
        if err != nil {
                ctx.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
                return
        }
        ctx.JSON(http.StatusOK, sessions)
}

// GetByID handles GET /sessions/:id
func (c *SessionController) GetByID(ctx *gin.Context) {
        idStr := ctx.Param("id")
        id, err := uuid.Parse(idStr)
        if err != nil {
                ctx.JSON(http.StatusBadRequest, gin.H{"error": "Invalid session ID format"})
                return
        }

        session, err := c.repo.GetByID(id)
        if err != nil {
                ctx.JSON(http.StatusNotFound, gin.H{"error": "Session not found"})
                return
        }

        ctx.JSON(http.StatusOK, session)
}

// Create handles POST /sessions
func (c *SessionController) Create(ctx *gin.Context) {
        var req models.SessionRequest
        if err := ctx.ShouldBindJSON(&req); err != nil {
                ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
                return
        }

        // For demo purposes - in a real app, get the user ID from auth context
        creatorID, err := uuid.Parse(ctx.Query("creator_id"))
        if err != nil {
                ctx.JSON(http.StatusBadRequest, gin.H{"error": "Invalid creator ID"})
                return
        }

        session, err := c.repo.Create(creatorID, req)
        if err != nil {
                ctx.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
                return
        }

        ctx.JSON(http.StatusCreated, session)
}

// Update handles PUT /sessions/:id
func (c *SessionController) Update(ctx *gin.Context) {
        idStr := ctx.Param("id")
        id, err := uuid.Parse(idStr)
        if err != nil {
                ctx.JSON(http.StatusBadRequest, gin.H{"error": "Invalid session ID format"})
                return
        }

        var req models.SessionRequest
        if err := ctx.ShouldBindJSON(&req); err != nil {
                ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
                return
        }

        session, err := c.repo.Update(id, req)
        if err != nil {
                ctx.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
                return
        }

        ctx.JSON(http.StatusOK, session)
}

// Delete handles DELETE /sessions/:id
func (c *SessionController) Delete(ctx *gin.Context) {
        idStr := ctx.Param("id")
        id, err := uuid.Parse(idStr)
        if err != nil {
                ctx.JSON(http.StatusBadRequest, gin.H{"error": "Invalid session ID format"})
                return
        }

        if err := c.repo.Delete(id); err != nil {
                ctx.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
                return
        }

        ctx.JSON(http.StatusOK, gin.H{"message": "Session deleted successfully"})
}

// GetParticipants handles GET /sessions/:id/participants
func (c *SessionController) GetParticipants(ctx *gin.Context) {
        idStr := ctx.Param("id")
        id, err := uuid.Parse(idStr)
        if err != nil {
                ctx.JSON(http.StatusBadRequest, gin.H{"error": "Invalid session ID format"})
                return
        }

        participants, err := c.repo.GetParticipants(id)
        if err != nil {
                ctx.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
                return
        }

        ctx.JSON(http.StatusOK, participants)
}

session_repository.go:
package repositories

import (
	"github.com/BuzzLyutic/Skill-sharing-web-platform/models"
	"github.com/google/uuid"
	"github.com/jmoiron/sqlx"
)

// SessionRepository handles database operations for sessions
type SessionRepository struct {
	db *sqlx.DB
}

// NewSessionRepository creates a new session repository
func NewSessionRepository(db *sqlx.DB) *SessionRepository {
	return &SessionRepository{db: db}
}

// GetAll retrieves all sessions
func (r *SessionRepository) GetAll() ([]models.Session, error) {
	sessions := []models.Session{}
	query := `SELECT * FROM sessions ORDER BY date_time ASC`
	err := r.db.Select(&sessions, query)
	return sessions, err
}

// GetByID retrieves a session by ID
func (r *SessionRepository) GetByID(id uuid.UUID) (models.Session, error) {
	var session models.Session
	query := `SELECT * FROM sessions WHERE id = $1`
	err := r.db.Get(&session, query, id)
	return session, err
}

// Create creates a new session
func (r *SessionRepository) Create(creatorID uuid.UUID, session models.SessionRequest) (models.Session, error) {
	var createdSession models.Session
	query := `
                INSERT INTO sessions (title, description, category, date_time, location, max_participants, creator_id)
                VALUES ($1, $2, $3, $4, $5, $6, $7)
                RETURNING *
        `
	err := r.db.Get(&createdSession, query,
		session.Title, session.Description, session.Category,
		session.DateTime, session.Location, session.MaxParticipants, creatorID)

	return createdSession, err
}

// Update updates an existing session
func (r *SessionRepository) Update(id uuid.UUID, session models.SessionRequest) (models.Session, error) {
	var updatedSession models.Session
	query := `
                UPDATE sessions
                SET title = $2, description = $3, category = $4, date_time = $5, location = $6, max_participants = $7
                WHERE id = $1
                RETURNING *
        `
	err := r.db.Get(&updatedSession, query,
		id, session.Title, session.Description, session.Category,
		session.DateTime, session.Location, session.MaxParticipants)

	return updatedSession, err
}

// Delete deletes a session
func (r *SessionRepository) Delete(id uuid.UUID) error {
	query := `DELETE FROM sessions WHERE id = $1`
	_, err := r.db.Exec(query, id)
	return err
}

// GetParticipants gets all participants of a session
func (r *SessionRepository) GetParticipants(sessionID uuid.UUID) ([]models.User, error) {
	users := []models.User{}
	query := `
                SELECT u.*
                FROM users u
                JOIN session_participants sp ON u.id = sp.user_id
                WHERE sp.session_id = $1
        `
	err := r.db.Select(&users, query, sessionID)
	return users, err
}