def get_recommendations(request):
userID = request.GET.get("userID")
if not (userID and execute_py2neo("is_userID_present", userID)):
return HttpResponse("<b>Error:</b> UserID '" + userID + "' not found")
recoID = request.GET.get("recoID")
if recoID == "1":
execute_py2neo("compute_average_user_rating", userID)
execute_py2neo("compute_user_similarity", userID)
query_result = execute_py2neo("get_recommendations_collaborative",
userID)
elif recoID == "2":
execute_py2neo("compute_average_movie_rating")
query_result = execute_py2neo("get_recommendations_content", userID)
else:
return HttpResponse("Invalid recoID!!")
response_dict = {}
response_dict["title"] = "View recommendations"
response_dict["table_caption"] = "Recommendations for userID '" + str(
userID) + "'"
response_dict["table_headers"] = query_result.columns
response_dict["table_rows"] = query_result
return render(request, "render_table.html", response_dict)
def get_recommendations(request):
userID = request.GET.get("userID")
if not (userID and execute_py2neo("is_userID_present", userID)):
return HttpResponse("<b>Error:</b> UserID '" + userID + "' not found")
recoID = request.GET.get("recoID")
if recoID == "1":
execute_py2neo("compute_average_user_rating", userID)
execute_py2neo("compute_user_similarity", userID)
query_result = execute_py2neo(
"get_recommendations_collaborative", userID)
elif recoID == "2":
execute_py2neo("compute_average_movie_rating")
query_result = execute_py2neo("get_recommendations_content", userID)
else:
return HttpResponse("Invalid recoID!!")
response_dict = {}
response_dict["title"] = "View recommendations"
response_dict[
"table_caption"] = "Recommendations for userID '" + str(userID) + "'"
response_dict["table_headers"] = query_result.columns
response_dict["table_rows"] = query_result
return render(request, "render_table.html", response_dict)
def view_ratings(request):
userID = request.GET.get("userID")
if not (userID and execute_py2neo("is_userID_present", userID)):
return HttpResponse("<b>Error:</b> UserID '" + userID + "' not found")
query_result = execute_py2neo("show_ratings", userID)
response_dict = {}
response_dict["title"] = "View ratings"
response_dict["table_caption"] = "Ratings of userID '" + userID + "'"
response_dict["table_headers"] = query_result.columns
response_dict["table_rows"] = query_result
return render(request, "render_table.html", response_dict)
def view_ratings(request):
userID = request.GET.get("userID")
if not (userID and execute_py2neo("is_userID_present", userID)):
return HttpResponse("<b>Error:</b> UserID '" + userID + "' not found")
query_result = execute_py2neo("show_ratings", userID)
response_dict = {}
response_dict["title"] = "View ratings"
response_dict["table_caption"] = "Ratings of userID '" + userID + "'"
response_dict["table_headers"] = query_result.columns
response_dict["table_rows"] = query_result
return render(request, "render_table.html", response_dict)
def update_rating(request):
userID = request.GET.get("userID")
if not (userID and execute_py2neo("is_userID_present", userID)):
return HttpResponse("<b>Error:</b> UserID '" + userID + "' not found")
movieID = request.GET.get("movieID")
if not(movieID and execute_py2neo("is_movieID_present", movieID)):
return HttpResponse("<b>Error:</b> MovieID '" + movieID + "' not found")
rating = request.GET.get("rating")
if not (int(rating) >= 1 and int(rating) <= 5):
return HttpResponse("<b>Error:</b> Invalid rating value '" + rating + "'")
execute_py2neo("update_rating", userID, movieID, rating)
return HttpResponse("Rating updated!!")
def update_rating(request):
userID = request.GET.get("userID")
if not (userID and execute_py2neo("is_userID_present", userID)):
return HttpResponse("<b>Error:</b> UserID '" + userID + "' not found")
movieID = request.GET.get("movieID")
if not (movieID and execute_py2neo("is_movieID_present", movieID)):
return HttpResponse("<b>Error:</b> MovieID '" + movieID +
"' not found")
rating = request.GET.get("rating")
if not (int(rating) >= 1 and int(rating) <= 5):
return HttpResponse("<b>Error:</b> Invalid rating value '" + rating +
"'")
execute_py2neo("update_rating", userID, movieID, rating)
return HttpResponse("Rating updated!!")
def list_movies(request):
query_result = execute_py2neo("show_movies")
response_dict = {}
response_dict["title"] = "List of movies"
response_dict["table_caption"] = "List of movies"
response_dict["table_headers"] = query_result.columns
response_dict["table_rows"] = query_result
return render(request, "render_table.html", response_dict)
def list_movies(request):
query_result = execute_py2neo("show_movies")
response_dict = {}
response_dict["title"] = "List of movies"
response_dict["table_caption"] = "List of movies"
response_dict["table_headers"] = query_result.columns
response_dict["table_rows"] = query_result
return render(request, "render_table.html", response_dict)
