/**
* Store a newly created resource in storage.
*
* @return Response
*/
public function store(MecanexUserRequest $request)
{
// $thematic_area=$request->interest;
// dd($thematic_area);
$mecanexuser = MecanexUser::create($request->all());
$username = $request->username;
$user = User::where('username', $username)->get()->first();
// create records in table users_terms-scores once a mecanex user has been created
$terms = Term::all();
$total_terms = $terms->count();
foreach ($terms as $term) {
$mecanexuser->term()->sync([$term->id => ['user_score' => 0]], false);
$mecanexuser->profilescore()->sync([$term->id => ['profile_score' => 0]], false);
}
//create record in table mecanex_user_term_home_term_neighbor once a mecanex user has been created
for ($i = 1; $i <= $total_terms; $i++) {
for ($j = $i + 1; $j <= $total_terms; $j++) {
$mec_matrix = new MecanexUserTermHomeTermNeighbour();
$mec_matrix->mecanex_user_id = $mecanexuser->id;
$mec_matrix->term_home_id = $i;
$mec_matrix->term_neighbor_id = $j;
$mec_matrix->link_score = 0.1;
$mec_matrix->save();
}
}
//the following is only needed for linking an existing authorized user (users_table) with a new mecanex user provided they have the same username
if (empty($user)) {
$response = array('message' => 'Store successful');
} else {
$mecanexuser->user_id = $user->id;
$mecanexuser->save();
$response = array('message' => 'Store successful');
}
return response($response, 201)->header('Content-Type', 'application/json');
}
/**
* Update the specified resource in storage.
*
* @param int $id
* @return Response
*/
public function update(InterestRequest $request, $username)
{
$interests = $request->except('_method');
$user = MecanexUser::where('username', $username)->get()->first();
if (empty($user)) {
$response = ["error" => "User doesn`t exist"];
$statusCode = 404;
} elseif (count($user->interest) == 0) {
$response = ["message" => "User has not set any interests, To create interests, try store"];
$statusCode = 404;
} else {
//check if what sends is correct or else it crushes
//updates interests and user scores
$key_values = array();
foreach ($interests as $key => $value) {
$interest = Interest::where('short_name', $key)->get(array('id'))->first();
$key_values[$interest->id] = $value;
$user->interest()->sync([$interest->id => ['interest_score' => $value]], false);
$term = Term::where('term', $key)->firstOrFail();
$value = $value / 5;
$user->term()->sync([$term->id => ['user_score' => $value]], false);
}
//there must be a more clever way to do this (foreach maybe)
//created 2 arrays one with the term ids ($term_ids) and the other with the scores ($term_scores)
$terms = Term::get(array('id'));
$all_terms = [];
foreach ($terms as $term) {
array_push($all_terms, $term->id);
}
$all_terms_length = count($all_terms);
ksort($key_values);
$term_ids = array_keys($key_values);
$term_ids_length = count($term_ids);
//update adjacency matrix
for ($i = 0; $i <= $term_ids_length - 1; $i++) {
for ($j = 0; $j <= $all_terms_length - 1; $j++) {
if ($term_ids[$i] == $all_terms[$j]) {
continue;
} elseif ($term_ids[$i] > $all_terms[$j]) {
$temp_user_matrix = MecanexUserTermHomeTermNeighbour::where('mecanex_user_id', $user->id)->where('term_home_id', $all_terms[$j])->where('term_neighbor_id', $term_ids[$i])->get()->first();
$temp_user = $user->term->find($all_terms[$j]);
$user_term_score_a = $temp_user->pivot->user_score;
$temp_user = $user->term->find($term_ids[$i]);
$user_term_score_b = $temp_user->pivot->user_score;
$new_score = $user_term_score_b * $user_term_score_a;
// }
} else {
$temp_user_matrix = MecanexUserTermHomeTermNeighbour::where('mecanex_user_id', $user->id)->where('term_home_id', $term_ids[$i])->where('term_neighbor_id', $all_terms[$j])->get()->first();
$temp_user = $user->term->find($all_terms[$j]);
$user_term_score_a = $temp_user->pivot->user_score;
$temp_user = $user->term->find($term_ids[$i]);
$user_term_score_b = $temp_user->pivot->user_score;
$new_score = $user_term_score_b * $user_term_score_a;
}
$temp_user_matrix->link_score = $new_score;
$temp_user_matrix->save();
}
}
//update profile
for ($j = 1; $j <= $all_terms_length; $j++) {
$profile_score = 0;
for ($i = 1; $i <= $all_terms_length; $i++) {
$temp_user = $user->term->find($i);
$user_term_score = $temp_user->pivot->user_score;
//get score of user
if ($i == $j) {
$link_score = 0;
} elseif ($i > $j) {
$temp_user_matrix = MecanexUserTermHomeTermNeighbour::where('mecanex_user_id', $user->id)->where('term_home_id', $j)->where('term_neighbor_id', $i)->get()->first();
$link_score = $temp_user_matrix->link_score;
} else {
$temp_user_matrix = MecanexUserTermHomeTermNeighbour::where('mecanex_user_id', $user->id)->where('term_home_id', $i)->where('term_neighbor_id', $j)->get()->first();
$link_score = $temp_user_matrix->link_score;
}
$profile_score = $profile_score + $user_term_score * $link_score;
}
$user->profilescore()->sync([$j => ['profile_score' => $profile_score]], false);
}
$response = ["message" => "User Interests were saved"];
$statusCode = 201;
}
return response($response, $statusCode)->header('Content-Type', 'application/json');
}
/**
* Update the specified resource in storage.
*
* @param int $id
* @return Response
*/
public function update(Request $request)
{
//
//get the input
$arts = $request->arts;
$disasters = $request->disasters;
$education = $request->education;
$environment = $request->environment;
$health = $request->health;
$lifestyle = $request->lifestyle;
$media = $request->media;
$holidays = $request->holidays;
$politics = $request->politics;
$religion = $request->religion;
$society = $request->society;
$transportation = $request->transportation;
$wars = $request->wars;
$work = $request->work;
//delete all records of that user in pivot table
$mecanex_user = Auth::user()->mecanex_user;
$mecanex_user->interest()->detach();
//store input in pivot table
$mecanex_user->interest()->sync([1 => ['interest_score' => $arts], 2 => ['interest_score' => $disasters], 3 => ['interest_score' => $education], 4 => ['interest_score' => $environment], 5 => ['interest_score' => $health], 6 => ['interest_score' => $lifestyle], 7 => ['interest_score' => $media], 8 => ['interest_score' => $holidays], 9 => ['interest_score' => $politics], 10 => ['interest_score' => $religion], 11 => ['interest_score' => $society], 12 => ['interest_score' => $transportation], 13 => ['interest_score' => $wars], 14 => ['interest_score' => $work]]);
//$interests=Interest::all(array('short_name'));
$user_interests = $mecanex_user->interest;
$term_ids = [];
foreach ($user_interests as $user_interest) {
$short_name = $user_interest->short_name;
array_push($term_ids, $user_interest->id);
$term = Term::where('term', $short_name)->firstOrFail();
$mecanex_user->term()->sync([$term->id => ['user_score' => $user_interest->pivot->interest_score / 5]], false);
//normalization
}
$terms = Term::all()->count();
for ($i = 0; $i <= $terms - 1; $i++) {
for ($j = $i + 1; $j <= $terms - 1; $j++) {
$temp_user_matrix = MecanexUserTermHomeTermNeighbour::where('mecanex_user_id', $mecanex_user->id)->where('term_home_id', $term_ids[$i])->where('term_neighbor_id', $term_ids[$j])->get()->first();
$temp_user = $mecanex_user->term->find($term_ids[$i]);
$user_term_score_a = $temp_user->pivot->user_score;
$temp_user = $mecanex_user->term->find($term_ids[$j]);
$user_term_score_b = $temp_user->pivot->user_score;
$new_score = $user_term_score_a * $user_term_score_b;
$temp_user_matrix->link_score = $new_score;
$temp_user_matrix->save();
}
}
for ($j = 1; $j <= $terms; $j++) {
$profile_score = 0;
for ($i = 1; $i <= $terms; $i++) {
$temp_user = $mecanex_user->term->find($i);
$user_term_score = $temp_user->pivot->user_score;
//get score of user
if ($i == $j) {
$link_score = 0;
} elseif ($i > $j) {
$temp_user_matrix = MecanexUserTermHomeTermNeighbour::where('mecanex_user_id', $mecanex_user->id)->where('term_home_id', $j)->where('term_neighbor_id', $i)->get()->first();
$link_score = $temp_user_matrix->link_score;
} else {
$temp_user_matrix = MecanexUserTermHomeTermNeighbour::where('mecanex_user_id', $mecanex_user->id)->where('term_home_id', $i)->where('term_neighbor_id', $j)->get()->first();
$link_score = $temp_user_matrix->link_score;
}
$profile_score = $profile_score + $user_term_score * $link_score;
}
$mecanex_user->profilescore()->sync([$j => ['profile_score' => $profile_score]], false);
}
return Redirect::route('home')->with('message', 'Your interests were updated');
}
/**
* Store a newly created resource in storage.
*
* @return Response
*/
public function store(CreateProfileRequest $request)
{
//validation first
$request->all();
$username = Auth::user()->username;
$name = Input::get('name');
$surname = Input::get('surname');
$gender_id = Input::get('gender_id');
$age_id = Input::get('age_id');
$country_id = Input::get('country_id');
$occupation_id = Input::get('occupation_id');
$education_id = Input::get('education_id');
//$facebook=Input::get('facebook');
//$twitter=Input::get('twitter');
$mecanex_user = new MecanexUser(['username' => $username, 'name' => $name, 'surname' => $surname, 'gender_id' => $gender_id, 'age_id' => $age_id, 'education_id' => $education_id, 'occupation_id' => $occupation_id, 'country_id' => $country_id]);
$user = User::find(Auth::user()->id);
$mecanex_user = $user->profile()->save($mecanex_user);
//$mecanex_user->save();
// create records in table users_terms-scores once a mecanex user has been created
$terms = Term::all();
$total_terms = $terms->count();
foreach ($terms as $term) {
$mecanex_user->term()->sync([$term->id => ['user_score' => 0]], false);
$mecanex_user->profilescore()->sync([$term->id => ['profile_score' => 0]], false);
}
//create record in table mecanex_user_term_home_term_neighbor once a mecanex user has been created
for ($i = 1; $i <= $total_terms; $i++) {
for ($j = $i + 1; $j <= $total_terms; $j++) {
$mec_matrix = new MecanexUserTermHomeTermNeighbour();
$mec_matrix->mecanex_user_id = $mecanex_user->id;
$mec_matrix->term_home_id = $i;
$mec_matrix->term_neighbor_id = $j;
$mec_matrix->link_score = 0.05;
$mec_matrix->save();
}
}
return view('user.profile')->with('message', 'You can now state your interests');
//
}
public function explicitrf_function(SignalsRequest $request)
{
$username = $request->username;
$device = $request->device_id;
$video_id = $request->video_id;
$action_type = $request->action;
$explicit_rf = $request->value;
//check if $request->score==-1 or 0 or 1
$record_exists = UserAction::where('username', $username)->where('video_id', $video_id)->where('action', $action_type)->first();
if (empty($record_exists)) {
$user_action = new UserAction(['username' => $username, 'device_id' => $device, 'video_id' => $video_id, 'explicit_rf' => $explicit_rf, 'action' => $action_type]);
$user_action->save();
$get_importance = Action::where('id', $request->action)->first();
$importance = $get_importance->importance;
$user_action->update(array('weight' => $explicit_rf, 'importance' => $importance));
} else {
$record_exists->update(array('explicit_rf' => $explicit_rf, 'weight' => $explicit_rf));
}
//store in the dcgs table - only used for the online experiments
$mecanex_user = MecanexUser::where('username', $username)->first();
$dcg_record = Dcg::where('mecanex_user_id', $mecanex_user->id)->where('video_id', $video_id);
$dcg_record->update(array('explicit_rf' => $explicit_rf));
//////////////calculate ku///////////////////////
// number of all enrichments
$video = Video::where('video_id', $video_id)->first();
$num_all_enrichments = DB::select(DB::raw('SELECT COUNT(*) as num FROM enrichments_videos_time WHERE video_id=?'), [$video->id]);
$num_all_enrichments = $num_all_enrichments[0]->num;
// create list with clicked enrichments
$get_action_id = Action::where('action', 'click enrichment')->first();
$action_id = $get_action_id->id;
$enrichment_click_ids = UserAction::where('username', $username)->where('video_id', $video_id)->where('action', $action_id)->get(array('content_id'));
$num_clicked_enrichments = count($enrichment_click_ids);
// replace all database entries with one with the appropriate weight (so that the calculation can be easily done).
// The information for what enrichments where clicked is now in the $enrichment_click_ids variable
if ($num_clicked_enrichments != 0) {
DB::table('user_actions')->where('username', $username)->where('video_id', $video_id)->where('action', $action_id)->delete();
$user_action = new UserAction(['username' => $username, 'device_id' => $device, 'video_id' => $video_id, 'action' => $action_id, 'content_id' => '1']);
$user_action->save();
$get_importance = Action::where('id', $action_id)->first();
$importance = $get_importance->importance;
$user_action->update(array('weight' => $num_clicked_enrichments / $num_all_enrichments, 'importance' => $importance));
}
// create list with shared enrichments
$get_action_id = Action::where('action', 'share')->first();
$action_id = $get_action_id->id;
$enrichment_share_ids = UserAction::where('username', $username)->where('video_id', $video_id)->where('action', $action_id)->get(array('content_id'));
$num_shared_enrichments = count($enrichment_share_ids);
// replace all database entries with one with the appropriate weight (so that the calculation can be easily done).
// The information for what enrichments where clicked is now in the $enrichment_shared_ids variable
if ($num_shared_enrichments != 0) {
DB::table('user_actions')->where('username', $username)->where('video_id', $video_id)->where('action', $action_id)->delete();
$user_action = new UserAction(['username' => $username, 'device_id' => $device, 'video_id' => $video_id, 'action' => $action_id, 'content_id' => '1']);
$user_action->save();
$get_importance = Action::where('id', $action_id)->first();
$importance = $get_importance->importance;
$user_action->update(array('weight' => $num_shared_enrichments / $num_all_enrichments, 'importance' => $importance));
}
$k_nominator = UserAction::where('username', $username)->where('video_id', $video_id)->groupBy('username')->get(['username', DB::raw('SUM(importance*weight) as total_score')])->first();
$query = "SELECT SUM(t1.importance ) AS total FROM (SELECT DISTINCT action, importance FROM user_actions WHERE username=:username AND video_id=:videoid) AS t1 ";
$k_denominator = DB::select(DB::raw($query), array('username' => $username, 'videoid' => $video_id));
//returns array
$k = $k_nominator->total_score / $k_denominator[0]->total;
//to [0] gia na prospelasei to 1o stoixeio tou array pou einai to object
/////////////////////////////update weights and update profile//////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////Retrieve Terms/////////////////////////////
//////////////retrieve terms for given video//////////////
$video = Video::where('video_id', $request->video_id)->first();
$threshold = 0;
//need to appropriate set
$results = $video->term()->where('video_score', '>', $threshold)->get(array('term_id'));
$video_term_list = [];
foreach ($results as $result) {
//retrieve the terms that will be updated
array_push($video_term_list, $result->term_id);
}
sort($video_term_list);
///////////retrieve terms for the clicked enrichments//////////////
// $get_actionid = Action::where('action', 'click enrichment')->first();
// $action_id = $get_actionid->id;
// $enrichment_ids = UserAction::where('username', $username)->where('video_id', $video_id)->where('action', $action_id)->get(array('content_id'));
$enrichment_term_list = [];
// foreach ($enrichment_ids as $enrichment_id)
// {
//
// //call the api and get some terms
// //or emulate enrichment_terms
// //$results=Enrichment::where('id',$enrichment_id)->get(array('term_id'))
// foreach($results as $result)
// {
// array_push($enrichment_term_list,$result->term_id);
// }
//
// }
//$enrichment_terms=array_unique($enrichment_term_list);
$enrichment_terms = [3, 4, 7];
//retrieve terms for the clicked ads
$ads_terms = [4, 8, 10];
///Final term_list - no need since I will update in three steps
// $term_list=array_merge($video_term_list,$enrichment_terms,$ads_terms);
// $terms=array_unique($term_list);
////////////////update weights of profile//////////////////////////
$term_scores = [];
//save all scores to get the max
$user = MecanexUser::where('username', $username)->get()->first();
$video = Video::where('video_id', $video_id)->get()->first();
$link_user = MecanexUserTermHomeTermNeighbour::where('mecanex_user_id', $user->id)->get()->first();
//return $video;
//return $link_user;
//update based on video_terms
//return $video_term_list;
foreach ($video_term_list as $video_term_id) {
$temp_user = $user->term->find($video_term_id);
$user_term_score = $temp_user->pivot->user_score;
//get score of user
$temp_video = $video->term->find($video_term_id);
$video_term_score = $temp_video->pivot->video_score;
//get score of video
$final_score = $k * (0.8 * $video_term_score);
foreach ($enrichment_click_ids as $enrichment_click_id) {
$id = $enrichment_click_id->content_id;
$enrichment = Enrichment::where('enrichment_id', $id)->get()->first();
$temp_enrichment = $enrichment->term->find($video_term_id);
$enrichment_term_score = $temp_enrichment->pivot->enrichment_score;
$final_score = $final_score + $k * (0.1 / $num_clicked_enrichments * $enrichment_term_score);
}
foreach ($enrichment_share_ids as $enrichment_share_id) {
$id = $enrichment_share_id->content_id;
$enrichment = Enrichment::where('enrichment_id', $id)->get()->first();
$temp_enrichment = $enrichment->term->find($video_term_id);
$enrichment_term_score = $temp_enrichment->pivot->enrichment_score;
$final_score = $final_score + $k * (0.1 / $num_shared_enrichments * $enrichment_term_score);
}
//update score
$new_score = $user_term_score + $final_score;
//ok
$new_score = max($new_score, 0);
// don't let negative values
array_push($term_scores, $new_score);
// //store score
$user->term()->sync([$video_term_id => ['user_score' => $new_score]], false);
}
//return $term_scores;
// update matrix
$number_video_terms = count($video_term_list);
$link_term_scores = [];
//save all scores to get the max
for ($i = 0; $i <= $number_video_terms - 1; $i++) {
for ($j = $i + 1; $j < $number_video_terms; $j++) {
$temp_user_matrix = MecanexUserTermHomeTermNeighbour::where('mecanex_user_id', $user->id)->where('term_home_id', $video_term_list[$i])->where('term_neighbor_id', $video_term_list[$j])->get()->first();
//return $temp_user_matrix;
$temp_video = $video->term->find($video_term_list[$i]);
$video_term_score1 = $temp_video->pivot->video_score;
$temp_video = $video->term->find($video_term_list[$j]);
$video_term_score2 = $temp_video->pivot->video_score;
$final_score = $k * (0.8 * $video_term_score1 * $video_term_score2);
foreach ($enrichment_click_ids as $enrichment_click_id) {
$id = $enrichment_click_id->content_id;
$enrichment = Enrichment::where('enrichment_id', $id)->get()->first();
$temp_enrichment = $enrichment->term->find($video_term_list[$i]);
$enrichment_term_score1 = $temp_enrichment->pivot->enrichment_score;
$temp_enrichment = $enrichment->term->find($video_term_list[$j]);
$enrichment_term_score2 = $temp_enrichment->pivot->enrichment_score;
$final_score = $final_score + $k * (0.1 / $num_clicked_enrichments * $enrichment_term_score1 * $enrichment_term_score2);
}
foreach ($enrichment_share_ids as $enrichment_share_id) {
$id = $enrichment_share_id->content_id;
$enrichment = Enrichment::where('enrichment_id', $id)->get()->first();
$temp_enrichment = $enrichment->term->find($video_term_list[$i]);
$enrichment_term_score1 = $temp_enrichment->pivot->enrichment_score;
$temp_enrichment = $enrichment->term->find($video_term_list[$j]);
$enrichment_term_score2 = $temp_enrichment->pivot->enrichment_score;
$final_score = $final_score + $k * (0.1 / $num_shared_enrichments * $enrichment_term_score1 * $enrichment_term_score2);
}
$new_score = $temp_user_matrix->link_score + $final_score;
$new_score = max($new_score, 0);
// don't let negative values
array_push($link_term_scores, $new_score);
$temp_user_matrix->link_score = $new_score;
$temp_user_matrix->save();
}
}
//same should be done for enrichments and ads
//find max value and divide term values
$max_term_value = max(max($term_scores), 1);
if ($link_term_scores != []) {
$max_link_term_value = max(max($link_term_scores), 1);
}
foreach ($video_term_list as $video_term_id) {
$temp_user = $user->term->find($video_term_id);
$user_term_score = $temp_user->pivot->user_score;
//get score of user
$temp_video = $video->term->find($video_term_id);
$video_term_score = $temp_video->pivot->video_score;
//get score of video
//update score
$new_score = $user_term_score / $max_term_value;
//ok
//store score
$user->term()->sync([$video_term_id => ['user_score' => $new_score]], false);
}
for ($i = 0; $i <= $number_video_terms - 1; $i++) {
for ($j = $i + 1; $j < $number_video_terms; $j++) {
$temp_user_matrix = MecanexUserTermHomeTermNeighbour::where('mecanex_user_id', $user->id)->where('term_home_id', $video_term_list[$i])->where('term_neighbor_id', $video_term_list[$j])->get()->first();
$old_score = $temp_user_matrix->link_score;
$new_score = $old_score / $max_link_term_value;
$temp_user_matrix->link_score = $new_score;
$temp_user_matrix->save();
}
}
//calculate profile
$terms = Term::all()->count();
for ($j = 1; $j <= $terms; $j++) {
$profile_score = 0;
for ($i = 1; $i <= $terms; $i++) {
$temp_user = $user->term->find($i);
$user_term_score = $temp_user->pivot->user_score;
//get score of user
if ($i == $j) {
$link_score = 0;
} elseif ($i > $j) {
$temp_user_matrix = MecanexUserTermHomeTermNeighbour::where('mecanex_user_id', $user->id)->where('term_home_id', $j)->where('term_neighbor_id', $i)->get()->first();
$link_score = $temp_user_matrix->link_score;
} else {
$temp_user_matrix = MecanexUserTermHomeTermNeighbour::where('mecanex_user_id', $user->id)->where('term_home_id', $i)->where('term_neighbor_id', $j)->get()->first();
$link_score = $temp_user_matrix->link_score;
}
$profile_score = $profile_score + $user_term_score * $link_score;
}
$user->profilescore()->sync([$j => ['profile_score' => $profile_score]], false);
}
DB::table('user_actions')->where('username', $username)->where('video_id', $video_id)->delete();
$response = ["message" => 'RF Saved'];
$statusCode = 200;
return response($response, $statusCode)->header('Content-Type', 'application/json');
}
/**
* Display a listing of the resource.
*
* @return Response
*/
public function login(Request $request, SammyK\LaravelFacebookSdk\LaravelFacebookSdk $fb)
{
//test if token for FB login is enough
$token = $request->token;
// return $token;
// does not work since $token is string but should be token
// if (! $token->isLongLived()) {
// // OAuth 2.0 client handler
// $oauth_client = $fb->getOAuth2Client();
//
// // Extend the access token.
// try {
// $token = $oauth_client->getLongLivedAccessToken($token);
// } catch (Facebook\Exceptions\FacebookSDKException $e) {
// dd($e->getMessage());
// }
// }
//this is for not include $token in the get calls
$fb->setDefaultAccessToken($token);
// Get basic info on the user from Facebook.
try {
$response = $fb->get('/me?fields=id,email');
} catch (Facebook\Exceptions\FacebookSDKException $e) {
dd($e->getMessage());
}
try {
$profileresponse = $fb->get('/me?fields=id,name,gender');
} catch (Facebook\Exceptions\FacebookSDKException $e) {
dd($e->getMessage());
}
// Convert the response to a `Facebook/GraphNodes/GraphUser` collection
$facebook_user = $response->getGraphUser();
$mecanex_user = $profileresponse->getGraphUser();
$existing_mecanex_user = MecanexUser::where('email', '=', $facebook_user["email"])->get()->first();
$existing_user = User::where('email', '=', $facebook_user["email"])->get()->first();
// Create the user if it does not exist or update the existing entry.
// This will only work if you've added the SyncableGraphNodeTrait to your User model.
if ($existing_user == null) {
$facebook_user["username"] = "******" . $facebook_user["id"];
$user = User::createOrUpdateGraphNode($facebook_user);
} else {
$facebook_user["username"] = $existing_user->username;
$user = $existing_user;
$user->facebook_user_id = $facebook_user["id"];
$user->save();
}
//store profile data in mecanex_users table
$id = $user->id;
$facebook_id = $user->facebook_user_id;
if ($existing_mecanex_user == null) {
$username = "******" . $user->facebook_user_id;
} else {
$username = $existing_mecanex_user->username;
}
$email = $user->email;
$fullname = $mecanex_user->getName();
$fullname = explode(" ", $fullname);
$name = $fullname[0];
$surname = $fullname[1];
$gender = $mecanex_user->getGender();
if ($gender == 'female') {
$gender_id = 2;
} else {
$gender_id = 1;
}
$fbuser = MecanexUser::firstOrNew(array('email' => $email));
$fbuser->username = $username;
$fbuser->user_id = $id;
$fbuser->facebook_user_id = $facebook_id;
$fbuser->gender_id = $gender_id;
$fbuser->name = $name;
$fbuser->surname = $surname;
$fbuser->email = $email;
$fbuser->save();
// Log the user into Laravel
Auth::login($user);
// create records in table users_terms-scores once a mecanex user has been created
if ($existing_mecanex_user == null) {
$terms = Term::all();
$total_terms = count($terms);
foreach ($terms as $term) {
$fbuser->term()->sync([$term->id => ['user_score' => 0]], false);
$fbuser->profilescore()->sync([$term->id => ['profile_score' => 0]], false);
}
for ($i = 1; $i <= $total_terms; $i++) {
for ($j = $i + 1; $j <= $total_terms; $j++) {
$mec_matrix = new MecanexUserTermHomeTermNeighbour();
$mec_matrix->mecanex_user_id = $fbuser->id;
$mec_matrix->term_home_id = $i;
$mec_matrix->term_neighbor_id = $j;
$mec_matrix->link_score = 0.05;
$mec_matrix->save();
}
}
}
$response = ['username' => $username, 'message' => 'User was successfully logged in'];
$statusCode = 201;
return response($response, $statusCode)->header('Content-Type', 'application/json');
}
public function callback(SammyK\LaravelFacebookSdk\LaravelFacebookSdk $fb)
{
// $token = $fb->getAccessTokenFromRedirect();
// dd($token);
// Obtain an access token.
try {
$token = $fb->getAccessTokenFromRedirect();
} catch (Facebook\Exceptions\FacebookSDKException $e) {
dd($e->getMessage());
}
// Access token will be null if the user denied the request
// or if someone just hit this URL outside of the OAuth flow.
if (!$token) {
// Get the redirect helper
$helper = $fb->getRedirectLoginHelper();
if (!$helper->getError()) {
abort(403, 'Unauthorized action.');
}
// User denied the request
// echo '<p>Error: ' . $helper->getError();
// echo '<p>Code: ' . $helper->getErrorCode();
// echo '<p>Reason: ' . $helper->getErrorReason();
// echo '<p>Description: ' . $helper->getErrorDescription();
// exit ;
dd($helper->getError(), $helper->getErrorCode(), $helper->getErrorReason(), $helper->getErrorDescription());
}
$fb->setDefaultAccessToken($token);
if (!$token->isLongLived()) {
// OAuth 2.0 client handler
$oauth_client = $fb->getOAuth2Client();
// Extend the access token.
try {
$token = $oauth_client->getLongLivedAccessToken($token);
} catch (Facebook\Exceptions\FacebookSDKException $e) {
dd($e->getMessage());
}
}
//this is for not include $token in the get calls
$fb->setDefaultAccessToken($token);
// Get basic info on the user from Facebook.
try {
$response = $fb->get('/me?fields=id,email');
} catch (Facebook\Exceptions\FacebookSDKException $e) {
dd($e->getMessage());
}
try {
$profileresponse = $fb->get('/me?fields=id,name,gender');
} catch (Facebook\Exceptions\FacebookSDKException $e) {
dd($e->getMessage());
}
// Convert the response to a `Facebook/GraphNodes/GraphUser` collection
$facebook_user = $response->getGraphUser();
$mecanex_user = $profileresponse->getGraphUser();
$existing_mecanex_user = MecanexUser::where('facebook_user_id', '=', $facebook_user["id"])->get()->first();
$existing_user = User::where('facebook_user_id', '=', $facebook_user["id"])->get()->first();
// Create the user if it does not exist or update the existing entry.
// This will only work if you've added the SyncableGraphNodeTrait to your User model.
if ($existing_user == null) {
$facebook_user["username"] = "******" . $facebook_user["id"];
} else {
$facebook_user["username"] = $existing_user->username;
}
$user = User::createOrUpdateGraphNode($facebook_user);
//store profile data in mecanex_users table
$id = $user->id;
$facebook_id = $user->facebook_user_id;
if ($existing_mecanex_user == null) {
$username = "******" . $user->facebook_user_id;
} else {
$username = $existing_mecanex_user->username;
}
$email = $user->email;
$fullname = $mecanex_user->getName();
$fullname = explode(" ", $fullname);
$name = $fullname[0];
$surname = $fullname[1];
$gender = $mecanex_user->getGender();
if ($gender == 'female') {
$gender_id = 2;
} else {
$gender_id = 1;
}
$fbuser = MecanexUser::firstOrNew(array('facebook_user_id' => $facebook_id));
$fbuser->username = $username;
$fbuser->user_id = $id;
$fbuser->facebook_user_id = $facebook_id;
$fbuser->gender_id = $gender_id;
$fbuser->name = $name;
$fbuser->surname = $surname;
$fbuser->email = $email;
$fbuser->save();
// Log the user into Laravel
Auth::login($user);
if ($existing_mecanex_user == null) {
// create records in table users_terms-scores once a mecanex user has been created
$terms = Term::all();
$total_terms = count($terms);
foreach ($terms as $term) {
$fbuser->term()->sync([$term->id => ['user_score' => 0]], false);
$fbuser->profilescore()->sync([$term->id => ['profile_score' => 0]], false);
}
for ($i = 1; $i <= $total_terms; $i++) {
for ($j = $i + 1; $j <= $total_terms; $j++) {
$mec_matrix = new MecanexUserTermHomeTermNeighbour();
$mec_matrix->mecanex_user_id = $fbuser->id;
$mec_matrix->term_home_id = $i;
$mec_matrix->term_neighbor_id = $j;
$mec_matrix->link_score = 0.05;
$mec_matrix->save();
}
}
}
return redirect('/home')->with('message', 'Successfully logged in with Facebook');
}
public function rf(Request $request)
{
$user = Auth::user();
$username = $user->username;
$device = "1";
$video_id = $request->video_id;
$action_type = 6;
$explicit_rf = $request->score;
//check if $request->score==-1 or 0 or 1
$record_exists = UserAction::where('username', $username)->where('video_id', $video_id)->where('action', $action_type)->first();
if (empty($record_exists)) {
$user_action = new UserAction(['username' => $username, 'device_id' => '1', 'video_id' => $video_id, 'explicit_rf' => $explicit_rf, 'action' => $action_type]);
$user_action->save();
$get_importance = Action::where('id', $action_type)->first();
$importance = $get_importance->importance;
$user_action->update(array('weight' => $explicit_rf, 'importance' => $importance));
// return $record_exists;
} else {
$record_exists->update(array('explicit_rf' => $explicit_rf, 'weight' => $explicit_rf));
}
//store in the dcgs table - only used for the online experiments
$mecanex_user = MecanexUser::where('username', $username)->first();
$dcg_record = Dcg::where('mecanex_user_id', $mecanex_user->id)->where('video_id', $video_id);
$dcg_record->update(array('explicit_rf' => $explicit_rf));
//////////////calculate ku///////////////////////
$k_nominator = UserAction::where('username', $username)->where('video_id', $video_id)->groupBy('username')->get(['username', DB::raw('SUM(importance*weight) as total_score')])->first();
//prepei edw na to diairw k me to plithos twn sunolikwn enrichments k ads
$query = "SELECT SUM(t1.importance ) AS total FROM (SELECT DISTINCT action, importance FROM user_actions WHERE username=:username AND video_id=:videoid) AS t1 ";
$k_denominator = DB::select(DB::raw($query), array('username' => $username, 'videoid' => $video_id));
//returns array
$k = $k_nominator->total_score / $k_denominator[0]->total;
//to [0] gia na prospelasei to 1o stoixeio tou array pou einai to object
/////////////////////////////update weights and update profile//////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////Retrieve Terms/////////////////////////////
//////////////retrieve terms for given video//////////////
$video = Video::where('video_id', $video_id)->first();
$threshold = 0.1;
//need to appropriate set
$results = $video->term()->where('video_score', '>', $threshold)->distinct()->get(array('term_id'));
//$results = $results->unique();
//return $results;
$video_term_list = [];
foreach ($results as $result) {
//retrieve the terms that will be updated
array_push($video_term_list, $result->term_id);
}
sort($video_term_list);
//return $video_term_list;
///////////retrieve terms for the clicked enrichments//////////////
$get_actionid = Action::where('action', 'click enrichment')->first();
$action_id = $get_actionid->id;
$enrichment_ids = UserAction::where('username', $username)->where('video_id', $video_id)->where('action', $action_id)->get(array('content_id'));
$enrichment_term_list = [];
// foreach ($enrichment_ids as $enrichment_id)
// {
//
// //call the api and get some terms
// //or emulate enrichment_terms
// //$results=Enrichment::where('id',$enrichment_id)->get(array('term_id'))
// foreach($results as $result)
// {
// array_push($enrichment_term_list,$result->term_id);
// }
//
// }
//$enrichment_terms=array_unique($enrichment_term_list);
// $enrichment_terms = [3, 4, 7];
//retrieve terms for the clicked ads
// $ads_terms = [4, 8, 10];
///Final term_list - no need since I will update in three steps
// $term_list=array_merge($video_term_list,$enrichment_terms,$ads_terms);
// $terms=array_unique($term_list);
////////////////update weights of profile//////////////////////////
$term_scores = [];
//save all scores to get the max
$user = MecanexUser::where('username', $username)->get()->first();
$video = Video::where('video_id', $video_id)->get()->first();
$link_user = MecanexUserTermHomeTermNeighbour::where('mecanex_user_id', $user->id)->get()->first();
//return $link_user;
//update based on video_terms
foreach ($video_term_list as $video_term_id) {
$temp_user = $user->term->find($video_term_id);
$user_term_score = $temp_user->pivot->user_score;
//get score of user
$temp_video = $video->term->find($video_term_id);
$video_term_score = $temp_video->pivot->video_score;
//get score of video
//update score
$new_score = $user_term_score + $k * (0.8 * $video_term_score);
//ok
$new_score = max($new_score, 0);
// don't let negative values
array_push($term_scores, $new_score);
// //store score
$user->term()->sync([$video_term_id => ['user_score' => $new_score]], false);
}
// update matrix
$number_video_terms = count($video_term_list);
$link_term_scores = [];
//save all scores to get the max
for ($i = 0; $i <= $number_video_terms - 1; $i++) {
for ($j = $i + 1; $j < $number_video_terms; $j++) {
$temp_user_matrix = MecanexUserTermHomeTermNeighbour::where('mecanex_user_id', $user->id)->where('term_home_id', $video_term_list[$i])->where('term_neighbor_id', $video_term_list[$j])->get()->first();
//return $temp_user_matrix;
$temp_video = $video->term->find($video_term_list[$i]);
$video_term_score1 = $temp_video->pivot->video_score;
$temp_video = $video->term->find($video_term_list[$j]);
$video_term_score2 = $temp_video->pivot->video_score;
//return $temp_user_matrix;
$new_score = $temp_user_matrix->link_score + $k * (0.8 * ($video_term_score1 * $video_term_score2));
$new_score = max($new_score, 0);
// don't let negative values
array_push($link_term_scores, $new_score);
$temp_user_matrix->link_score = $new_score;
$temp_user_matrix->save();
}
}
//same should be done for enrichments and ads
//find max value and divide term values
$max_term_value = max(max($term_scores), 1);
if ($link_term_scores != []) {
$max_link_term_value = max(max($link_term_scores), 1);
}
foreach ($video_term_list as $video_term_id) {
$temp_user = $user->term->find($video_term_id);
$user_term_score = $temp_user->pivot->user_score;
//get score of user
$temp_video = $video->term->find($video_term_id);
$video_term_score = $temp_video->pivot->video_score;
//get score of video
//update score
$new_score = $user_term_score / $max_term_value;
//ok
// //store score
$user->term()->sync([$video_term_id => ['user_score' => $new_score]], false);
}
for ($i = 0; $i <= $number_video_terms - 1; $i++) {
for ($j = $i + 1; $j < $number_video_terms; $j++) {
$temp_user_matrix = MecanexUserTermHomeTermNeighbour::where('mecanex_user_id', $user->id)->where('term_home_id', $video_term_list[$i])->where('term_neighbor_id', $video_term_list[$j])->get()->first();
$old_score = $temp_user_matrix->link_score;
$new_score = $old_score / $max_link_term_value;
$temp_user_matrix->link_score = $new_score;
$temp_user_matrix->save();
}
}
//calculate profile
$terms = Term::all()->count();
for ($j = 1; $j <= $terms; $j++) {
$profile_score = 0;
for ($i = 1; $i <= $terms; $i++) {
$temp_user = $user->term->find($i);
$user_term_score = $temp_user->pivot->user_score;
//get score of user
if ($i == $j) {
$link_score = 0;
} elseif ($i > $j) {
$temp_user_matrix = MecanexUserTermHomeTermNeighbour::where('mecanex_user_id', $user->id)->where('term_home_id', $j)->where('term_neighbor_id', $i)->get()->first();
$link_score = $temp_user_matrix->link_score;
} else {
$temp_user_matrix = MecanexUserTermHomeTermNeighbour::where('mecanex_user_id', $user->id)->where('term_home_id', $i)->where('term_neighbor_id', $j)->get()->first();
$link_score = $temp_user_matrix->link_score;
}
$profile_score = $profile_score + $user_term_score * $link_score;
}
$user->profilescore()->sync([$j => ['profile_score' => $profile_score]], false);
}
DB::table('user_actions')->where('username', $username)->where('video_id', $video_id)->delete();
return Redirect::route('home')->with('message', 'Thank you for watching the video');
}