Laravel 5 ,Table not updating - php

Question

Im Trying to update my table through Laravel Updation,i get no error when i tried to print the result i just got an null value ,i have pasted my model and controller.
controller
public function update_FAQ_submit()
{
$data = Input::except(array(
'_token'
));
$rule = array(
'faq_ques' => 'required',
'faq_ans' => 'required'
);
$id = Input::get('id');
$validator = Validator::make($data, $rule);
if ($validator->fails()) {
return Redirect::to('Coin_lion/FAQ')->withErrors($validator->messages())->withInput();
} else {
$entry = array(
'faq_ques' => Input::get('faq_ques'),
'faq_ans' => Input::get('faq_ans')
);
$faq=FAQ::update_faq($id, $entry);
return Redirect::to('Coin_lion/manage_FAQ');
}
}
Model
public static function update_faq($id, $entry)
{
return DB::table('faq')->where('id', '=', $id)->update($entry);
}
Routes:
Route::post('Coin_lion/update_FAQ_submit','AdminController#update_FAQ_submit');
my DB
My form
here is my form ,i have included what method i used previously
">
{!! Form::hidden('id', $id) !!}
#foreach ($faq as $info)
<label>Enter your question:</label><br>
<input type="text" class="form-control" name="faq_ques" value="<?php echo $info->faq_ques ?>"><br>
<label>Enter your Answer:</label>
<textarea class="form-control" name="faq_ans" cols="10" rows="5" ><?php echo $info->faq_ans ?></textarea>
<input type="submit" class="btn btn-success" name="submit" value="ADD">
<input type="reset" class="btn btn-danger" name="submit" value="Cancel">
#endforeach
</body>

Answer 1

First try to check that you are getting values in your controller and passing it correctly in you model then you need to replace your query with this. And replace your model code with this.
public function update_faq($id, $entry)
{
DB::table('faq')->where('id',$id)->update($entry);
}

Answer 2

public static function update_faq($id, $entry) {
DB::table('faq')
->where('id', $id) // find your faq by their id
->update($entry); // update the record in the DB.
}