我尝试通过选择电影的各个分数并找到平均值来尝试此计算属性。这有点棘手，但这是我到目前为止......
testing: Ember.computed('movie.title', 'movie.rating', function() {
return this.get('movie.title') + ', ' + this.get('movie.rating');
}),
averageScore: Ember.computed('review.@each.score', function() { //Used to determine each score of review
return this.get('review').(function(sum, review) {
return sum += review.get('score');
}, 0) / this.get('reviews').get('length');
}),
我知道我错过了什么，有什么建议吗？
答案 0 :(得分：2)
<?php
include('session.php');
$username=$_SESSION['username'];
$result = pg_query($db,"SELECT * FROM public.antennas WHERE idop IN (SELECT idop FROM public.user WHERE username_u='$username' ) ");
return $result;
$output = '';
$output .= '
<div class="table-responsive">
<table class="table table-bordered">
<tr>
<th width="10%">Id Antennas</th>
</tr>';
if(pg_num_rows($result) > 0)
{
while($row = pg_fetch_array($result, NULL, PGSQL_ASSOC))
{
$output .= '
<tr>
<td>'.$row["id_a"].'</td>
<td class="id_a" data-id1="'.$row["id_a"].'" contenteditable>'.$row["id_a"].'</td>
<td><button type="button" name="delete_btn" data-id7="'.$row["id_a"].'" class="btn btn-xs btn-danger btn_delete">x</button></td>
</tr>
';
}
$output .= '
<tr>
<td></td>
<td id="id_a" contenteditable></td>
<td><button type="button" name="btn_add" id="btn_add" class="btn btn-xs btn-success">+</button></td>
</tr>
';
echo 'success';
}
else
{
$output .= '<tr>
<td colspan="4">Data not Found</td>
</tr>';
echo 'problem';
}
$output .= '</table>
</div>';
echo $output;
?>
是内置的：
sum