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add busyTimeout() to deal with concurrency. open read-write only when needed

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frederik
2024-03-04 14:03:54 +01:00
parent 90d53a3a43
commit b0eb5e063f
7 changed files with 60 additions and 175 deletions
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scripts/stats.php
+8 -25
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@@ -7,42 +7,28 @@ $_POST = filter_input_array(INPUT_POST, FILTER_SANITIZE_STRING);
ini_set('user_agent', 'PHP_Flickr/1.0');
error_reporting(0);
ini_set('display_errors', 0);
require_once 'scripts/common.php';
$db = new SQLite3('./scripts/birds.db', SQLITE3_OPEN_CREATE | SQLITE3_OPEN_READWRITE);
if($db == False) {
echo "Database busy";
header("refresh: 0;");
}
$db = new SQLite3('./scripts/birds.db', SQLITE3_OPEN_READONLY);
$db->busyTimeout(1000);
if(isset($_GET['sort']) && $_GET['sort'] == "occurrences") {
$statement = $db->prepare('SELECT Date, Time, File_Name, Com_Name, COUNT(*), MAX(Confidence) FROM detections GROUP BY Com_Name ORDER BY COUNT(*) DESC');
if($statement == False) {
echo "Database busy";
header("refresh: 0;");
}
ensure_db_ok($statement);
$result = $statement->execute();
$statement2 = $db->prepare('SELECT Date, Time, File_Name, Com_Name, COUNT(*), MAX(Confidence) FROM detections GROUP BY Com_Name ORDER BY COUNT(*) DESC');
if($statement == False) {
echo "Database busy";
header("refresh: 0;");
}
ensure_db_ok($statement2);
$result2 = $statement2->execute();
} else {
$statement = $db->prepare('SELECT Date, Time, File_Name, Com_Name, COUNT(*), MAX(Confidence) FROM detections GROUP BY Com_Name ORDER BY Com_Name ASC');
if($statement == False) {
echo "Database busy";
header("refresh: 0;");
}
ensure_db_ok($statement);
$result = $statement->execute();
$statement2 = $db->prepare('SELECT Date, Time, File_Name, Com_Name, COUNT(*), MAX(Confidence) FROM detections GROUP BY Com_Name ORDER BY Com_Name ASC');
if($statement == False) {
echo "Database busy";
header("refresh: 0;");
}
ensure_db_ok($statement2);
$result2 = $statement2->execute();
}
@@ -51,10 +37,7 @@ if(isset($_GET['sort']) && $_GET['sort'] == "occurrences") {
if(isset($_GET['species'])){
$selection = $_GET['species'];
$statement3 = $db->prepare("SELECT Com_Name, Sci_Name, COUNT(*), MAX(Confidence), File_Name, Date, Time from detections WHERE Com_Name = \"$selection\"");
if($statement3 == False) {
echo "Database busy";
header("refresh: 0;");
}
ensure_db_ok($statement3);
$result3 = $statement3->execute();
}