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

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This commit is contained in:
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/weekly_report.php
+15 -51
View File
@@ -2,6 +2,7 @@
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);
require_once 'scripts/common.php';
$startdate = strtotime('last sunday') - (7*86400);
$enddate = strtotime('last sunday') - (1*86400);
@@ -10,48 +11,30 @@ $debug = false;
if(isset($_GET['ascii'])) {
$db = new SQLite3('./scripts/birds.db', SQLITE3_OPEN_CREATE | SQLITE3_OPEN_READWRITE);
if($db == False){
echo "Database is busy";
header("refresh: 0;");
}
$db = new SQLite3('./scripts/birds.db', SQLITE3_OPEN_READONLY);
$db->busyTimeout(1000);
$statement1 = $db->prepare('SELECT DISTINCT(Com_Name), COUNT(*) FROM detections WHERE Date BETWEEN "'.date("Y-m-d",$startdate).'" AND "'.date("Y-m-d",$enddate).'" GROUP By Com_Name ORDER BY COUNT(*) DESC');
if($statement1 == False){
echo "Database is busy";
header("refresh: 0;");
}
ensure_db_ok($statement1);
$result1 = $statement1->execute();
$statement4 = $db->prepare('SELECT DISTINCT(Com_Name), COUNT(*) FROM detections WHERE Date BETWEEN "'.date("Y-m-d",$startdate).'" AND "'.date("Y-m-d",$enddate).'"');
if($statement4 == False){
echo "Database is busy";
header("refresh: 0;");
}
ensure_db_ok($statement4);
$result4 = $statement4->execute();
$totalcount = $result4->fetchArray(SQLITE3_ASSOC)['COUNT(*)'];
$statement5 = $db->prepare('SELECT DISTINCT(Com_Name), COUNT(*) FROM detections WHERE Date BETWEEN "'.date("Y-m-d",$startdate- (7*86400)).'" AND "'.date("Y-m-d",$enddate- (7*86400)).'"');
if($statement5 == False){
echo "Database is busy";
header("refresh: 0;");
}
ensure_db_ok($statement5);
$result5 = $statement5->execute();
$priortotalcount = $result5->fetchArray(SQLITE3_ASSOC)['COUNT(*)'];
$statement6 = $db->prepare('SELECT COUNT(DISTINCT(Com_Name)) FROM detections WHERE Date BETWEEN "'.date("Y-m-d",$startdate).'" AND "'.date("Y-m-d",$enddate).'"');
if($statement6 == False){
echo "Database is busy";
header("refresh: 0;");
}
ensure_db_ok($statement6);
$result6 = $statement6->execute();
$totalspeciestally = $result6->fetchArray(SQLITE3_ASSOC)['COUNT(DISTINCT(Com_Name))'];
$statement7 = $db->prepare('SELECT COUNT(DISTINCT(Com_Name)) FROM detections WHERE Date BETWEEN "'.date("Y-m-d",$startdate- (7*86400)).'" AND "'.date("Y-m-d",$enddate- (7*86400)).'"');
if($statement7 == False){
echo "Database is busy";
header("refresh: 0;");
}
ensure_db_ok($statement7);
$result7= $statement7->execute();
$priortotalspeciestally = $result7->fetchArray(SQLITE3_ASSOC)['COUNT(DISTINCT(Com_Name))'];
@@ -91,10 +74,7 @@ if(isset($_GET['ascii'])) {
if($i <= 10) {
$statement2 = $db->prepare('SELECT COUNT(*) FROM detections WHERE Com_Name == "'.$com_name.'" AND Date BETWEEN "'.date("Y-m-d",$startdate - (7*86400)).'" AND "'.date("Y-m-d",$enddate - (7*86400)).'"');
if($statement2 == False){
echo "Database is busy";
header("refresh: 0;");
}
ensure_db_ok($statement2);
$result2 = $statement2->execute();
$totalcount = $result2->fetchArray(SQLITE3_ASSOC);
$priorweekcount = $totalcount['COUNT(*)'];
@@ -122,10 +102,7 @@ if(isset($_GET['ascii'])) {
foreach($detections as $com_name=>$scount)
{
$statement3 = $db->prepare('SELECT COUNT(*) FROM detections WHERE Com_Name == "'.$com_name.'" AND Date NOT BETWEEN "'.date("Y-m-d",$startdate).'" AND "'.date("Y-m-d",$enddate).'"');
if($statement3 == False){
echo "Database is busy";
header("refresh: 0;");
}
ensure_db_ok($statement3);
$result3 = $statement3->execute();
$totalcount = $result3->fetchArray(SQLITE3_ASSOC);
$nonthisweekcount = $totalcount['COUNT(*)'];
@@ -153,21 +130,14 @@ if(isset($_GET['ascii'])) {
echo "<h1>Week ".date('W', $enddate)." Report</h1>".date('F jS, Y',$startdate)." — ".date('F jS, Y',$enddate)."<br>";
?></div><?php
$db = new SQLite3('./scripts/birds.db', SQLITE3_OPEN_CREATE | SQLITE3_OPEN_READWRITE);
if($db == False){
echo "Database is busy";
header("refresh: 0;");
}
$db = new SQLite3('./scripts/birds.db', SQLITE3_OPEN_READONLY);
$db->busyTimeout(1000);
if($debug == false){
$statement1 = $db->prepare('SELECT DISTINCT(Com_Name), COUNT(*) FROM detections WHERE Date BETWEEN "'.date("Y-m-d",$startdate).'" AND "'.date("Y-m-d",$enddate).'" GROUP By Com_Name ORDER BY COUNT(*) DESC');
} else {
$statement1 = $db->prepare('SELECT DISTINCT(Com_Name), COUNT(*) FROM detections WHERE Date BETWEEN "'.date("Y-m-d",$startdate).'" AND "'.date("Y-m-d",$enddate).'" GROUP By Com_Name ORDER BY COUNT(*) ASC');
}
if($statement1 == False){
echo "Database is busy";
header("refresh: 0;");
}
ensure_db_ok($statement1);
$result1 = $statement1->execute();
$detections = [];
@@ -202,10 +172,7 @@ while($detection=$result1->fetchArray(SQLITE3_ASSOC))
$i++;
if($i <= 10) {
$statement2 = $db->prepare('SELECT COUNT(*) FROM detections WHERE Com_Name == "'.$com_name.'" AND Date BETWEEN "'.date("Y-m-d",$startdate - (7*86400)).'" AND "'.date("Y-m-d",$enddate - (7*86400)).'"');
if($statement2 == False){
echo "Database is busy";
header("refresh: 0;");
}
ensure_db_ok($statement2);
$result2 = $statement2->execute();
$totalcount = $result2->fetchArray(SQLITE3_ASSOC);
$priorweekcount = $totalcount['COUNT(*)'];
@@ -243,10 +210,7 @@ while($detection=$result1->fetchArray(SQLITE3_ASSOC))
foreach($detections as $com_name=>$scount)
{
$statement3 = $db->prepare('SELECT COUNT(*) FROM detections WHERE Com_Name == "'.$com_name.'" AND Date NOT BETWEEN "'.date("Y-m-d",$startdate).'" AND "'.date("Y-m-d",$enddate).'"');
if($statement3 == False){
echo "Database is busy";
header("refresh: 0;");
}
ensure_db_ok($statement3);
$result3 = $statement3->execute();
$totalcount = $result3->fetchArray(SQLITE3_ASSOC);
$nonthisweekcount = $totalcount['COUNT(*)'];