Update DatabaseArticleManager.php

.idea/dataSources.local.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="dataSourceStorageLocal" created-in="IU-261.24374.151">
+    <data-source name="articles" uuid="315cb5c9-2b0f-435b-b602-59823b160908">
+      <database-info product="SQLite" version="3.51.1" jdbc-version="4.2" driver-name="SQLite JDBC" driver-version="3.51.1.0" dbms="SQLITE" exact-version="3.51.1" exact-driver-version="3.51">
+        <identifier-quote-string>&quot;</identifier-quote-string>
+      </database-info>
+      <case-sensitivity plain-identifiers="mixed" quoted-identifiers="mixed" />
+      <secret-storage>master_key</secret-storage>
+      <auth-provider>no-auth</auth-provider>
+      <schema-mapping>
+        <introspection-scope>
+          <node kind="schema" qname="@" />
+        </introspection-scope>
+      </schema-mapping>
+    </data-source>
+  </component>
+</project>

.idea/dataSources.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="DataSourceManagerImpl" format="xml" multifile-model="true">
+    <data-source source="LOCAL" name="articles" uuid="315cb5c9-2b0f-435b-b602-59823b160908">
+      <driver-ref>sqlite.xerial</driver-ref>
+      <synchronize>true</synchronize>
+      <jdbc-driver>org.sqlite.JDBC</jdbc-driver>
+      <jdbc-url>jdbc:sqlite:$PROJECT_DIR$/db/articles</jdbc-url>
+      <working-dir>$ProjectFileDir$</working-dir>
+    </data-source>
+  </component>
+</project>

.idea/dataSources/a0abcd0a-1d6f-40e4-88be-f442bcb431ba/storage_v2/_src_/schema/main.uQUzAA.meta

@@ -1,2 +0,0 @@
-#n:main
-!<md> [0, 0, null, null, -2147483648, -2147483648]

php/model/DatabaseArticleManager.php

@@ -20,10 +20,8 @@ class DatabaseArticleManager implements ArticleManagerDAO {
     {
         if (!file_exists(__DIR__ . '/../../db/articles.db')) {
             try {
-                $user = 'root';
+
-                $pw = null;
+                $db = $this->getConnection();
-                $dsn = 'sqlite:' . __DIR__ . '/../../db/articles.db';
-                $db = new PDO($dsn, $user, $pw);
 
                 $db->exec("
                     CREATE TABLE articles (