From 7c1b5e322cca0134f57b3a436129985ba9170b9f Mon Sep 17 00:00:00 2001
From: Alexandre Alapetite <alexandre@alapetite.fr>
Date: Tue, 2 Aug 2016 22:49:35 +0200
Subject: PostgreSQL draft

https://github.com/FreshRSS/FreshRSS/issues/416
Based on @Damstre work https://github.com/FreshRSS/FreshRSS/pull/1071
Not tested
---
 app/Models/EntryDAOPGSQL.php | 92 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 app/Models/EntryDAOPGSQL.php

(limited to 'app/Models/EntryDAOPGSQL.php')

diff --git a/app/Models/EntryDAOPGSQL.php b/app/Models/EntryDAOPGSQL.php
new file mode 100644
index 000000000..95c12ff5d
--- /dev/null
+++ b/app/Models/EntryDAOPGSQL.php
@@ -0,0 +1,92 @@
+<?php
+
+class FreshRSS_EntryDAOPGSQL extends FreshRSS_EntryDAO {
+
+	protected function addColumn($name) {
+		return false;
+	}
+
+	protected function updateCacheUnreads($catId = false, $feedId = false) {
+		return true;	//done via triggers
+	}
+
+	/**
+	 * Mark all the articles in a feed as read.
+	 * There is a fail safe to prevent to mark as read articles that are
+	 * loaded during the mark as read action. Then the cache is updated.
+	 *
+	 * If $idMax equals 0, a deprecated debug message is logged
+	 *
+	 * @param integer $id_feed feed ID
+	 * @param integer $idMax fail safe article ID
+	 * @return integer affected rows
+	 */
+	public function markReadFeed($id_feed, $idMax = 0) {
+		if ($idMax == 0) {
+			$idMax = time() . '000000';
+			Minz_Log::debug('Calling markReadFeed(0) is deprecated!');
+		}
+		$this->bd->beginTransaction();
+
+		$sql = 'UPDATE "' . $this->prefix . 'entry" '
+			 . 'SET is_read=:is_read '
+			 . 'WHERE id_feed=:id_feed AND NOT is_read AND id <= :idmax';
+		$values = array($id_feed, $idMax);
+		$stm = $this->bd->prepare($sql);
+		$stm->bindValue(':is_read', true, PDO::PARAM_BOOL);
+		$stm->bindValue(':id_feed', $id_feed);
+		$stm->bindValue(':idmax', $idMax);
+
+		if (!($stm && $stm->execute())) {
+			$info = $stm == null ? array(2 => 'syntax error') : $stm->errorInfo();
+			Minz_Log::error('SQL error markReadFeed: ' . $info[2]);
+			$this->bd->rollBack();
+			return false;
+		}
+		$affected = $stm->rowCount();
+
+		$this->bd->commit();
+		return $affected;
+	}
+
+	public function listHashForFeedGuids($id_feed, $guids) {
+		if (count($guids) < 1) {
+			return array();
+		}
+		$sql = 'SELECT guid, hash AS hexHash FROM "' . $this->prefix . 'entry" WHERE id_feed=? AND guid IN (' . str_repeat('?,', count($guids) - 1). '?)';
+		$stm = $this->bd->prepare($sql);
+		$values = array($id_feed);
+		$values = array_merge($values, $guids);
+		if ($stm && $stm->execute($values)) {
+			$result = array();
+			$rows = $stm->fetchAll(PDO::FETCH_ASSOC);
+			foreach ($rows as $row) {
+				$result[$row['guid']] = $row['hexHash'];
+			}
+			return $result;
+		} else {
+			$info = $stm == null ? array(0 => '', 1 => '', 2 => 'syntax error') : $stm->errorInfo();
+			if ($this->autoAddColumn($info)) {
+				return $this->listHashForFeedGuids($id_feed, $guids);
+			}
+			Minz_Log::error('SQL error listHashForFeedGuids: ' . $info[0] . ': ' . $info[1] . ' ' . $info[2]
+				. ' while querying feed ' . $id_feed);
+			return false;
+		}
+	}
+
+	public function optimizeTable() {
+		return null;
+	}
+
+	public function size($all = true) {
+		$db = FreshRSS_Context::$system_conf->db;
+		$sql = 'SELECT pg_size_pretty(pg_database_size(?))';
+		$values = array($db['base']);
+		$stm = $this->bd->prepare($sql);
+		$stm->execute($values);
+		$res = $stm->fetchAll(PDO::FETCH_COLUMN, 0);
+		return $res[0];
+	}
+
+}
-- 
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