xml import/export tools, UPGRADING, update README

This commit is contained in:
Andrew Dolgov 2005-11-30 09:05:43 +01:00
parent 7cc1e5d653
commit 97aba8ec4e
5 changed files with 288 additions and 2 deletions

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NEWS
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v1.1 (Dec xy, 2005) v1.1 (Dec xy, 2005)
Note: there is no update path from 1.0.7, the schema is just too ! Please read UPGRADING for upgrade instructions from version 1.0.7 !
different. Sorry about that.
* Multi-user support (yay!) * Multi-user support (yay!)
* Per-feed purge preferences (0 means default, negative numbers disable purging) * Per-feed purge preferences (0 means default, negative numbers disable purging)

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README
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Tiny Tiny RSS Tiny Tiny RSS
============= =============
! Please read UPGRADING for upgrade instructions from version 1.0.7 !
Web-based news feed aggregator, designed to allow you to read news from Web-based news feed aggregator, designed to allow you to read news from
any location, while feeling as close to a real desktop application as possible. any location, while feeling as close to a real desktop application as possible.

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UPGRADING Normal file
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= Upgrading from TT-RSS 1.0.7 =
There is, unfortunately, no direct database schema upgrade script. Starred articles
and feed subscriptions may be transferred the following way:
== 1.0.7 ==
* Export your feed subscriptions to OPML
* Copy xml-export.php from TT-RSS 1.1 tarball to your 1.0.7 directory and run it. This script exports your starred articles in neutral XML format.
* Save resulting XML file somewhere
Unpack and configure TT-RSS 1.1. You may need to remove old tables manualy
(or choose the different database, etc.)
== 1.1 ==
* Import your feeds OPML
* Run xml-import.php and import your old starred articles

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xml-export.php Normal file
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<?
/*
Exports your starred articles in schema-neutral XML format.
*/
require_once "config.php";
require_once "functions.php";
require_once "db.php";
define('SCHEMA_VERSION', 1);
header("Content-Type: application/xml");
?>
<xmldb>
<?
$link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
if (!$link) {
if (DB_TYPE == "mysql") {
print mysql_error();
}
// PG seems to display its own errors just fine by default.
return;
}
if (DB_TYPE == "pgsql") {
pg_query("set client_encoding = 'utf-8'");
}
$result = db_query($link, "SELECT schema_version FROM ttrss_version");
$schema_version = db_fetch_result($result, 0, "schema_version");
if ($schema_version != SCHEMA_VERSION) {
print "Error: database schema is invalid
(got version $schema_version; expected ".SCHEMA_VERSION.")";
return;
}
print "<schema_version>$schema_version</schema_version>";
?>
<articles>
<?
$result = db_query($link, "SELECT
ttrss_entries.title AS title,
content,
marked,
unread,
updated,
guid,
link,
date_entered,
last_read,
comments,
ttrss_feeds.feed_url AS feed_url,
ttrss_feeds.title AS feed_title
FROM
ttrss_entries,ttrss_feeds
WHERE
feed_id = ttrss_feeds.id AND marked = true");
while ($line = db_fetch_assoc($result)) {
print "<article>";
foreach (array_keys($line) as $key) {
print "<$key><![CDATA[".$line[$key]."]]></$key>";
}
print "</article>";
}
?>
</articles>
</xmldb>

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xml-import.php Normal file
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<?
require_once "config.php";
require_once "functions.php";
require_once "db.php";
define('SOURCE_SCHEMA_VERSION', 1);
define('TARGET_SCHEMA_VERSION', 2);
$link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
login_sequence($link);
if (!$link) {
if (DB_TYPE == "mysql") {
print mysql_error();
}
// PG seems to display its own errors just fine by default.
return;
}
if (DB_TYPE == "pgsql") {
pg_query("set client_encoding = 'utf-8'");
}
$result = db_query($link, "SELECT schema_version FROM ttrss_version");
$schema_version = db_fetch_result($result, 0, "schema_version");
if ($schema_version != TARGET_SCHEMA_VERSION) {
print "Error: database schema is invalid
(got version $schema_version; expected ".TARGET_SCHEMA_VERSION.")";
return;
}
function import_article($link, $data) {
print "Processing article " . $data["title"] . "<br>";
$owner_uid = $_SESSION["uid"];
db_query($link, "BEGIN");
$result = db_query($link, "SELECT id FROM ttrss_feeds WHERE feed_url = '".
$data["feed_url"] . "' AND owner_uid = '$owner_uid'");
if (db_num_rows($result) == 0) {
return false;
}
$feed_id = db_fetch_result($result, 0, "id");
$result = db_query($link, "SELECT id FROM ttrss_entries WHERE
guid = '".$data["guid"]."'");
if (db_num_rows($result) == 0) {
print "Not found, adding base entry...<br>";
$entry_title = $data["title"];
$entry_guid = $data["guid"];
$entry_link = $data["link"];
$updated = $data["updated"];
$date_entered = $data["date_entered"];
$entry_content = $data["content"];
$content_hash = "SHA1:" . sha1(strip_tags($entry_content));
$entry_comments = $data["comments"];
$result = db_query($link,
"INSERT INTO ttrss_entries
(title,
guid,
link,
updated,
content,
content_hash,
no_orig_date,
date_entered,
comments)
VALUES
('$entry_title',
'$entry_guid',
'$entry_link',
'$updated',
'$entry_content',
'$content_hash',
false,
'$date_entered',
'$entry_comments')");
}
$result = db_query($link, "SELECT id FROM ttrss_entries WHERE
guid = '".$data["guid"]."'");
if (db_num_rows($result) == 0) { return false; }
$entry_id = db_fetch_result($result, 0, "id");
print "Found base ID: $entry_id<br>";
$result = db_query($link, "SELECT int_id FROM ttrss_user_entries WHERE
ref_id = '$entry_id'");
if (db_num_rows($result) == 0) {
print "User table entry not found, creating...<br>";
$unread = $data["unread"];
$marked = $data["marked"];
$last_read = $data["last_read"];
if (!$last_read) {
$last_read_qpart = 'NULL';
} else {
$last_read_qpart = "'$last_read'";
}
$result = db_query($link,
"INSERT INTO ttrss_user_entries
(ref_id, owner_uid, feed_id, unread, marked, last_read)
VALUES ('$entry_id', '$owner_uid', '$feed_id', '$unread', '$marked',
$last_read_qpart)");
} else {
print "User table entry already exists, nothing to do.<br>";
}
db_query($link, "COMMIT");
}
?>
<html>
<body>
<? if ($_REQUEST["op"] != "Import") { ?>
<h1>Import XMLDB (your login is <?= $_SESSION["login"] ?>)</h1>
<form enctype="multipart/form-data" method="POST" action="xml-import.php">
File: <input name="xmldb" type="file">&nbsp;
<input class="button" name="op" type="submit" value="Import">
</form>
<? } else {
print "<h1>Importing data (your login is ".$_SESSION["name"].")</h1>";
if (is_file($_FILES['xmldb']['tmp_name'])) {
$dom = domxml_open_file($_FILES['xmldb']['tmp_name']);
// $dom = domxml_open_file('xmldb.xml');
if ($dom) {
$root = $dom->document_element();
$schema_version = $root->get_elements_by_tagname('schema_version');
$schema_version = $schema_version[0]->get_content();
if ($schema_version != SOURCE_SCHEMA_VERSION) {
die("Incorrect source schema version");
}
$articles = $root->get_elements_by_tagname("article");
foreach ($articles as $article) {
$child_nodes = $article->child_nodes();
$article_data = array();
foreach ($child_nodes as $child) {
$article_data[$child->tagname()] = $child->get_content();
}
import_article($link, $article_data);
}
} else {
print "Error: could not parse document.";
}
} else {
print "<p>Error: please upload XMLDB.</p>";
}
} ?>
</body>
</html>