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oembed cache: don't store the url (which may need to be truncated), store a hash instead. This will allow us to convert the table to utf8mb4 without running into mysql key length restrictions as well as dealing with the potential ambiguity of truncated urls.

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This commit is contained in:
zotlabs 2017-04-18 18:31:10 -07:00
parent a037758245
commit 53bd0146bb
1 changed files with 6 additions and 6 deletions
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12
Zotlabs/Lib/Cache.php
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@ -9,10 +9,10 @@ namespace Zotlabs\Lib;
class Cache { class Cache {
public static function get($key) { public static function get($key) {
$key = substr($key,0,254); $hash = hash('whirlpool',$key);
$r = q("SELECT v FROM cache WHERE k = '%s' limit 1", $r = q("SELECT v FROM cache WHERE k = '%s' limit 1",
dbesc($key) dbesc($hash)
); );
if ($r) if ($r)
@ -22,20 +22,20 @@ class Cache {
public static function set($key,$value) { public static function set($key,$value) {
$key = substr($key,0,254); $hash = hash('whirlpool',$key);
$r = q("SELECT * FROM cache WHERE k = '%s' limit 1", $r = q("SELECT * FROM cache WHERE k = '%s' limit 1",
dbesc($key) dbesc($hash)
); );
if($r) { if($r) {
q("UPDATE cache SET v = '%s', updated = '%s' WHERE k = '%s'", q("UPDATE cache SET v = '%s', updated = '%s' WHERE k = '%s'",
dbesc($value), dbesc($value),
dbesc(datetime_convert()), dbesc(datetime_convert()),
dbesc($key)); dbesc($hash));
} }
else { else {
q("INSERT INTO cache ( k, v, updated) VALUES ('%s','%s','%s')", q("INSERT INTO cache ( k, v, updated) VALUES ('%s','%s','%s')",
dbesc($key), dbesc($hash),
dbesc($value), dbesc($value),
dbesc(datetime_convert())); dbesc(datetime_convert()));
} }