File and File_redirection adhoc storage methods updated for urlhash
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@@ -355,4 +355,40 @@ class File_redirection extends Managed_DataObject
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$file_redir->httpcode = intval($data['code']);
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$file_redir->insert();
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}
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static public function beforeSchemaUpdate()
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{
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$table = strtolower(get_called_class());
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$schema = Schema::get();
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$schemadef = $schema->getTableDef($table);
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// 2015-02-19 We have to upgrade our table definitions to have the urlhash field populated
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if (isset($schemadef['fields']['urlhash']) && in_array('urlhash', $schemadef['primary key'])) {
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// We already have the urlhash field, so no need to migrate it.
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return;
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}
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echo "\nFound old $table table, upgrading it to contain 'urlhash' field...\n";
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// We have to create a urlhash that is _not_ the primary key,
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// transfer data and THEN run checkSchema
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$schemadef['fields']['urlhash'] = array (
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'type' => 'varchar',
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'length' => 64,
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'description' => 'sha256 of destination URL after following redirections',
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);
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$schema->ensureTable($table, $schemadef);
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echo "DONE.\n";
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$classname = ucfirst($table);
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$tablefix = new $classname;
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// urlhash is hash('sha256', $url) in the File table
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echo "Updating urlhash fields in $table table...\n";
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// Maybe very MySQL specific :(
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$tablefix->query(sprintf('UPDATE %1$s SET %2$s=%3$s;',
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$schema->quoteIdentifier($table),
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'urlhash',
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// The line below is "result of sha256 on column `url`"
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'SHA2(url, 256)'));
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echo "DONE.\n";
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echo "Resuming core schema upgrade...";
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}
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}
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