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cvsjoko |
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Abstracted Types (Stig) |
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DB needs a set of types representing the most commonly used types in |
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all backends. This type set could also be geared towards integration |
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with things like XML-RPC/SOAP implementations, HTML form classes, etc. |
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Real Query Parser (Stig) |
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With a real query parser, DB can implement more of its portability |
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based on the query, instead of having support functions for |
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everything. One example would be LIMIT, another "INSERT |
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... RETURNING". |
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Portable transactions (Stig) |
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If DB can parse queries enough to determine what tables are affected |
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by queries, it should be possible to make a replayable transaction |
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log. GNOME uses an XML format for configuration data that lets you |
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checkpoint state once in a while, and revert to that state later. |
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With a similar approach for transactions in DB we can implement |
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portable transactions and checkpointing even for the databases that |
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don't support them. |
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Error reporting clean-up/debug (Tomas) |
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Now each driver has its own raiseError method, common has a raiseError and |
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DB has a DB_error class and its own isError() method. This error stuff |
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overhead could be simplified with only one raiseError, droping the DB Error |
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class and also the DB::isError() (use the PEAR.php ones instead). |
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Other idea could be to add a system for allowing people access to all the |
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queries sended by PEAR DB to the backend. Also a new PEAR_ERROR_DEBUG |
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flag that automatically (show|triggers) debug info, perhaps |
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with a new PEAR_(Warning|Debug) object. |
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Quote clean-up (Stig) |
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1. Keep quote and quoteString, but move quoting of strings back into |
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quoteString and make quote call it for strings. |
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2. Add an optional "operator" parameter to quote that is one of "=", |
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"<", ">" or "<>" that will be inserted in front of the quoted value |
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unless it is NULL, in which case it will be converted to "IS" (for |
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"=") or "IS NOT" (for the others). |
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Auto free statements (Tomas) |
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By setting a param in query() or for the hole DB instance, PEAR DB |
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could auto-free results in DB_result->fetch(Into|Row) when the driver |
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returns false. |
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Datatypes in prepare syntax (Tomas) |
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----------------------------------- |
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Extend the actual prepare/execute placeholders to support data types, both |
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to check the data introduced to the query and to "cast" the result |
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to native php data types. Ex: |
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$sql = "INSERT INTO table VALUES ({{int(4)}}, {{bool}}, {{date('Y-m-d')}})"; |
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$row = $db->query($sql, array(8, 't', '2001-04-1')); |
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Format: {{<data_type>(<param1>,<param2>)}} |
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"param" could be the max lenght of the data, date formats, not_null |
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checks or default values. |
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Other ideas could be: |
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1) |
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$sql = "INSERT INTO table VALUES (?, ?, ?)"; |
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$sth = $db->prepare($sql, array('int(4)', 'bool', 'date'); |
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$res = $db->execute($sth, array($a, $b, $c); |
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2) |
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$sql = "INSERT INTO table VALUES (?, ?, ?)"; |
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$params = array( |
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0 => array($a, 'int(4)'), |
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1 => array($b, 'bool') |
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); |
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$res = $db->query($sql, $params); |
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Auto connect feature (Tomas) |
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---------------------------- |
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Add the ability to create for example a light and dump DB object which |
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will only set up the connection when needed. With that people could |
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create the DB object in a common prepend or default file without the |
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need to waste system resources if the use of the database is finally |
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not needed. |
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