On Thu, 10 Feb 2011 16:38:40 -0500, Stephan Beal <sgb...@googlemail.com> wrote:
> On Sun, Feb 6, 2011 at 2:36 PM, Samuel Adam <a...@certifound.com> wrote: > >> >> * Make sure the binding is done as BLOB and not TEXT. PDO >> probably >> has >> its own flags defined for this. This is the part that tells SQLite >> whether you are inserting TEXT or BLOB. >> > > http://www.php.net/manual/en/pdostatement.bindparam.php > > When inserting the GIF, the 3rd argument to bindParam() must be > PDO::PARAM_LOB (not BLOB, interestingly). The default is PDO::PARAM_STR, > which almost certainly results in the OP's frustration. Thanks for actually looking this up. But on Sun, 06 Feb 2011 10:53:05 -0500, Yves Goergen <nospam.l...@unclassified.de> actually said he was using “a PDO method to execute a prepared statement with an array of values to be used as parameters”. That appears to be this: http://www.php.net/manual/en/pdostatement.execute.php input_parameters An array of values with as many elements as there are bound parameters in the SQL statement being executed. All values are treated as PDO::PARAM_STR. In other words, he is using a PHPism which hands off only one type and then blaming SQLite for treating his data as the wrong type. (That interface is bizarre, by the way: Either you can bind the parameters yourself and then call it with no arguments, or bind nothing yourself and pass it an array of values which will be treated as text. Mr. Goergen appears to be doing the latter.) Worse, PDO::PARAM_LOB is for binding a stream and not a regular variable: http://www.php.net/manual/en/pdo.lobs.php And it is for “objects [] either textual or binary in nature” (Id.). As usual with PHP, the docs are very imprecise on what the database will actually get. “Example #14[:] Inserting an image into a database” thereby (based on an fopen() stream) looks promising, but still does not document the type told to the database. If there is a way anywhere in PDO to explicitly hand SQLite a BLOB type and/or so do from a variable, the PDO constants list http://www.php.net/manual/en/pdo.constants.php fails to disclose it. PHP’s SQLite3 class does have a SQLITE3_BLOB flag. But that is not what Mr. Goergen is using. Easiest solution: The UPDATE and triggers suggested on Mon, 07 Feb 2011 03:16:54 -0500 by Philip Graham Willoughby <phil.willoug...@strawberrycat.com>. Best solution: Reading and understanding the docs, particularly as to SQLite’s type system, and then making a few thoughtful decisions as to architecture. Very truly, Samuel Adam ◊ <http://certifound.com/> 763 Montgomery Road ◊ Hillsborough, NJ 08844-1304 ◊ United States Legal advice from a non-lawyer: “If you are sued, don’t do what the Supreme Court of New Jersey, its agents, and its officers did.” http://www.youtube.com/watch?v=iT2hEwBfU1g _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
