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Re: [0.0] Re: [0.2] getting transactions to work

From: Rod K <rod(at)23net(dot)net>
To: reiner peterke <zedaardv(at)drizzle(dot)com>
Cc: bedouglas(at)earthlink(dot)net, pgsql-php(at)postgresql(dot)org
Subject: Re: [0.0] Re: [0.2] getting transactions to work
Date: 2004-07-30 16:13:35
Message-ID: 410A73AF.1010909@23net.net (view raw or flat)
Thread:
Lists: pgsql-php
No, persistent connections will not work either.

reiner peterke wrote:

> well i've read about this thing called persistent connection,
> i think it is supposed to exist in mysql also.  the idea sound like 
> what i want. i've tried it but i didn't get any different results.  
> but then i'm not convinced i did it right either.
>
> r
>
> On 30 jul 2004, at 17.21, bruce wrote:
>
>> if psgres works as mysql.... you should be able to do it...
>>
>> but the issue appears to be that the connection you establish with 
>> the db in
>> one page, is not available once you shut the page down.
>>
>> within mysql, there appears to be a mysqli group of functions that 
>> are setup
>> to accommodate transactions across multiple pages... i would 
>> imagine/hope
>> that the same sort of functionality is available for posgres....
>>
>> i'm getting close to needing the same functionality with mysql, and i'm
>> betting/hoping like hell that what i've just described is how mysql/php
>> works...
>>
>> -bruce
>>
>>
>> -----Original Message-----
>> From: pgsql-php-owner(at)postgresql(dot)org
>> [mailto:pgsql-php-owner(at)postgresql(dot)org]On Behalf Of reiner peterke
>> Sent: Friday, July 30, 2004 8:04 AM
>> To: Rod K
>> Cc: pgsql-php(at)postgresql(dot)org
>> Subject: Re: [0.2] [PHP] getting transactions to work
>>
>>
>> this is meant in all honesty,
>>
>> then whats the point?!
>>
>> ok, let me put it this way.  is there no way to implement pages using
>> transactions?
>> otherwise it seems to kind of defeat the purpose of them.
>>
>> r
>> On 30 jul 2004, at 16.57, Rod K wrote:
>>
>>> You are correct.  You cannot have a transaction span multiple
>>> pages/scripts.
>>>
>>> reiner peterke wrote:
>>>
>>>> there seems to be very little info around on actually using
>>>> transactions with postgres.  i've tried to create a page that will
>>>> take input from a form and insert it into my database.  it works if i
>>>> just do it without transactions but when i try to use with the begin
>>>> and commit sections of code, it doesn't update the data base.  i'm
>>>> guessing it is doing a rollback when my page loads itself again.  can
>>>> anyone help me out here ?
>>>>
>>>> thanks
>>>>
>>>> r
>>>>
>>>> code below
>>>>
>>>> <html>
>>>> <head>
>>>> <submitle>those eyes</submitle>
>>>> </head>
>>>> <body>
>>>>   <?
>>>>   $conn = pg_connect("dbname=entish user=postgres");
>>>>     if(!$conn)
>>>>     {
>>>>       print "not for the chocolate";
>>>>       exit;
>>>>     }
>>>>   if ($_POST[submit])  {
>>>>
>>>>     $begin = pg_query("begin");
>>>>     $isql = "insert into diety(diety,culture,gender)
>>>>               values
>>>> ('$_POST[diety]','$_POST[culture]','$_POST[gender]')";
>>>>     printf("-- %s --\n",$isql);
>>>>     $results = pg_query($isql);
>>>>     ?>
>>>>     <form method="post" action="<? echo $PHP_SELF?>">
>>>>       <input type="Submit" name="action" value="commit">
>>>>       <input type="Submit" name="action" value="rollback">
>>>>     </form>
>>>>     <?
>>>>   }
>>>>   else if(!$_POST[action]) {
>>>>   ?>
>>>>     <form method="post" action="<? echo $PHP_SELF?>">
>>>>       Diety:<input type="text" name="diety"><br>
>>>>       Culture:<input type="text" name="culture"><br>
>>>>       Gender:<input type="text" name="gender"><br>
>>>>       <input type="Submit" name="submit" value="enter">
>>>>     </form>
>>>>     <?
>>>>   }
>>>>   else {
>>>>     if($_POST[action] == 'commit') {
>>>>       echo "let me see";
>>>>       $act = pg_query("commit");
>>>>     }
>>>>     else {
>>>>       $act = pg_query("rollback");
>>>>       }
>>>>   }  //end if $_POST[submit]
>>>> ?>
>>>> </body>
>>>> </html>
>>>> ---------------------------(end of
>>>> broadcast)---------------------------
>>>> TIP 8: explain analyze is your friend
>>>
>>>
>>>
>>
>>
>> ---------------------------(end of broadcast)---------------------------
>> TIP 7: don't forget to increase your free space map settings
>>
>>
>> ---------------------------(end of broadcast)---------------------------
>> TIP 9: the planner will ignore your desire to choose an index scan if 
>> your
>>       joining column's datatypes do not match
>>
>


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