| From: | reiner peterke <zedaardv(at)drizzle(dot)com> |
|---|---|
| To: | Rod K <rod(at)23net(dot)net> |
| Cc: | pgsql-php(at)postgresql(dot)org |
| Subject: | Re: [0.0] Re: [0.2] getting transactions to work |
| Date: | 2004-07-30 16:05:06 |
| Message-ID: | 39156042-E242-11D8-8EE0-000A95984CA6@drizzle.com |
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| Thread: | |
| Lists: | pgsql-php |
i'm trying to test an idea. i know what i sent doesn't do much, but i
try out ideas before i go too far to make sure i understand what i
think i do
in my 'real life' i work with oracle. i like the idea of explicitly
telling the database when i'm done. i want to be able to trap errors
and rollback if necessary. also to give someone the choice of saving
the work or not. i know there are things i can do to create the
similar effect,
create the sql, then when i'm ready submit it to the database.
i guess i'm trying to test the limits right now!
thanks for the input.
r
On 30 jul 2004, at 17.11, Rod K wrote:
> You can find many resources to explain their purpose better than I can
> do here.
>
> To be honest, I can't see what you are trying to accomplish in your
> script. If it's validation you should be using session variables to
> store the input AND echoing what was inputed on the validation page.
>
> reiner peterke wrote:
>
>> 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 5: Have you checked our extensive FAQ?
>
> http://www.postgresql.org/docs/faqs/FAQ.html
>
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