Question

php batch update mysql

Asked by: bradnoble

hi EE,

i have a form that is made up rows.  each row contains form fields with values from a mysql db; the fields in the db are 'page title', 'page alias', and 'page status'.

so, if i write sql to find all 'pages' in the db, the form will show me a table of rows, each row containing form fields with values corresponding to the values of that 'page', per 'pageID'.

for example, if my db has two pages, this is what i see:
th->       |  page title |  page alias  | page status  |
row1->   | page 1      |  page1        | live             |
row2->   | page 2      | page2         | hidden        |

i want to send this form to a script that will batch update each record present and posted from the form.  so, per row, i want to update the db.  of course, each form field should be unique and should relate in some way to the primary key in that db, which is 'pageID'.  but, i'm not sure how to write the script.

any ideas?
thanks,
brad

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Asked On
2005-01-26 at 12:05:52ID21289845
Tags

batch

,

mysql

,

update

Topic

PHP and Databases

Participating Experts
2
Points
500
Comments
8

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Answers

 

by: matt_mcswainPosted on 2005-01-26 at 22:57:00ID: 13150044

If your using html arrays for your fields like this:

<input type="text" name="pagetitle[<?=$pageid?>">|<input type="text" name="pagealias[<?=$pageid?>">|etc.


And your rows in your form are setup the same way left to right as your table fields;
you can put this wherever your form is being submitted.(If I understand you correctly)

foreach($_POST as $field=>$array)
   foreach($array as $id=>$newvalue)
         $queries[$id] = isset($queries[$id]) ? $queries[$id].",'$newvalue'" :
            "REPLACE INTO pages VALUES ($id,'$newvalue'";
foreach($queries as $id=>$query)
  mysql_query($query.')') or die(mysql_error().$query.')');
 

 

by: matt_mcswainPosted on 2005-01-27 at 00:36:39ID: 13150381

If you put this in the same file as the form, make sure to change it to:

foreach($_POST as $field=>$array)
   foreach($array as $id=>$newvalue)
         $queries[$id] = isset($queries[$id]) ? $queries[$id].",'$newvalue'" :
            "REPLACE INTO pages VALUES ($id,'$newvalue'";
if (isset($queries))
  foreach($queries as $id=>$query)
    mysql_query($query.')') or die(mysql_error().$query.')');

To test if the queries have been built
Otherwise, change the form action to point to the appropriate filename

 

by: bradnoblePosted on 2005-01-27 at 05:29:47ID: 13151992

Thanks for your response.  I'm working it out now.  But, i've never used 'replace into' before.  does that work like an insert?  i need to maintain the pageID for those records being updated.

 

by: matt_mcswainPosted on 2005-01-27 at 10:32:29ID: 13155328

It works like INSERT, but it replaces the old record with the new values if the primary key value $id exists.

 

by: bradnoblePosted on 2005-01-28 at 04:25:56ID: 13162460

matt,
this didn't work out for me.  thanks, though.  i think it may have to do with the way i set up my form.  not sure.  but, i did figure something that did work for me.  kind of a hack job.  thanks anyway.

 

by: matt_mcswainPosted on 2005-01-28 at 08:19:50ID: 13164589

What was the problem?
Just curious. :)

 

by: kshitij_ahujaPosted on 2006-01-08 at 03:58:52ID: 15641311

No comment has been added to this question in more than 21 days,so it is now classified as abandoned..
I will leave the following recommendation for this question in the Cleanup topic area:
[Accept matt_mcswain 's comment]

Any objections should be posted here in the next 4 days. After that time, the question will be closed.

Kshitij Ahuja
EE Cleanup Volunteer

20120131-EE-VQP-002

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