Re: [PHP-DB] Re: splitting CSV rows into multiple SQL inserts?
On 6/22/05, Doug Hernandez [EMAIL PROTECTED] wrote:
I can't help but wonder why you're using the line_order field at all.
Can't you nix it and count the number of records with each order# as a
stored procedure or some such? It would make your entire order system
easier.
Also, you may think about capturing that first row in its own list:
$fp = fopen(/tmp/.$txt_file, r) ;
$headers = fgets($fp,1024) ;
while( $line = fgets( $fp,1024) ) {
$row[] = csv_explode($line);
$table[][] = $row[]
} // Now you've got your whole table in $table[][]
In your csv_explode function, you can use split() to make things
easier on yourself:
$out[] = split(',' $line, 7) ; // Your file has 7 fields, so don't overrun
that
Even if you insist on calculating an order_line, you can still use
split. Just push a count onto the end of the list.
$out[] = $order_line ; // according to php.net, array_push() shouldn't be used
I strongly urge you whack the order_line. Or maybe I can bother you
to give me more info about it? It's hard to judge without being
closer to the situation.
Peace,
Doug
PS: I'm new to the list. What address will post this to the entire user
group?
On 6/22/05, Vince LaMonica [EMAIL PROTECTED] wrote:
I wanted to clarify my question from yesterday, as re-reading it, it
sounds quite confusing.
I have a CVS file that has order header *and* line item info on each line,
like:
1110,6/20/2005,Jan Doe,123 Main St,,1,Book
1116,6/22/2005,Jim Smith,44 Here St,19191980,1,CD
1116,6/22/2005,Jim Smith,44 Here St,77736222,1,Tape
The above is actually two orders - one with one line item, and the 2nd
with two line items. I need to insert data from those lines into two
tables:
insert into order_header (o_num, date, name, addr)
values ('1110','6/20/2005','Jan Doe','123 Main St'),
('1116','6/22/2005','Jim Smith','44 Here St');
insert into line_items (o_num, item_num, quan, desc, line_order)
values ('1110','','1','Book','1'),
('1116','19191980','1','CD','1'),
('1116','77736222','1','Tape','2');
Note the line_order field - it needs to increment per order for each line
item added to the line_items table. To complicate matters a bit, I'm
actually massaging the data before inserting [eg: splitting the name field
from the CSV into two fields for the mysql db, formatting the date field
for mysql, etc].
I'm currently doing this process via a form where a user uploads the CVS
file [created with Excel, complete with the first row being made up the
Excel table's header].
I currently do something like this:
$fp = fopen(/tmp/.$txt_file, r);
while ($line = fgets($fp,1024))
{
$i++
if ($i 1) { // skip excel header row
list ($o_num, $date, $name, $addr, $item_num, $quan, $desc) =
csv_explode($line);
// i can now print the vars, but i get duplicate header records when
// there are multiple line items for a particular order. also, i
// need to generate the line_order field for insertion into the
// line_items table
}
}
If I try and do any processing up where my comments are, well, the
comments tell you what happen. I know I am reading this file line by line,
so I can't compare order numbers [o_num] to group multiple line item
orders together. So how do I go about doing that? Read the entire CSV into
an array? How can that help? Any tips would be most appreciated!
Thanks!
/vjl/
p/s - FYI, cvs_explode() is:
function csv_explode($str, $delim = ',', $qual = \)
{
$len = strlen($str);
$inside = false;
$word = '';
for ($i = 0; $i $len; ++$i) {
if ($str[$i]==$delim !$inside) {
$out[] = $word;
$word = '';
} else if ($inside $str[$i]==$qual ($i$len
$str[$i+1]==$qual)) {
$word .= $qual;
++$i;
} else if ($str[$i] == $qual) {
$inside = !$inside;
} else {
$word .= $str[$i];
}
}
$out[] = $word;
return $out;
}
--
PHP Database Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
--
Douglas Hernandez
(612) 229-9684
--
Douglas Hernandez
(612) 229-9684
--
PHP Database Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP-DB] Re: splitting CSV rows into multiple SQL inserts?
I can't help but wonder why you're using the line_order field at all.
Can't you nix it and count the number of records with each order# as a
stored procedure or some such? It would make your entire order system
easier.
Also, you may think about capturing that first row in its own list:
$fp = fopen(/tmp/.$txt_file, r) ;
$headers = fgets($fp,1024) ;
while( $line = fgets( $fp,1024) ) {
$row[] = csv_explode($line);
$table[][] = $row[]
} // Now you've got your whole table in $table[][]
In your csv_explode function, you can use split() to make things
easier on yourself:
$out[] = split(',' $line, 7) ; // Your file has 7 fields, so don't overrun that
Even if you insist on calculating an order_line, you can still use
split. Just push a count onto the end of the list.
$out[] = $order_line ; // according to php.net, array_push() shouldn't be used
I strongly urge you whack the order_line. Or maybe I can bother you
to give me more info about it? It's hard to judge without being
closer to the situation.
Peace,
Doug
On 6/22/05, Doug Hernandez [EMAIL PROTECTED] wrote:
On 6/22/05, Doug Hernandez [EMAIL PROTECTED] wrote:
I can't help but wonder why you're using the line_order field at all.
Can't you nix it and count the number of records with each order# as a
stored procedure or some such? It would make your entire order system
easier.
Also, you may think about capturing that first row in its own list:
$fp = fopen(/tmp/.$txt_file, r) ;
$headers = fgets($fp,1024) ;
while( $line = fgets( $fp,1024) ) {
$row[] = csv_explode($line);
$table[][] = $row[]
} // Now you've got your whole table in $table[][]
In your csv_explode function, you can use split() to make things
easier on yourself:
$out[] = split(',' $line, 7) ; // Your file has 7 fields, so don't overrun
that
Even if you insist on calculating an order_line, you can still use
split. Just push a count onto the end of the list.
$out[] = $order_line ; // according to php.net, array_push() shouldn't be
used
I strongly urge you whack the order_line. Or maybe I can bother you
to give me more info about it? It's hard to judge without being
closer to the situation.
Peace,
Doug
PS: I'm new to the list. What address will post this to the entire user
group?
On 6/22/05, Vince LaMonica [EMAIL PROTECTED] wrote:
I wanted to clarify my question from yesterday, as re-reading it, it
sounds quite confusing.
I have a CVS file that has order header *and* line item info on each line,
like:
1110,6/20/2005,Jan Doe,123 Main St,,1,Book
1116,6/22/2005,Jim Smith,44 Here St,19191980,1,CD
1116,6/22/2005,Jim Smith,44 Here St,77736222,1,Tape
The above is actually two orders - one with one line item, and the 2nd
with two line items. I need to insert data from those lines into two
tables:
insert into order_header (o_num, date, name, addr)
values ('1110','6/20/2005','Jan Doe','123 Main St'),
('1116','6/22/2005','Jim Smith','44 Here St');
insert into line_items (o_num, item_num, quan, desc, line_order)
values ('1110','','1','Book','1'),
('1116','19191980','1','CD','1'),
('1116','77736222','1','Tape','2');
Note the line_order field - it needs to increment per order for each line
item added to the line_items table. To complicate matters a bit, I'm
actually massaging the data before inserting [eg: splitting the name field
from the CSV into two fields for the mysql db, formatting the date field
for mysql, etc].
I'm currently doing this process via a form where a user uploads the CVS
file [created with Excel, complete with the first row being made up the
Excel table's header].
I currently do something like this:
$fp = fopen(/tmp/.$txt_file, r);
while ($line = fgets($fp,1024))
{
$i++
if ($i 1) { // skip excel header row
list ($o_num, $date, $name, $addr, $item_num, $quan, $desc) =
csv_explode($line);
// i can now print the vars, but i get duplicate header records when
// there are multiple line items for a particular order. also, i
// need to generate the line_order field for insertion into the
// line_items table
}
}
If I try and do any processing up where my comments are, well, the
comments tell you what happen. I know I am reading this file line by line,
so I can't compare order numbers [o_num] to group multiple line item
orders together. So how do I go about doing that? Read the entire CSV into
an array? How can that help? Any tips would be most appreciated!
Thanks!
/vjl/
p/s - FYI, cvs_explode() is:
function csv_explode($str, $delim = ',', $qual = \)
{
$len = strlen($str);
$inside = false;
$word = '';
for ($i = 0; $i $len; ++$i
[PHP-DB] mysql_connect() with a multi-file format
I'm new to PHP, due to having been all hard-nosed and obtuse about using Perl/CGI. I've been looking for a good way to pick up php tricks and what-nots, so I joined the list. That said, I have an immediate question. I have a multi-file script: main.php requires_once config.php, and so on. I'd like to have a data.php file that handles function wrappers for database and also establishes a connection to the db. I read in the php.net manual that the connection closes automatically when the script exits. Does this mean I can't open a db connection in one file and pass the link around from function to function? ie: require_once 'data.php'; // data.php contains a mysql_connect() // after this line, is my link closed? require_once 'blah.php' ; OR: require_once 'data.php'; // with wrapper data_connection() $save_this_link = data_connection() ; // will this work? some_function( $save_this_link ) ; //etc. -- Douglas Hernandez (612) 229-9684 -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
