Re: [Dbix-class] select specific columns on resultset
Can you show us the complete piece of code for the search/output, and the
class definitions? That trace looks like you first asked for Id only,
and then later did another query, or called a relation method on the
result .
This code:
my @recs=$self-db-resultset($self-table)-search({},{columns = [qw/
id/ ],},)-all;
foreach my $row (@recs) {
print $row-Name;
}
Should output undefs (or possibly a warning that you didnt fetch that
column, I forget).
Jess
On Wed, 10 Apr 2013 10:25:14 +0100, max maxt...@gmail.com wrote:
Ok, sorry, I copied the wrong example, I tried with:
my @recs=$self-db-resultset($self-table)-search({},{columns = [qw/
id
/],},)-all;
but I can see the Name column for example in the foreach loop. After some
debugging on mysql I found some stranges:
67 Query SELECT me.id FROM ReportTemplates me
67 Query SELECT me.Name FROM ReportTemplates me WHERE ( me.id =
'124' )
67 Query SELECT me.Name FROM ReportTemplates me WHERE ( me.id =
'125' )
67 Query SELECT me.Name FROM ReportTemplates me WHERE ( me.id =
'126' )
67 Query SELECT me.Name FROM ReportTemplates me WHERE ( me.id =
'127' )
67 Query SELECT me.Name FROM ReportTemplates me WHERE ( me.id =
'135' )
67 Query SELECT me.Name FROM ReportTemplates me WHERE ( me.id =
'136' )
67 Query SELECT me.Name FROM ReportTemplates me WHERE ( me.id =
'146' )
67 Query SELECT me.Name FROM ReportTemplates me WHERE ( me.id =
'150' )
67 Query SELECT me.Name FROM ReportTemplates me WHERE ( me.id =
'177' )
67 Query SELECT me.Name FROM ReportTemplates me WHERE ( me.id =
'184' )
67 Query SELECT me.Name FROM ReportTemplates me WHERE ( me.id =
'192' )
67 Query SELECT me.Name FROM ReportTemplates me WHERE ( me.id =
'193' )
67 Query SELECT me.id, me.OperationId, me.Name, me.Description,
me.Content, me.lastLogin, me.prevLogin FROM ReportTemplates me WHERE (
me.id= '124' )
67 Query SELECT me.id, me.OperationId, me.Name, me.Description,
me.Content, me.lastLogin, me.prevLogin FROM ReportTemplates me WHERE (
me.id= '125' )
67 Query SELECT me.id, me.OperationId, me.Name, me.Description,
me.Content, me.lastLogin, me.prevLogin FROM ReportTemplates me WHERE (
me.id= '126' )
67 Query SELECT me.id, me.OperationId, me.Name, me.Description,
me.Content, me.lastLogin, me.prevLogin FROM ReportTemplates me WHERE (
me.id= '127' )
67 Query SELECT me.id, me.OperationId, me.Name, me.Description,
me.Content, me.lastLogin, me.prevLogin FROM ReportTemplates me WHERE (
me.id= '135' )
67 Query SELECT me.id, me.OperationId, me.Name, me.Description,
me.Content, me.lastLogin, me.prevLogin FROM ReportTemplates me WHERE (
me.id= '136' )
67 Query SELECT me.id, me.OperationId, me.Name, me.Description,
me.Content, me.lastLogin, me.prevLogin FROM ReportTemplates me WHERE (
me.id= '146' )
67 Query SELECT me.id, me.OperationId, me.Name, me.Description,
me.Content, me.lastLogin, me.prevLogin FROM ReportTemplates me WHERE (
me.id= '150' )
67 Query SELECT me.id, me.OperationId, me.Name, me.Description,
me.Content, me.lastLogin, me.prevLogin FROM ReportTemplates me WHERE (
me.id= '177' )
67 Query SELECT me.id, me.OperationId, me.Name, me.Description,
me.Content, me.lastLogin, me.prevLogin FROM ReportTemplates me WHERE (
me.id= '184' )
the first query is correct but the others ? I suspect that is not related
with dbix, but why I can see column if I have not specified them ?
thanks
2013/4/10 Peter Rabbitson rabbit+d...@rabbit.us
On Tue, Apr 09, 2013 at 03:58:53PM +0200, max wrote:
Thanks for the answer, this piece of code is inside a perl sub, I
tried
to
extract the array elements as:
foreach my $row (@recs)
{
my $id=$row-id;
my $name=$row-Name;
print MYFILE recs name: $name, id: $id\n\n;
}
and I can see the Name element for example.
Well... you asked for it didn't you? (in fact you asked twice)
columns = [qw/id Name OperationId Name /]
I am at this point confused what is your problem exactly...
I tried to insert the DBIC_TRACE
in the sub ouputting it to a file but it's always empty (
$self-db-storage-debugfh(IO::File-new('file','w'));), is there
another
way to use it ?
When you use it this way you also need to -storage-debug(1) for things
to start working. During debugging DBIC_TRACE=1 with dump to screen is
much more common, hence why noone answered quuckly ;)
Cheers
___
List: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/dbix-class
IRC: irc.perl.org#dbix-class
SVN: http://dev.catalyst.perl.org/repos/bast/DBIx-Class/
Searchable Archive:
http://www.grokbase.com/group/dbix-class@lists.scsys.co.uk
--
Using Opera's revolutionary e-mail client: http://www.opera.com/m2/
___
List: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/dbix-class
IRC: irc.perl.org#dbix-class
SVN: http://dev.catalyst.perl.org/repos/bast/DBIx-Class/
Searchable Archive:
Re: [Dbix-class] select specific columns on resultset
Ok, sorry, I copied the wrong example, I tried with:
my @recs=$self-db-resultset($self-table)-search({},{columns = [qw/ id
/],},)-all;
but I can see the Name column for example in the foreach loop. After some
debugging on mysql I found some stranges:
67 Query SELECT me.id FROM ReportTemplates me
67 Query SELECT me.Name FROM ReportTemplates me WHERE ( me.id = '124' )
67 Query SELECT me.Name FROM ReportTemplates me WHERE ( me.id = '125' )
67 Query SELECT me.Name FROM ReportTemplates me WHERE ( me.id = '126' )
67 Query SELECT me.Name FROM ReportTemplates me WHERE ( me.id = '127' )
67 Query SELECT me.Name FROM ReportTemplates me WHERE ( me.id = '135' )
67 Query SELECT me.Name FROM ReportTemplates me WHERE ( me.id = '136' )
67 Query SELECT me.Name FROM ReportTemplates me WHERE ( me.id = '146' )
67 Query SELECT me.Name FROM ReportTemplates me WHERE ( me.id = '150' )
67 Query SELECT me.Name FROM ReportTemplates me WHERE ( me.id = '177' )
67 Query SELECT me.Name FROM ReportTemplates me WHERE ( me.id = '184' )
67 Query SELECT me.Name FROM ReportTemplates me WHERE ( me.id = '192' )
67 Query SELECT me.Name FROM ReportTemplates me WHERE ( me.id = '193' )
67 Query SELECT me.id, me.OperationId, me.Name, me.Description,
me.Content, me.lastLogin, me.prevLogin FROM ReportTemplates me WHERE (
me.id= '124' )
67 Query SELECT me.id, me.OperationId, me.Name, me.Description,
me.Content, me.lastLogin, me.prevLogin FROM ReportTemplates me WHERE (
me.id= '125' )
67 Query SELECT me.id, me.OperationId, me.Name, me.Description,
me.Content, me.lastLogin, me.prevLogin FROM ReportTemplates me WHERE (
me.id= '126' )
67 Query SELECT me.id, me.OperationId, me.Name, me.Description,
me.Content, me.lastLogin, me.prevLogin FROM ReportTemplates me WHERE (
me.id= '127' )
67 Query SELECT me.id, me.OperationId, me.Name, me.Description,
me.Content, me.lastLogin, me.prevLogin FROM ReportTemplates me WHERE (
me.id= '135' )
67 Query SELECT me.id, me.OperationId, me.Name, me.Description,
me.Content, me.lastLogin, me.prevLogin FROM ReportTemplates me WHERE (
me.id= '136' )
67 Query SELECT me.id, me.OperationId, me.Name, me.Description,
me.Content, me.lastLogin, me.prevLogin FROM ReportTemplates me WHERE (
me.id= '146' )
67 Query SELECT me.id, me.OperationId, me.Name, me.Description,
me.Content, me.lastLogin, me.prevLogin FROM ReportTemplates me WHERE (
me.id= '150' )
67 Query SELECT me.id, me.OperationId, me.Name, me.Description,
me.Content, me.lastLogin, me.prevLogin FROM ReportTemplates me WHERE (
me.id= '177' )
67 Query SELECT me.id, me.OperationId, me.Name, me.Description,
me.Content, me.lastLogin, me.prevLogin FROM ReportTemplates me WHERE (
me.id= '184' )
the first query is correct but the others ? I suspect that is not related
with dbix, but why I can see column if I have not specified them ?
thanks
2013/4/10 Peter Rabbitson rabbit+d...@rabbit.us
On Tue, Apr 09, 2013 at 03:58:53PM +0200, max wrote:
Thanks for the answer, this piece of code is inside a perl sub, I tried
to
extract the array elements as:
foreach my $row (@recs)
{
my $id=$row-id;
my $name=$row-Name;
print MYFILE recs name: $name, id: $id\n\n;
}
and I can see the Name element for example.
Well... you asked for it didn't you? (in fact you asked twice)
columns = [qw/id Name OperationId Name /]
I am at this point confused what is your problem exactly...
I tried to insert the DBIC_TRACE
in the sub ouputting it to a file but it's always empty (
$self-db-storage-debugfh(IO::File-new('file','w'));), is there
another
way to use it ?
When you use it this way you also need to -storage-debug(1) for things
to start working. During debugging DBIC_TRACE=1 with dump to screen is
much more common, hence why noone answered quuckly ;)
Cheers
___
List: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/dbix-class
IRC: irc.perl.org#dbix-class
SVN: http://dev.catalyst.perl.org/repos/bast/DBIx-Class/
Searchable Archive:
http://www.grokbase.com/group/dbix-class@lists.scsys.co.uk
___
List: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/dbix-class
IRC: irc.perl.org#dbix-class
SVN: http://dev.catalyst.perl.org/repos/bast/DBIx-Class/
Searchable Archive: http://www.grokbase.com/group/dbix-class@lists.scsys.co.uk
Re: [Dbix-class] select specific columns on resultset
On Tue, Apr 09, 2013 at 03:19:07PM +0200, max wrote:
Hi all,
I'm new to DBIx, I'm trying to retrieve only a subset of columns from a
result set:
my @recs=$self-db-resultset($self-table)-search({},{columns = [qw/ id
Name OperationId Name /],},)-all;
The above looks correct
but the result contains all the columns,
How did you determine this?
Also what does the DBIC_TRACE=1 look like?
Cheers
___
List: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/dbix-class
IRC: irc.perl.org#dbix-class
SVN: http://dev.catalyst.perl.org/repos/bast/DBIx-Class/
Searchable Archive: http://www.grokbase.com/group/dbix-class@lists.scsys.co.uk
Re: [Dbix-class] select specific columns on resultset
On Tue, Apr 09, 2013 at 03:19:07PM +0200, max wrote: I'm new to DBIx, It is DBIx::Class (or DBIC for short). There are hundreds of unrelated modules in the DBIx:: namespace. Cheers ___ List: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/dbix-class IRC: irc.perl.org#dbix-class SVN: http://dev.catalyst.perl.org/repos/bast/DBIx-Class/ Searchable Archive: http://www.grokbase.com/group/dbix-class@lists.scsys.co.uk
Re: [Dbix-class] select specific columns on resultset
Thanks for the answer, this piece of code is inside a perl sub, I tried to
extract the array elements as:
foreach my $row (@recs)
{
my $id=$row-id;
my $name=$row-Name;
print MYFILE recs name: $name, id: $id\n\n;
}
and I can see the Name element for example. I tried to insert the DBIC_TRACE
in the sub ouputting it to a file but it's always empty (
$self-db-storage-debugfh(IO::File-new('file','w'));), is there another
way to use it ?
2013/4/9 Peter Rabbitson rabbit+d...@rabbit.us
On Tue, Apr 09, 2013 at 03:19:07PM +0200, max wrote:
Hi all,
I'm new to DBIx, I'm trying to retrieve only a subset of columns from a
result set:
my @recs=$self-db-resultset($self-table)-search({},{columns = [qw/
id
Name OperationId Name /],},)-all;
The above looks correct
but the result contains all the columns,
How did you determine this?
Also what does the DBIC_TRACE=1 look like?
Cheers
___
List: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/dbix-class
IRC: irc.perl.org#dbix-class
SVN: http://dev.catalyst.perl.org/repos/bast/DBIx-Class/
Searchable Archive:
http://www.grokbase.com/group/dbix-class@lists.scsys.co.uk
___
List: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/dbix-class
IRC: irc.perl.org#dbix-class
SVN: http://dev.catalyst.perl.org/repos/bast/DBIx-Class/
Searchable Archive: http://www.grokbase.com/group/dbix-class@lists.scsys.co.uk
Re: [Dbix-class] select specific columns on resultset
On Tue, Apr 09, 2013 at 03:58:53PM +0200, max wrote:
Thanks for the answer, this piece of code is inside a perl sub, I tried to
extract the array elements as:
foreach my $row (@recs)
{
my $id=$row-id;
my $name=$row-Name;
print MYFILE recs name: $name, id: $id\n\n;
}
and I can see the Name element for example.
Well... you asked for it didn't you? (in fact you asked twice)
columns = [qw/id Name OperationId Name /]
I am at this point confused what is your problem exactly...
I tried to insert the DBIC_TRACE
in the sub ouputting it to a file but it's always empty (
$self-db-storage-debugfh(IO::File-new('file','w'));), is there another
way to use it ?
When you use it this way you also need to -storage-debug(1) for things
to start working. During debugging DBIC_TRACE=1 with dump to screen is
much more common, hence why noone answered quuckly ;)
Cheers
___
List: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/dbix-class
IRC: irc.perl.org#dbix-class
SVN: http://dev.catalyst.perl.org/repos/bast/DBIx-Class/
Searchable Archive: http://www.grokbase.com/group/dbix-class@lists.scsys.co.uk
