looks like while loop is much efficient in this case. im actually learning awk so im figuring out how to do this via awk but i guess i should stick to while loop in this case then. thanks
---------- Post updated at 06:29 PM ---------- Previous update was at 06:20 PM ----------
The tab delimiter was ignored, it opted to use space delimiter instead via while loop
Hello,
I have written some scripts that query the user and waits for keyboard input for an answer. I was wondering if there is any generic code snippets out there that would allow me to run this as a GUI. I am thinking of a simple dialogue box that would display the question and have a text... (1 Reply)
Evening all. I'm having a terrible time with a script I've been working on for a few days now...
Say I have a text file named top10song.tm2, with the following in it:
kernkraft 400
Imagine
i kissed a girl
Thriller
animals
hallelujah
paint it black
psychosocial
Oi to the world... (14 Replies)
Hi. This is code snipped I have. I am trying to play with signals...
int main(int argc, char *argv) {
int i;
sigset_t s; //declare set of signals
sigfillset(&s); //initializes the signal set to include all of the defined signals
int j;
for ( i = 0 ; i < 70 ; i++){
j... (6 Replies)
Hi,
I have a file with the following structure.
XXXXX...........
YYYYY...........
.................
..................
ZZZZZZ......
qwerty_start..............
..................
.................
..................
querty_end................
.............................. (1 Reply)
Hi,
I have a file with the following structure.
XXXXX...........
YYYYY...........
.................
..................
ZZZZZZ......
qwerty_start..............
..................
.................
..................
querty_end................
.............................. (3 Replies)
After a memory upgrade all network interfaces are misconfigued. How do i resolve this issue. Below are some out puts.thanks.
ifconfig: plumb: SIOCLIFADDIF: eg000g0:2: no such interface
# ifconfig eg1000g0:2 plumb
ifconfig: plumb: SIOCLIFADDIF: eg1000g0:2: no such interface
# ifconfig... (2 Replies)
perl -e '@stat=stat("/etc/passwd");$now_string=localtime($stat);print $ARGV.":$now_string\n"' ./file_name
Please if anyone can describe it.
Thanks in advance (1 Reply)
Hello,
I am attaching a code snippet. Some of the variables are set in earlier code like count, arrays harr1, harr2, barr1 and barr2. The code below gives syntax errors. I am very new to Bash.
for (( i=0; i<=$(( $count -1 )); i++ ))
do
#Now read the element at barr2 location i. Also find... (2 Replies)
Discussion started by: ngabrani
2 Replies
LEARN ABOUT DEBIAN
dbix::class::filtercolumn
DBIx::Class::FilterColumn(3pm) User Contributed Perl Documentation DBIx::Class::FilterColumn(3pm)NAME
DBIx::Class::FilterColumn - Automatically convert column data
SYNOPSIS
In your Schema or DB class add "FilterColumn" to the top of the component list.
__PACKAGE__->load_components(qw( FilterColumn ... ));
Set up filters for the columns you want to convert.
__PACKAGE__->filter_column( money => {
filter_to_storage => 'to_pennies',
filter_from_storage => 'from_pennies',
});
sub to_pennies { $_[1] * 100 }
sub from_pennies { $_[1] / 100 }
1;
DESCRIPTION
This component is meant to be a more powerful, but less DWIM-y, DBIx::Class::InflateColumn. One of the major issues with said component is
that it only works with references. Generally speaking anything that can be done with DBIx::Class::InflateColumn can be done with this
component.
METHODS
filter_column
__PACKAGE__->filter_column( colname => {
filter_from_storage => 'method'|&coderef,
filter_to_storage => 'method'|&coderef,
})
This is the method that you need to call to set up a filtered column. It takes exactly two arguments; the first being the column name the
second being a hash reference with "filter_from_storage" and "filter_to_storage" set to either a method name or a code reference. In either
case the filter is invoked as:
$row_obj->$filter_specification ($value_to_filter)
with $filter_specification being chosen depending on whether the $value_to_filter is being retrieved from or written to permanent storage.
If a specific directional filter is not specified, the original value will be passed to/from storage unfiltered.
get_filtered_column
$obj->get_filtered_column('colname')
Returns the filtered value of the column
set_filtered_column
$obj->set_filtered_column(colname => 'new_value')
Sets the filtered value of the column
EXAMPLE OF USE
Some databases have restrictions on values that can be passed to boolean columns, and problems can be caused by passing value that perl
considers to be false (such as "undef").
One solution to this is to ensure that the boolean values are set to something that the database can handle - such as numeric zero and one,
using code like this:-
__PACKAGE__->filter_column(
my_boolean_column => {
filter_to_storage => sub { $_[1] ? 1 : 0 },
}
);
In this case the "filter_from_storage" is not required, as just passing the database value through to perl does the right thing.
perl v5.14.2 2010-12-25 DBIx::Class::FilterColumn(3pm)