Database Reference
In-Depth Information
}
# Default image storage directory and pathname separator
# *** (CHANGE THESE AS NECESSARY) ***
my
$image_dir
=
"/usr/local/lib/mcb/images"
;
# The location should NOT be within the web server document tree
my
$path_sep
=
"/"
;
# Reset directory and pathname separator for Windows/DOS
if
(
$^O
=~
/^MSWin/i
||
$^O
=~
/^dos/
)
{
$image_dir
=
"C:\\mcb\\images"
;
$path_sep
=
"\\"
;
}
my
$name
=
param
(
"name"
);
my
$location
=
param
(
"location"
);
# make sure image name was specified
defined
(
$name
)
or
error
(
"image name is missing"
);
# use default of "db" if the location is not specified or is
# not "db" or "fs"
(
defined
(
$location
)
&&
$location
eq
"fs"
)
or
$location
=
"db"
;
my
$dbh
=
Cookbook::
connect
();
my
(
$type
,
$data
);
# If location is "db", get image data and MIME type from image table.
# If location is "fs", get MIME type from image table and read the image
# data from the filesystem.
if
(
$location
eq
"db"
)
{
(
$type
,
$data
)
=
$dbh
->
selectrow_array
(
"SELECT type, data FROM image WHERE name = ?"
,
undef
,
$name
)
or
error
(
"Cannot find image with name $name"
);
}
else
{
$type
=
$dbh
->
selectrow_array
(
"SELECT type FROM image WHERE name = ?"
,
undef
,
$name
)
or
error
(
"Cannot find image with name $name"
);
my
$fh
=
new
FileHandle
;
my
$image_path
=
$image_dir
.
$path_sep
.
$name
;
open
(
$fh
,
$image_path
)
or
error
(
"Cannot read $image_path: $!"
);
binmode
(
$fh
);
# helpful for binary data
