version 1.312, 2004/12/23 17:47:33
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version 1.318, 2005/03/15 17:07:10
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package Apache::lonnavmaps; |
package Apache::lonnavmaps; |
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use strict; |
use strict; |
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use GDBM_File; |
use Apache::Constants qw(:common :http); |
use Apache::Constants qw(:common :http); |
use Apache::loncommon(); |
use Apache::loncommon(); |
use Apache::lonmenu(); |
use Apache::lonmenu(); |
Line 38 use Apache::lonlocal;
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Line 39 use Apache::lonlocal;
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use Apache::lonnet; |
use Apache::lonnet; |
use POSIX qw (floor strftime); |
use POSIX qw (floor strftime); |
use Data::Dumper; # for debugging, not always |
use Data::Dumper; # for debugging, not always |
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use Time::HiRes qw( gettimeofday tv_interval ); |
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# symbolic constants |
# symbolic constants |
sub SYMB { return 1; } |
sub SYMB { return 1; } |
Line 142 sub handler {
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Line 144 sub handler {
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sub real_handler { |
sub real_handler { |
my $r = shift; |
my $r = shift; |
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#my $t0=[&gettimeofday()]; |
# Handle header-only request |
# Handle header-only request |
if ($r->header_only) { |
if ($r->header_only) { |
if ($ENV{'browser.mathml'}) { |
if ($ENV{'browser.mathml'}) { |
Line 184 MENU
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Line 186 MENU
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$navstatus |
$navstatus |
MENU |
MENU |
} |
} |
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my $html=&Apache::lonxml::xmlbegin(); |
$r->print(<<"ENDSUBM"); |
$r->print(<<"ENDSUBM"); |
<html> |
$html |
<head> |
<head> |
<script type="text/javascript"> |
<script type="text/javascript"> |
function submitthis() { |
function submitthis() { |
Line 213 ENDSUBM
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Line 216 ENDSUBM
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$ENV{'user.error.msg'} = "$requrl:bre:0:0:Course not initialized"; |
$ENV{'user.error.msg'} = "$requrl:bre:0:0:Course not initialized"; |
return HTTP_NOT_ACCEPTABLE; |
return HTTP_NOT_ACCEPTABLE; |
} |
} |
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my $html=&Apache::lonxml::xmlbegin(); |
$r->print("<html><head>\n"); |
$r->print("$html<head>\n"); |
$r->print("<title>".&mt('Navigate Course Contents')."</title>"); |
$r->print("<title>".&mt('Navigate Course Contents')."</title>"); |
# ------------------------------------------------------------ Get query string |
# ------------------------------------------------------------ Get query string |
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['register','sort','showOnlyHomework']); |
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['register','sort','showOnlyHomework','postsymb']); |
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# ----------------------------------------------------- Force menu registration |
# ----------------------------------------------------- Force menu registration |
my $addentries=''; |
my $addentries=''; |
Line 405 ENDSUBM
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Line 408 ENDSUBM
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$r->print("<p><font size='+1'>This course is empty.</font></p>"); |
$r->print("<p><font size='+1'>This course is empty.</font></p>"); |
} |
} |
} |
} |
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#my $td=&tv_interval($t0); |
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#$r->print("<br />$td"); |
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$r->print("</body></html>"); |
$r->print("</body></html>"); |
$r->rflush(); |
$r->rflush(); |
Line 1428 sub render {
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Line 1433 sub render {
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#$currenturl=~s/^[^\/]+//; |
#$currenturl=~s/^[^\/]+//; |
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$here = $jump = &Apache::lonnet::symbread($currenturl); |
$here = $jump = &Apache::lonnet::symbread($currenturl); |
} |
} else { |
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my $last; |
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if (tie(my %hash,'GDBM_File',$ENV{'request.course.fn'}.'_symb.db', |
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&GDBM_READER(),0640)) { |
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$last=$hash{'last_known'}; |
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untie(%hash); |
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} |
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if ($last) { $here = $jump = $last; } |
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} |
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# Step three: Ensure the folders are open |
# Step three: Ensure the folders are open |
my $mapIterator = $navmap->getIterator(undef, undef, undef, 1); |
my $mapIterator = $navmap->getIterator(undef, undef, undef, 1); |
Line 2257 sub courseMapDefined {
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Line 2270 sub courseMapDefined {
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sub getIterator { |
sub getIterator { |
my $self = shift; |
my $self = shift; |
my $iterator = Apache::lonnavmaps::iterator->new($self, shift, shift, |
my $iterator = Apache::lonnavmaps::iterator->new($self, shift, shift, |
shift, undef, shift); |
shift, undef, shift, |
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shift, shift); |
return $iterator; |
return $iterator; |
} |
} |
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Line 2477 sub parmval_real {
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Line 2491 sub parmval_real {
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if (defined($courseopt)) { |
if (defined($courseopt)) { |
if (defined($$courseopt{$courselevelr})) { return $$courseopt{$courselevelr}; } |
if (defined($$courseopt{$courselevelr})) { return $$courseopt{$courselevelr}; } |
if (defined($$courseopt{$courselevelm})) { return $$courseopt{$courselevelm}; } |
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if (defined($$courseopt{$courselevel})) { return $$courseopt{$courselevel}; } |
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} |
} |
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# ----------------------------------------------------- third, check map parms |
# ----------------------------------------------------- third, check map parms |
Line 2495 sub parmval_real {
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Line 2507 sub parmval_real {
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$default=&Apache::lonnet::metadata($fn,'parameter_'.$meta_rwhat); |
$default=&Apache::lonnet::metadata($fn,'parameter_'.$meta_rwhat); |
if (defined($default)) { return $default} |
if (defined($default)) { return $default} |
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# --------------------------------------------------- fifth , cascade up parts |
# --------------------------------------------------- fifth, check more course |
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if (defined($courseopt)) { |
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if (defined($$courseopt{$courselevelm})) { return $$courseopt{$courselevelm}; } |
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if (defined($$courseopt{$courselevel})) { return $$courseopt{$courselevel}; } |
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} |
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# --------------------------------------------------- sixth , cascade up parts |
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my ($space,@qualifier)=split(/\./,$rwhat); |
my ($space,@qualifier)=split(/\./,$rwhat); |
my $qualifier=join('.',@qualifier); |
my $qualifier=join('.',@qualifier); |
Line 2524 you're not sure if $res is already an ob
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Line 2542 you're not sure if $res is already an ob
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resource appears multiple times in the course, only the first instance |
resource appears multiple times in the course, only the first instance |
will be returned. As a result, this is probably useful only for maps. |
will be returned. As a result, this is probably useful only for maps. |
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=item * B<retrieveResources>(map, filterFunc, recursive, bailout): |
=item * B<retrieveResources>(map, filterFunc, recursive, bailout, showall): |
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The map is a specification of a map to retreive the resources from, |
The map is a specification of a map to retreive the resources from, |
either as a url or as an object. The filterFunc is a reference to a |
either as a url or as an object. The filterFunc is a reference to a |
Line 2532 function that takes a resource object as
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Line 2550 function that takes a resource object as
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true if the resource should be included, or false if it should not |
true if the resource should be included, or false if it should not |
be. If recursive is true, the map will be recursively examined, |
be. If recursive is true, the map will be recursively examined, |
otherwise it will not be. If bailout is true, the function will return |
otherwise it will not be. If bailout is true, the function will return |
as soon as it finds a resource, if false it will finish. By default, |
as soon as it finds a resource, if false it will finish. If showall is |
the map is the top-level map of the course, filterFunc is a function |
true it will not hide maps that contain nothing but one other map. By |
that always returns 1, recursive is true, bailout is false. The |
default, the map is the top-level map of the course, filterFunc is a |
resources will be returned in a list containing the resource objects |
function that always returns 1, recursive is true, bailout is false, |
for the corresponding resources, with B<no structure information> in |
showall is false. The resources will be returned in a list containing |
the list; regardless of branching, recursion, etc., it will be a flat |
the resource objects for the corresponding resources, with B<no |
list. |
structure information> in the list; regardless of branching, |
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recursion, etc., it will be a flat list. |
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Thus, this is suitable for cases where you don't want the structure, |
Thus, this is suitable for cases where you don't want the structure, |
just a list of all resources. It is also suitable for finding out how |
just a list of all resources. It is also suitable for finding out how |
Line 2547 want to know is if I<any> resources matc
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Line 2566 want to know is if I<any> resources matc
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parameter will allow you to avoid potentially expensive enumeration of |
parameter will allow you to avoid potentially expensive enumeration of |
all matching resources. |
all matching resources. |
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=item * B<hasResource>(map, filterFunc, recursive): |
=item * B<hasResource>(map, filterFunc, recursive, showall): |
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Convience method for |
Convience method for |
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scalar(retrieveResources($map, $filterFunc, $recursive, 1)) > 0 |
scalar(retrieveResources($map, $filterFunc, $recursive, 1, $showall)) > 0 |
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which will tell whether the map has resources matching the description |
which will tell whether the map has resources matching the description |
in the filter function. |
in the filter function. |
Line 2585 sub retrieveResources {
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Line 2604 sub retrieveResources {
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if (!defined($recursive)) { $recursive = 1; } |
if (!defined($recursive)) { $recursive = 1; } |
my $bailout = shift; |
my $bailout = shift; |
if (!defined($bailout)) { $bailout = 0; } |
if (!defined($bailout)) { $bailout = 0; } |
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my $showall = shift; |
# Create the necessary iterator. |
# Create the necessary iterator. |
if (!ref($map)) { # assume it's a url of a map. |
if (!ref($map)) { # assume it's a url of a map. |
$map = $self->getResourceByUrl($map); |
$map = $self->getResourceByUrl($map); |
Line 2604 sub retrieveResources {
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Line 2623 sub retrieveResources {
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# Get an iterator. |
# Get an iterator. |
my $it = $self->getIterator($map->map_start(), $map->map_finish(), |
my $it = $self->getIterator($map->map_start(), $map->map_finish(), |
undef, $recursive); |
undef, $recursive, $showall); |
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my @resources = (); |
my @resources = (); |
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Line 2634 sub hasResource {
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Line 2653 sub hasResource {
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my $map = shift; |
my $map = shift; |
my $filterFunc = shift; |
my $filterFunc = shift; |
my $recursive = shift; |
my $recursive = shift; |
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my $showall = shift; |
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return scalar($self->retrieveResources($map, $filterFunc, $recursive, 1)) > 0; |
return scalar($self->retrieveResources($map, $filterFunc, $recursive, 1, $showall)) > 0; |
} |
} |
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1; |
1; |
Line 2901 sub new {
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Line 2921 sub new {
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Apache::lonnavmaps::iterator->new($self->{NAV_MAP}, $firstResource, |
Apache::lonnavmaps::iterator->new($self->{NAV_MAP}, $firstResource, |
$finishResource, $self->{FILTER}, |
$finishResource, $self->{FILTER}, |
$self->{ALREADY_SEEN}, |
$self->{ALREADY_SEEN}, |
$self->{CONDITION}, 0); |
$self->{CONDITION}, |
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$self->{FORCE_TOP}); |
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} |
} |
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Line 3064 sub next {
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Line 3085 sub next {
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$self->{RECURSIVE_ITERATOR} = |
$self->{RECURSIVE_ITERATOR} = |
Apache::lonnavmaps::iterator->new($self->{NAV_MAP}, $firstResource, |
Apache::lonnavmaps::iterator->new($self->{NAV_MAP}, $firstResource, |
$finishResource, $self->{FILTER}, |
$finishResource, $self->{FILTER}, |
$self->{ALREADY_SEEN}, $self->{CONDITION}); |
$self->{ALREADY_SEEN}, |
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$self->{CONDITION}, |
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$self->{FORCE_TOP}); |
} |
} |
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# If this is a blank resource, don't actually return it. |
# If this is a blank resource, don't actually return it. |