/[A3C]/lib/Strix.pm
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Annotation of /lib/Strix.pm

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Revision 213 - (hide annotations)
Fri Jun 20 20:44:18 2008 UTC (15 years, 10 months ago) by dpavlin
File size: 8980 byte(s)
add cache to Strix for performance reasons
1 dpavlin 167 package Strix;
2    
3     use strict;
4     use warnings;
5    
6 dpavlin 168 use base qw(Jifty::Object Class::Accessor::Fast);
7 dpavlin 174 __PACKAGE__->mk_accessors( qw(instance uid) );
8 dpavlin 167
9     use DBI;
10     use Data::Dump qw/dump/;
11 dpavlin 168 use Carp qw/confess/;
12 dpavlin 181 use Jifty;
13 dpavlin 167
14 dpavlin 213 use File::Slurp;
15     use JSON::XS;
16     use Carp qw/confess/;
17    
18 dpavlin 168 our $debug = 0;
19    
20 dpavlin 167 =head1 NAME
21    
22     Strix
23    
24     =head1 METHODS
25    
26 dpavlin 168 =head2 new
27    
28 dpavlin 174 my $strix = Strix->new({ instance => 'os-test0604-zg' });
29 dpavlin 168
30 dpavlin 167 =head2 dbh
31    
32 dpavlin 174 my $dbh = Strix->dbh( $strix_instance );
33 dpavlin 167
34 dpavlin 168 my $dbh = $strix->dbh;
35    
36 dpavlin 167 =cut
37    
38 dpavlin 174 our $instance_dbh;
39 dpavlin 193 our @instances_active;
40 dpavlin 171
41 dpavlin 167 sub dbh {
42     my $self = shift;
43    
44 dpavlin 177 my $instance = shift || ref($self) && $self->instance || confess "no instance";
45 dpavlin 167
46 dpavlin 174 return $instance_dbh->{$instance} if $instance_dbh->{$instance};
47 dpavlin 171
48 dpavlin 167 my $config = Jifty->config->app('strix') or die "need strix config";
49     my $database = $config->{database} or die "no strix.database in config";
50    
51     Jifty->log->debug("using config ", dump( $database ));
52    
53     my $dsn =
54 dpavlin 174 'DBI:Pg:dbname=' . $instance .
55 dpavlin 167 ';host=' . $database->{host} .
56     ';port=' . $database->{port};
57    
58 dpavlin 174 Jifty->log->info("Connect to instance $instance with dsn $dsn");
59 dpavlin 167
60 dpavlin 185 my $dbh = DBI->connect( $dsn, $database->{user}, $database->{passwd} ) or die "$DBI::errstr\n";
61 dpavlin 167
62 dpavlin 188 # force database to send us back UTF-8 no metter what it's encoding
63     $dbh->do("set client_encoding='utf-8'");
64     $dbh->{pg_enable_utf8} = 1;
65    
66 dpavlin 174 $instance_dbh->{$instance} = $dbh;
67 dpavlin 193 push @instances_active, $instance;
68 dpavlin 171
69 dpavlin 193 if ( $#instances_active > 5 ) {
70     my $i = shift @instances_active;
71     warn "## remove connection to instance $instance\n";
72     delete( $instance_dbh->{$i} );
73     }
74    
75 dpavlin 174 warn "## instance_dbh = ",dump( $instance_dbh ) if $debug;
76 dpavlin 171
77 dpavlin 167 return $dbh;
78     }
79    
80 dpavlin 168 =head2 category
81    
82     my $category = Strix->category( $url );
83    
84     =cut
85    
86     sub category {
87     my $self = shift;
88    
89     my $url = shift || confess "no url";
90    
91     # sysinc/profiles.php
92     my $sth = $self->dbh->prepare(qq{
93     SELECT kategorija.*, lang.langid, lang.locale, template.tfilename, template.tflags, site.naziv as sitename, site.admin_mail, site.address, site.root as site_root, getPathFromNav(kategorija.id) as path, site.ordstr as site_ordstr FROM kategorija, template, site, lang WHERE kategorija.url = ? AND kategorija.template_id = template.id AND kategorija.site_id = site.id AND lang.id = kategorija.lang
94     });
95     $sth->execute($url);
96    
97     my $category = $sth->fetchrow_hashref() or die "can't fetch category $url";
98     return $category;
99     }
100    
101     =head2 layout
102    
103     my $layout = $strix->layout( $url );
104    
105     =cut
106    
107     sub layout {
108     my $self = shift;
109    
110     my $url = shift || confess "no url";
111    
112     my $dbh = $self->dbh;
113     my $category = $self->category( $url );
114    
115     my $sth = $dbh->prepare(qq{
116     SELECT template.tfilename, template.tflags FROM template WHERE id = ?
117     });
118     $sth->execute( $category->{template_id} );
119    
120     my $template = $sth->fetchrow_hashref() or die "can't fetch template";
121    
122     warn "template = ",dump( $template ) if $debug;
123    
124     my $page;
125     warn "### free layout...\n" if $debug;
126    
127     # index.php
128     $sth = $dbh->prepare(qq{
129     SELECT layout_id, module_id, pozicija, module_args, name, fname, notitle, class_name
130     FROM pre_layout, modules
131     WHERE id=module_id AND ? = template_id AND redoslijed >= 0
132     ORDER BY redoslijed DESC
133     });
134     $sth->execute( $category->{template_id} );
135    
136 dpavlin 173 sub module_args {
137     my $row = shift;
138     return undef unless $row->{module_args};
139     my $args;
140     foreach my $a ( split(/\&/, $row->{module_args} ) ) {
141     $args->{$1} = $2 if $a =~ m/^(.+)=(.+)$/;
142     }
143     return $args;
144     }
145    
146 dpavlin 168 while (my $row = $sth->fetchrow_hashref() ) {
147     warn dump( $row ) if $debug;
148 dpavlin 173 push @{ $page->{free} }, { $row->{name} => module_args( $row ) };
149 dpavlin 168 }
150    
151     warn "### pre layout...\n" if $debug;
152    
153     $sth = $dbh->prepare(qq{
154     SELECT
155     l.id as layout_id, l.user_id, l.kategorija_id, l.module_id, l.pozicija, l.redoslijed, l.module_args, l.state, l.notitle,
156     m.name, m.fname, m.hidden, m.nocache, m.pos, m.class_name,
157     acl_module.acl_register_id
158     FROM layout as l, modules as m LEFT JOIN acl_module ON (acl_module.modules_id = m.id)
159     WHERE l.user_id=?
160     AND l.kategorija_id=?
161     AND m.id=l.module_id
162     ORDER BY pozicija,redoslijed DESC
163     });
164     $sth->execute( 1, $category->{id} );
165    
166     while (my $row = $sth->fetchrow_hashref() ) {
167     warn dump( $row ) if $debug;
168 dpavlin 173 push @{ $page->{pre}->{ $row->{pos} } }, { $row->{name} => module_args( $row ) };
169 dpavlin 168 }
170    
171     warn "### post layout...\n" if $debug;
172    
173     $sth = $dbh->prepare(qq{
174     SELECT layout_id, module_id, pozicija, module_args, name, notitle
175     FROM pre_layout, modules
176     WHERE id=module_id AND ? = template_id AND redoslijed < 0
177     ORDER BY redoslijed DESC
178     });
179     $sth->execute( $category->{template_id} );
180    
181     while (my $row = $sth->fetchrow_hashref() ) {
182     warn dump( $row ) if $debug;
183 dpavlin 173 push @{ $page->{post}->{ $row->{pozicija} } }, { $row->{name} => module_args( $row ) };
184 dpavlin 168 }
185    
186     return $page;
187    
188     }
189    
190 dpavlin 193 =head2 sites
191 dpavlin 169
192 dpavlin 193 my @sites = $strix->sites;
193 dpavlin 169
194     =cut
195    
196 dpavlin 193 sub sites {
197 dpavlin 169 my $self = shift;
198    
199 dpavlin 193 my @sites;
200 dpavlin 169
201 dpavlin 193 my $sth = $self->dbh->prepare(
202     "SELECT *, coalesce(( length(ordstr)/3 ) - 1,0) AS depth FROM site ORDER BY ordstr"
203     );
204     $sth->execute;
205 dpavlin 169
206     while (my $row = $sth->fetchrow_hashref() ) {
207 dpavlin 193 push @sites, $row;
208 dpavlin 169 }
209    
210 dpavlin 193 return @sites;
211 dpavlin 169 }
212    
213     =head2 site_navigation
214    
215     my $navigation = $strix->site_navigation( $site_id, $uid );
216    
217     =cut
218    
219     sub site_navigation {
220     my $self = shift;
221    
222     my ( $site_id, $uid ) = @_;
223    
224     $uid ||= 1; # anonymous
225     # $uid ||= 2; # admin
226    
227 dpavlin 213 my $cache_format = 'site-%d-navigation-for-uid-%d.js';
228     if ( my $data = $self->read_cache( $cache_format, $site_id, $uid ) ) {
229     return $data;
230     }
231    
232    
233 dpavlin 169 my $sth = $self->dbh->prepare(
234     "SELECT kategorija.*, ((length(prikaz)+length(coalesce(ordstr,'')))/3)-1 as depth FROM kategorija JOIN navigacija ON (kategorija.id = kategorija_id), site WHERE site_id = ? AND site.id = site_id AND userCanDoOnObject(?, 1, 'kats', kategorija.id) ORDER BY prikaz");
235     $sth->execute( $site_id, $uid );
236    
237     Jifty->log->debug("site $site_id has ", $sth->rows, " categories for uid $uid");
238    
239     my $navigation = [];
240    
241     my @pos = ( 0 );
242    
243     while (my $kat = $sth->fetchrow_hashref() ) {
244     warn "# kat = ",dump( $kat ) if $debug;
245 dpavlin 193 if ( ! $kat->{depth} ) {
246     Jifty->log->error("depth increased to 1 in ",dump( $kat ));
247     $kat->{depth} = 1;
248     }
249 dpavlin 169
250     my $node = { type => 'category' };
251     foreach my $c ( qw/naziv url/ ) {
252     $node->{$c} = $kat->{$c};
253     }
254    
255     my $depth = $kat->{depth};
256 dpavlin 182 if ( ! defined $pos[ $depth - 2 ] ) {
257     warn "FIXING CATEGORY: ",dump( $kat );
258     $node->{class} = "error";
259     $depth--;
260     }
261 dpavlin 169 @pos = splice( @pos, 0, $depth );
262     $pos[ $depth - 1 ]++;
263    
264 dpavlin 173 warn "## category depth = $depth pos = ",dump( @pos ) if $debug;
265 dpavlin 169
266     my $code = '$navigation';
267     map { $code .= '->[' . ( $_ - 1 ) . ']->{children}' } @pos;
268     $code =~ s/->{children}$//;
269 dpavlin 173 warn "## category code: $code\n" if $debug;
270 dpavlin 169 eval $code . '= $node';
271     if ( $@ ) {
272     warn "SKIPPED CATEGORY: $@ ",dump( $kat );
273     next;
274     }
275    
276     my $sth_ms = $self->dbh->prepare(
277     "SELECT
278     multistatic.id, multistatic.title, multistatic.kname,
279     multistatic_navigation.kategorija_id, multistatic_navigation.prikaz,
280     (LENGTH(multistatic_navigation.prikaz)/3) AS depth
281     FROM multistatic, multistatic_navigation
282     WHERE multistatic.id = multistatic_navigation.multistatic_id
283     AND multistatic_navigation.prikaz != ''
284     AND multistatic_navigation.kategorija_id = ?
285     AND multistatic.title != ''
286     ORDER BY multistatic_navigation.prikaz");
287     $sth_ms->execute( $kat->{id} );
288    
289     if ( my $rows = $sth_ms->rows ) {
290     Jifty->log->debug("$site_id has $rows multistatic pages");
291    
292     while (my $ms = $sth_ms->fetchrow_hashref() ) {
293     warn "# ms = ",dump( $ms ) if $debug;
294    
295     my $node = {
296     naziv => $ms->{title},
297     url => $kat->{url} . '?ms_nav=' . $ms->{prikaz},
298     type => 'multistatic',
299     };
300    
301     my $ms_depth = $ms->{depth} + $depth;
302     my $p = $pos[ $ms_depth - 1 ]++;
303 dpavlin 173 warn "## multistatic depth = $ms_depth pos = ",dump( @pos ) if $debug;
304 dpavlin 169
305     my $ms_code = $code . '->{children}->[ ' . $p . '] = $node';
306 dpavlin 173 warn "## multistatic code: $ms_code\n" if $debug;
307 dpavlin 169 eval $ms_code;
308     if ( $@ ) {
309     warn "SKIPPED MULTISTATIC: $@ ",dump( $ms );
310     next;
311     }
312     }
313     }
314    
315     }
316    
317 dpavlin 213 $self->write_cache( $navigation, $cache_format, $site_id, $uid );
318    
319 dpavlin 169 return $navigation;
320    
321     }
322    
323 dpavlin 213 =head2 cache_path
324    
325     my $path = $strix->cache_path( 'format-%d', $var, ... );
326    
327     =cut
328    
329     sub cache_path {
330     my $self = shift;
331    
332     warn "# cache_path",dump( @_ );
333    
334     my $path = Jifty::Util->absolute_path( 'var/strix' );
335    
336     if ( ! -e $path ) {
337     mkdir $path || die "can't create $path: $!";
338     }
339    
340     $path .= '/' . sprintf( shift, @_ ); # XXX shift is important here!
341     return $path;
342     }
343    
344     =head2 write_cache
345    
346     write_cache( $data, 'format-%d', $var, ... );
347    
348     =cut
349    
350     sub write_cache {
351     my $self = shift;
352     my $data = shift || confess "no data?";
353     my $path = $self->cache_path( @_ );
354     write_file( $path, encode_json( $data )) || die "can't save into $path: $!";
355     }
356    
357     =head2 read_cache
358    
359     my $data = read_cache( 'format-%d', $var ... );
360    
361     =cut
362    
363     sub read_cache {
364     my $self = shift;
365     my $path = $self->cache_path( @_ );
366     return unless -e $path;
367     warn "# read_cache( $path )";
368     return decode_json( read_file( $path ) ) || die "can't read $path: $!";
369     }
370    
371 dpavlin 167 1;

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