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#!/usr/bin/perl
#
# Problems.pm:
# Various problem report database fetching related functions for FixMyStreet.
#
# Copyright (c) 2008 UK Citizens Online Democracy. All rights reserved.
# Email: matthew@mysociety.org; WWW: http://www.mysociety.org/
#
# $Id: Problems.pm,v 1.6 2008-09-17 21:40:44 matthew Exp $
#
package Problems;
use strict;
use Memcached;
use mySociety::DBHandle qw/dbh select_all/;
use mySociety::Web qw/ent/;
my $site_restriction = '';
my $site_key = 0;
sub set_site_restriction {
my $site = shift;
my @cats = Page::scambs_categories();
my $cats = join("','", @cats);
$site_restriction = " and council=2260 and category in
('$cats') "
if $site eq 'scambs';
$site_key = 1;
}
# Front page statistics
sub recent_fixed {
my $key = "recent_fixed:$site_key";
my $result = Memcached::get($key);
unless ($result) {
$result = dbh()->selectrow_array("select count(*) from problem
where state='fixed' and lastupdate>ms_current_timestamp()-'1 month'::interval
$site_restriction");
Memcached::set($key, $result, 3600);
}
return $result;
}
sub number_comments {
my $key = "number_comments:$site_key";
my $result = Memcached::get($key);
unless ($result) {
if ($site_restriction) {
$result = dbh()->selectrow_array("select count(*) from comment, problem
where comment.problem_id=problem.id and comment.state='confirmed'
$site_restriction");
} else {
$result = dbh()->selectrow_array("select count(*) from comment
where state='confirmed'");
}
Memcached::set($key, $result, 3600);
}
return $result;
}
sub recent_new {
my $interval = shift;
(my $key = $interval) =~ s/\s+//g;
$key = "recent_new:$site_key:$key";
my $result = Memcached::get($key);
unless ($result) {
$result = dbh()->selectrow_array("select count(*) from problem
where state in ('confirmed','fixed') and confirmed>ms_current_timestamp()-'$interval'::interval
$site_restriction");
Memcached::set($key, $result, 3600);
}
return $result;
}
# Front page recent lists
sub recent_photos {
my ($num, $e, $n, $dist) = @_;
my $probs;
if ($e) {
my $key = "recent_photos:$site_key:$num:$e:$n:$dist";
$probs = Memcached::get($key);
unless ($probs) {
$probs = select_all("select id, title
from problem_find_nearby(?, ?, ?) as nearby, problem
where nearby.problem_id = problem.id
and state in ('confirmed', 'fixed') and photo is not null
$site_restriction
order by confirmed desc limit $num", $e, $n, $dist);
Memcached::set($key, $probs, 3600);
}
} else {
my $key = "recent_photos:$site_key:$num";
$probs = Memcached::get($key);
unless ($probs) {
$probs = select_all("select id, title from problem
where state in ('confirmed', 'fixed') and photo is not null
$site_restriction
order by confirmed desc limit $num");
Memcached::set($key, $probs, 3600);
}
}
my $out = '';
foreach (@$probs) {
my $title = ent($_->{title});
$out .= '<a href="/?id=' . $_->{id} .
'"><img border="0" src="/photo?tn=1;id=' . $_->{id} .
'" alt="' . $title . '" title="' . $title . '"></a>';
}
return $out;
}
sub recent {
my $key = "recent:$site_key";
my $result = Memcached::get($key);
unless ($result) {
$result = select_all("select id,title from problem
where state in ('confirmed', 'fixed')
$site_restriction
order by confirmed desc limit 5");
Memcached::set($key, $result, 3600);
}
return $result;
}
# Problems around a location
sub around_map {
my ($min_e, $max_e, $min_n, $max_n) = @_;
select_all(
"select id,title,easting,northing,state from problem
where state in ('confirmed', 'fixed')
and easting>=? and easting<? and northing>=? and northing<?
$site_restriction
order by created desc", $min_e, $max_e, $min_n, $max_n);
}
sub nearby {
my ($dist, $ids, $limit, $mid_e, $mid_n) = @_;
select_all(
"select id, title, easting, northing, distance, state
from problem_find_nearby(?, ?, $dist) as nearby, problem
where nearby.problem_id = problem.id
and state in ('confirmed', 'fixed')" . ($ids ? ' and id not in (' . $ids . ')' : '') . "
$site_restriction
order by distance, created desc limit $limit", $mid_e, $mid_n);
}
sub fixed_nearby {
my ($dist, $mid_e, $mid_n) = @_;
select_all(
"select id, title, easting, northing, distance
from problem_find_nearby(?, ?, $dist) as nearby, problem
where nearby.problem_id = problem.id and state='fixed'
$site_restriction
order by lastupdate desc", $mid_e, $mid_n);
}
# Fetch an individual problem
sub fetch_problem {
my $id = shift;
dbh()->selectrow_hashref(
"select id, easting, northing, council, category, title, detail, (photo is not null) as photo,
used_map, name, anonymous, extract(epoch from confirmed) as time,
state, extract(epoch from whensent-confirmed) as whensent,
extract(epoch from ms_current_timestamp()-lastupdate) as duration
from problem where id=? and state in ('confirmed','fixed', 'hidden')
$site_restriction", {}, $id
);
}
1;
|
