From d1099104530cd52a5ecda2550d336f5addb4e71c Mon Sep 17 00:00:00 2001
From: Rob Vermaas <rob.vermaas@gmail.com>
Date: Thu, 15 Oct 2009 11:13:36 +0000
Subject: [PATCH]  * paging for releases page

---
 src/lib/Hydra/Controller/Root.pm | 15 +++++-
 src/lib/Hydra/Helper/Nix.pm      | 87 +++++++++++++++++++++++++-------
 src/root/releases.tt             | 10 ++++
 3 files changed, 91 insertions(+), 21 deletions(-)

diff --git a/src/lib/Hydra/Controller/Root.pm b/src/lib/Hydra/Controller/Root.pm
index f29dda90..9c78a29e 100644
--- a/src/lib/Hydra/Controller/Root.pm
+++ b/src/lib/Hydra/Controller/Root.pm
@@ -137,7 +137,13 @@ sub releases :Local {
 
     my ($project, $releaseSet, $primaryJob, $jobs) = getReleaseSet($c, $projectName, $releaseSetName);
 
-    if (defined $subcommand && $subcommand ne "") {
+    my $resultsPerPage = 10;
+    my $page = 1;
+
+    if (defined $subcommand && $subcommand =~ /^\d+$/ ) {
+      $page = int($subcommand) 
+    } 
+    elsif (defined $subcommand && $subcommand ne "") {
 
         requireProjectOwner($c, $project);
 
@@ -166,8 +172,13 @@ sub releases :Local {
     $c->stash->{template} = 'releases.tt';
 
     my @releases = ();
-    push @releases, getRelease($_, $jobs) foreach getPrimaryBuildsForReleaseSet($project, $primaryJob);
+    push @releases, getRelease($_, $jobs) foreach getPrimaryBuildsForReleaseSet($project, $primaryJob, $page, $resultsPerPage);
+
+    $c->stash->{baseUri} = $c->uri_for($self->action_for("releases"), $projectName, $releaseSetName);
     $c->stash->{releases} = [@releases];
+    $c->stash->{page} = $page;
+    $c->stash->{totalReleases} = getPrimaryBuildTotal($project, $primaryJob);
+    $c->stash->{resultsPerPage} = $resultsPerPage;
 }
 
 
diff --git a/src/lib/Hydra/Helper/Nix.pm b/src/lib/Hydra/Helper/Nix.pm
index 1865979b..5872bb0c 100644
--- a/src/lib/Hydra/Helper/Nix.pm
+++ b/src/lib/Hydra/Helper/Nix.pm
@@ -10,7 +10,9 @@ our @EXPORT = qw(
     isValidPath queryPathInfo
     getHydraPath getHydraDBPath openHydraDB txn_do
     registerRoot getGCRootsDir gcRootFor
-    getPrimaryBuildsForReleaseSet getRelease getLatestSuccessfulRelease );
+    getPrimaryBuildsForReleaseSet 
+    getPrimaryBuildTotal
+    getRelease getLatestSuccessfulRelease );
 
 
 sub isValidPath {
@@ -146,19 +148,76 @@ sub attrsToSQL {
     return $query;
 }
 
+sub allPrimaryBuilds {
+  my ($project, $primaryJob) = @_;
+  my $allPrimaryBuilds = $project->builds->search(
+    { jobset => $primaryJob->get_column('jobset'), job => $primaryJob->get_column('job'), finished => 1 },
+    { join => 'resultInfo', order_by => "timestamp DESC"
+    , '+select' => ["resultInfo.releasename", "resultInfo.buildstatus"]
+    , '+as' => ["releasename", "buildstatus"]
+    , where => \ attrsToSQL($primaryJob->attrs, "me.id")
+    });
+  return $allPrimaryBuilds; 
+}
+
+sub getPrimaryBuildTotal {
+    my ($project, $primaryJob) = @_;
+    return scalar(allPrimaryBuilds($project, $primaryJob)) ;
+}
 
 sub getPrimaryBuildsForReleaseSet {
-    my ($project, $primaryJob) = @_;
-    my @primaryBuilds = $project->builds->search(
-        { jobset => $primaryJob->get_column('jobset'), job => $primaryJob->get_column('job'), finished => 1 },
-        { join => 'resultInfo', order_by => "timestamp DESC"
-        , '+select' => ["resultInfo.releasename", "resultInfo.buildstatus"]
-        , '+as' => ["releasename", "buildstatus"]
-        , where => \ attrsToSQL($primaryJob->attrs, "me.id")
+    my ($project, $primaryJob, $page, $resultsPerPage) = @_;
+    $page = (defined $page ? int($page) : 1) || 1;
+    $resultsPerPage = (defined $resultsPerPage ? int($resultsPerPage) : 20) || 20;
+
+    my @primaryBuilds = allPrimaryBuilds($project, $primaryJob)->search( {},
+        { rows => $resultsPerPage
+        , page => $page
         });
+
     return @primaryBuilds;
 }
 
+sub findLastJobForBuilds {
+    my ($builds, $job) = @_;
+    my $thisBuild;
+
+    # Find a build of this job that had the primary build
+    # as input.  If there are multiple, prefer successful
+    # ones, and then oldest.  !!! order_by buildstatus is hacky
+    ($thisBuild) = $builds->search(
+             { project => $job->get_column('project'), jobset => $job->get_column('jobset')
+             , job => $job->get_column('job'), finished => 1 
+             }
+           , { join => 'resultInfo', rows => 1
+             , order_by => ["buildstatus", "timestamp"]
+             , where => \ attrsToSQL($job->attrs, "build.id")
+             , '+select' => ["resultInfo.buildstatus"], '+as' => ["buildstatus"]
+             });
+  return $thisBuild ;
+    
+}
+
+sub findLastJobForPrimaryBuild {
+    my ($primaryBuild, $job) = @_;
+    my $thisBuild;
+    my $depBuilds;
+    $depBuilds = $primaryBuild->dependentBuilds;
+    $thisBuild = findLastJobForBuilds($depBuilds, $job) ;
+
+# don't do recursive yet
+#    if (!defined $thisBuild) {
+#        
+#        foreach my $build ($depBuilds->all) {
+#            $thisBuild = findLastJobForPrimaryBuild($build, $job) ;
+#            if (defined $thisBuild) {
+#                last ;
+#            }
+#        }
+#    } 
+
+    return $thisBuild;
+}
 
 sub getRelease {
     my ($primaryBuild, $jobs) = @_;
@@ -177,17 +236,7 @@ sub getRelease {
         if ($job->isprimary) {
             $thisBuild = $primaryBuild;
         } else {
-            # Find a build of this job that had the primary build
-            # as input.  If there are multiple, prefer successful
-            # ones, and then oldest.  !!! order_by buildstatus is hacky
-            ($thisBuild) = $primaryBuild->dependentBuilds->search(
-                { project => $job->get_column('project'), jobset => $job->get_column('jobset')
-                , job => $job->get_column('job'), finished => 1 },
-                { join => 'resultInfo', rows => 1
-                , order_by => ["buildstatus", "timestamp"]
-                , where => \ attrsToSQL($job->attrs, "build.id")
-                , '+select' => ["resultInfo.buildstatus"], '+as' => ["buildstatus"]
-                });
+            $thisBuild = findLastJobForPrimaryBuild($primaryBuild, $job) ;
         }
 
         if ($job->mayfail != 1) {
diff --git a/src/root/releases.tt b/src/root/releases.tt
index a0e266a0..e4407d85 100644
--- a/src/root/releases.tt
+++ b/src/root/releases.tt
@@ -9,6 +9,8 @@
 [<a href="[% c.uri_for('/release' project.name releaseSet.name "latest") %]">Latest</a>]
 </p>
 
+<p>Showing releases [% (page - 1) * resultsPerPage + 1 %] - [% (page - 1) * resultsPerPage + releases.size %] out of [% totalReleases %].</p>
+
 <table class="tablesorter">
   <thead>
     <tr>
@@ -62,4 +64,12 @@
   </tbody>
 </table>
 
+[% IF page > 1 %]
+  [<a href="[% "$baseUri/"; (page - 1) %]">Prev</a>]
+[% END %]
+[% IF page * resultsPerPage < totalReleases %]
+  [<a href="[% "$baseUri/"; (page + 1) %]">Next</a>]
+[% END %]
+[<a href="[% "$baseUri/"; (totalReleases - 1) div resultsPerPage + 1 %]">Last</a>]
+
 [% END %]