Tag feature implementation

[akanevsky]

I implemented a tag feature. This resolves #23. Please see the tags.md file in my branch for a full description.

Here are some screenshots...

Project activity feed with tags:

Issue list with filter and tags:

Issue with tags:

Tag administration homepage:

Edit tag screen:

Edit tag screen with color picker:

Hope you enjoy, and send some feedback.

[baurez]

Hi,
I installed on my version and everything seams OK

Very good feature :)

[brunocascio]

Hi !

I found an error where search with multiple tags.

I see this query:

SELECT `projects_issues`.* FROM `projects_issues` 

LEFT JOIN `projects_issues_tags` 
    ON `projects_issues_tags`.`issue_id` = `projects_issues`.`id` 

LEFT JOIN `tags` 
    ON (`tags`.`id`  = `projects_issues_tags`.`tag_id`) 

WHERE `project_id` = '4' 
AND `tags`.`tag` = 'resolution:fixed'
AND `tags`.`tag` = 'status:open'

GROUP BY `projects_issues`.`id` 

ORDER BY `projects_issues`.`updated_at` DESC;

SQL not allowed multiples "where" filters for an clause join:

WHERE `project_id` = '4' 
AND `tags`.`tag` = 'resolution:fixed'
AND `tags`.`tag` = 'status:open'

And, why use "LEFT JOIN" and not "INNER JOIN" ?

"LEFT JOIN" not only return to the issues associated tags, but also those that are not associated with any.

[pixeline]

Hello,
@brunocascio you are right. The correct query should be

SELECT `projects_issues`.* FROM `projects_issues` 

 JOIN `projects_issues_tags` 
    ON `projects_issues_tags`.`issue_id` = `projects_issues`.`id` 

 JOIN `tags` 
    ON (`tags`.`id`  = `projects_issues_tags`.`tag_id`) 

WHERE `project_id` = '1' 
AND `tags`.`tag` IN('tagname1','tagname2')

GROUP BY `projects_issues`.`id` 
HAVING COUNT(DISTINCT `tags`.`tag`) = 2

ORDER BY `projects_issues`.`updated_at` DESC

I'm new to Laravel, but i'll try to submit a patch.

[pixeline]

Ok, i've found a workaround:

in app/application/controllers/project.php

From Line 77:

if ($tags || $sort_by != 'updated')
        {
            $issues = $issues
                ->join('projects_issues_tags', 'projects_issues_tags.issue_id', '=', 'projects_issues.id')
                ->join('tags', 'tags.id', '=', 'projects_issues_tags.tag_id');
        }

        $issues = $issues->where('project_id', '=', Project::current()->id);

        if ($assigned_to)
        {
            $issues = $issues->where('assigned_to', '=', $assigned_to);
        }

        if ($tags)
        {
            $tags_collection = explode(',', $tags);
            $tags_amount = count($tags_collection);
/*
            foreach (explode(',', $tags) as $tag)
            {
                if (substr($tag, -2) == ':*')
                {
                    $tags_collection[] = substr($tag, 0, strlen($tag) - 2) . ':%';
                    //$issues = $issues->where('tags.tag', 'LIKE', $tag);
                }
                else
                {
                    $tags_collection[] =$tag;
                    //$issues = $issues->where('tags.tag', '=', $tag);
                }
            }
*/

            $issues = $issues->where_in('tags.tag', $tags_collection);//->get();
        }

        $issues = $issues
            ->group_by('projects_issues.id')
            ->order_by($sort_by_clause, $sort_order);

        if($tags && $tags_amount>1){
            // L3
            $issues = $issues->having(DB::raw('COUNT(DISTINCT `tags`.`tag`)'),'=',$tags_amount);
            // L4 $issues = $issues->havingRaw("COUNT(DISTINCT `tags`.`tag`) = ".$tags_amount);
        }

        $issues = $issues->get(array('projects_issues.*'));