diff.patch

diff -r bbee7515875a html/issue.index.html
--- a/html/issue.index.html	Thu Sep 28 03:56:57 2017 +0300
+++ b/html/issue.index.html	Fri Dec 21 17:26:56 2018 +0100
@@ -31,6 +31,7 @@
    <th tal:condition="request/show/title" i18n:translate="">Title</th>
    <th tal:condition="request/show/components"  i18n:translate="">Components</th>
    <th tal:condition="request/show/versions" i18n:translate="">Versions</th>
+   <th tal:condition="request/show/milestone" i18n:translate="">Milestone</th>
    <th tal:condition="request/show/status"    i18n:translate="">Status</th>
    <th tal:condition="request/show/resolution" i18n:translate="">Resolution</th>
    <th tal:condition="request/show/creator" i18n:translate="">Creator</th>
@@ -67,6 +68,8 @@
        tal:content="python:i.components.plain() or default">&nbsp;</td>
    <td tal:condition="request/show/versions"
        tal:content="python:i.versions.plain() or default">&nbsp;</td>
+   <td tal:condition="request/show/milestone"
+       tal:content="python:i.milestone.plain() or default">&nbsp;</td>
    <td tal:condition="request/show/status"
        tal:content="python:i.status.plain() or default">&nbsp;</td>
    <td tal:condition="request/show/resolution"
diff -r bbee7515875a html/issue.item.html
--- a/html/issue.item.html	Thu Sep 28 03:56:57 2017 +0300
+++ b/html/issue.item.html	Fri Dec 21 17:26:56 2018 +0100
@@ -78,6 +78,17 @@
  </th>
  <td tal:content="structure context/versions/menu">versions</td>
 </tr>
+
+<tr>
+ <th>
+ </th>
+ <td></td>
+ <th i18n:translate="">
+   <span tal:replace="structure python:db.milestone.classhelp('id,name,description',label='Milestone')" />:
+ </th>
+ <td tal:content="structure context/milestone/menu">milestone</td>
+</tr>
+
 </table>
 </fieldset>
 
diff -r bbee7515875a html/issue.search.html
--- a/html/issue.search.html	Thu Sep 28 03:56:57 2017 +0300
+++ b/html/issue.search.html	Fri Dec 21 17:26:56 2018 +0100
@@ -148,6 +148,19 @@
   <td metal:use-macro="group_input"></td>
 </tr>
 
+<tr tal:define="name string:milestone;
+                db_klass string:milestone;
+                db_content string:name;">
+  <th i18n:translate="">Milestone:</th>
+  <td metal:use-macro="search_select_translated">
+    <option metal:fill-slot="extra_options" value="-1" i18n:translate=""
+            tal:attributes="selected python:value == '-1'">not selected</option>
+  </td>
+  <td metal:use-macro="column_input"></td>
+  <td metal:use-macro="sort_input"></td>
+  <td metal:use-macro="group_input"></td>
+</tr>
+
 <tr tal:define="name string:severity;
                 db_klass string:severity;
                 db_content string:name;">
diff -r bbee7515875a schema.py
--- a/schema.py	Thu Sep 28 03:56:57 2017 +0300
+++ b/schema.py	Fri Dec 21 17:26:56 2018 +0100
@@ -30,6 +30,13 @@
                 order=Number())
 version.setkey('name')
 
+# Milestone
+milestone = Class(db, 'milestone',
+                name=String(),
+                description=String(),
+                order=Number())
+version.setkey('name')
+
 # Severity
 severity = Class(db, 'severity',
                  name=String(),
@@ -126,7 +133,9 @@
                    status=Link('status'),
                    resolution=Link('resolution'),
                    superseder=Link('issue'),
-                   keywords=Multilink("keyword"))
+                   keywords=Multilink("keyword"),
+                   milestone=Link('milestone'),
+                   )
 
 #
 # TRACKER SECURITY SETTINGS
@@ -154,7 +163,7 @@
 
 for cl in ('issue_type', 'severity', 'component',
            'version', 'priority', 'status', 'resolution',
-           'issue', 'keyword'):
+           'issue', 'keyword', 'milestone'):
     db.security.addPermissionToRole('User', 'View', cl)
     db.security.addPermissionToRole('Anonymous', 'View', cl)
 
@@ -219,7 +228,7 @@
 p = db.security.addPermission(name='Create', klass='issue',
                               properties=('title', 'type',
                                           'components', 'versions',
-                                          'severity',
+                                          'severity', 'milestone',
                                           'messages', 'files', 'nosy'),
                               description='User can report and discuss issues')
 db.security.addPermissionToRole('User', p)
@@ -227,7 +236,7 @@
 p = db.security.addPermission(name='Edit', klass='issue',
                               properties=('title', 'type',
                                           'components', 'versions',
-                                          'severity',
+                                          'severity', 'milestone',
                                           'messages', 'files', 'nosy'),
                               description='User can report and discuss issues')
 db.security.addPermissionToRole('User', p)
@@ -241,7 +250,7 @@
 ##########################
 for cl in ('issue_type', 'severity', 'component',
            'version', 'priority', 'status', 'resolution',
-           'issue', 'file', 'msg', 'keyword'):
+           'issue', 'file', 'msg', 'keyword', 'milestone'):
     db.security.addPermissionToRole('Developer', 'View', cl)
 
 for cl in ('issue', 'file', 'msg', 'keyword'):
@@ -252,7 +261,7 @@
 ##########################
 # Coordinator permissions
 ##########################
-for cl in ('issue_type', 'severity', 'component',
+for cl in ('issue_type', 'severity', 'component', 'milestone',
            'version', 'priority', 'status', 'resolution', 'issue', 'file', 'msg'):
     db.security.addPermissionToRole('Coordinator', 'View', cl)
     db.security.addPermissionToRole('Coordinator', 'Edit', cl)