Pagination functionality

- Added pagination to the project report for now

Fixes #57

autology/reports/project/project.py

@@ -6,6 +6,7 @@
 from autology.publishing import publish
 from autology.reports.models import Report
 from autology.utilities.log_file import MetaKeys
+from autology.utilities.pagination import pagination
 
 try:
     from yaml import CLoader as Loader
@@ -52,11 +53,24 @@ def _build_report():
             orphaned_projects.append(project)
 
         # Sort the logs that are stored on the project
-        project['log'] = sorted(project.get('log', []), key=lambda x: x.metadata['time'])
+        project['log'] = sorted(project.get('log', []), key=lambda x: x.metadata['time'], reverse=True)
 
-        # Now generate a report for each of the projects.
-        url = publish('project', 'project', project=project)
-        project['url'] = url
+        print('Publishing: {} length: {}'.format(project['id'], len(project['log'])))
+
+        pagination_data = pagination(project['log'])
+
+        # Publish the first page
+        print('Publishing: {} pagination data: {} length: {}'.format(project['id'], len(pagination_data), len(project['log'])))
+
+        if pagination_data:
+            publish('project', 'project', project=project, pagination=pagination_data[0])
+
+            # Publish the rest of the data
+            for page_data in pagination_data[1:]:
+                # Now generate a report for each of the projects.
+                print('publishing page: {} {}'.format(project['id'], page_data['page_number']))
+                publish('project', 'project_pagination', project=project, pagination=page_data,
+                        page_number=page_data['page_number'])
 
     main_context = {
         'projects': _defined_projects.values(),
@@ -67,8 +81,9 @@ def _build_report():
     if orphaned_projects:
         main_context['orphaned_projects'] = orphaned_projects
 
-    url = publish('project', 'index', **main_context)
-    topics.Reporting.REGISTER_REPORT.publish(report=Report('Project', 'List of all project files', ['project', 'index'], {}))
+    publish('project', 'index', **main_context)
+    topics.Reporting.REGISTER_REPORT.publish(report=Report('Project', 'List of all project files', ['project', 'index'],
+                                                           {}))
 
 
 def process_file(entry):

autology/utilities/pagination.py

@@ -1,7 +1,29 @@
+"""Module that provides pagination and supporting functionality."""
+
+
 def pagination(entries, num_entries=15, ):
     """
     :param entries: List of all of the entries that need to be paginated (if necessary)
     :param num_entries: number of entries that should be provided per page
     :return: list of dictionaries that should be passed to the publisher with the appropriate prev and next values
     set for the URLs
-    """
+    """
+
+    # Split the entries into chunks of num_entries size
+    chunks = [entries[x:x+num_entries] for x in range(0, len(entries), num_entries)]
+
+    # Populate the rest of the data set with values for finding the next pages
+    return_value = []
+    for page_number, page in enumerate(chunks, start=1):
+        page_data = {'entries': page,
+                     'page_number': page_number}
+
+        if page_number != 1:
+            page_data['prev_page_number'] = page_number - 1
+
+        if page_number != len(chunks):
+            page_data['next_page_number'] = page_number + 1
+
+        return_value.append(page_data)
+
+    return return_value