Update the metric selector to add the author criteria.

controllers/metrics.py

@@ -15,13 +15,13 @@ def index():
     """Main Controller handling metrics.
 
     """
+    publications = db.publications
+
     # get the user constraint.
     # the selector fields year_start, year_end, id_lists are excluded
     # from the selector query.
-    selector = Selector(virtdb.metric_selector,
-                        exclude_fields=('year_start',
-                                        'year_end',
-                                        'id_metrics'))
+    tpl = ('author', 'year_start', 'year_end', 'id_metrics')
+    selector = Selector(virtdb.metric_selector, exclude_fields=tpl)
 
     # protection
     if not selector.id_metrics:
@@ -46,19 +46,23 @@ def index():
     # query directive to count publications including
     # foreign key constraints and user requirements
     # related to team, project and year
-    query = selector.query(db.publications)
+    query = selector.query(publications)
 
     if metric.conditions:
-        q_conditions = smart_query(db.publications, metric.conditions)
-        query = (query) & (q_conditions)
+        q_conditions = smart_query(publications, metric.conditions)
+        query &= q_conditions
 
     if selector.year_start and not selector.year_end:
-        query = (query) & (db.publications.year == selector.year_start)
+        query &= (publications.year == selector.year_start)
 
     elif selector.year_start and selector.year_end:
-        q_start = db.publications.year >= selector.year_start
-        q_end =  db.publications.year <= selector.year_end
-        query = (query) & ((q_start) & (q_end))
+        q_start = publications.year >= selector.year_start
+        q_end =  publications.year <= selector.year_end
+        query &= ((q_start) & (q_end))
+
+    if selector.author:
+        q_author = publications.authors_institute.contains(selector.author)
+        query &= q_author
 
     # get the label along the x and y axis
     labels = {}
@@ -89,7 +93,7 @@ def index():
     # fill the data block of the Ext.data.Array.Store
     # transform (x, y count) data point into a row of values
     # sum the content of the row
-    count = db.publications.id.count()
+    count = publications.id.count()
     rows =  db(query).select(fields['vertical'],
                              fields['horizontal'],
                              count,

models/vt_metric_selector.py

@@ -13,6 +13,7 @@ virtdb.define_table('metric_selector',
     Field('id_teams', 'reference teams', label='Team'),
     Field('id_projects', 'reference projects', label='Project'),
     Field('id_categories', 'reference categories', label='Category'),
+    Field('author', 'string'),
     Field('id_authors_roles', 'reference authors_roles', label='Role'),
     Field('id_metrics', 'reference metrics', label='Metric'))