log status of every firm product in every time step + mysql

firm.py

@@ -29,14 +29,14 @@ class FirmAgent(ap.Agent):
         self.flt_crit_supplier = float(self.p.crit_supplier)
 
         # init size_stat (self para)
-        # (size, time step), ts -1 denotes initialization
-        self.size_stat.append((revenue_log, -1))
+        # (size, time step)
+        self.size_stat.append((revenue_log, 0))
 
         # init dct_prod_up_prod_stat (self para)
         for prod in a_lst_product:
             self.dct_prod_up_prod_stat[prod] = {
                 # (Normal / Disrupted / Removed, time step)
-                'status': [('N', -1)],  # ts -1 denotes initialization
+                'status': [('N', 0)],
                 # have or have no supply
                 'supply': dict.fromkeys(prod.a_predecessors(), True)
             }
@@ -294,6 +294,11 @@ class FirmAgent(ap.Agent):
 
     def clean_before_trial(self):
         self.dct_request_prod_from_firm = {}
+        for prod in self.dct_prod_up_prod_stat.keys():
+            status, ts = self.dct_prod_up_prod_stat[prod]['status'][-1]
+            if ts != self.model.t:
+                self.dct_prod_up_prod_stat[prod]['status'].append(
+                    (status, self.model.t))
 
     def clean_before_time_step(self):
         self.dct_n_trial_up_prod_disrupted = \