From 5168202fe4bab75878f006ee4ab0285fbf566d78 Mon Sep 17 00:00:00 2001
From: Vincent Le Gallic <legallic@crans.org>
Date: Sun, 15 Feb 2015 17:27:50 +0100
Subject: [PATCH] [depenses] Argparse

---
 bde/stats/depenses.py | 40 ++++++++++++++++++++++++++++------------
 1 file changed, 28 insertions(+), 12 deletions(-)

diff --git a/bde/stats/depenses.py b/bde/stats/depenses.py
index b0ca825..9246e17 100755
--- a/bde/stats/depenses.py
+++ b/bde/stats/depenses.py
@@ -7,26 +7,32 @@ import psycopg2
 import psycopg2.extras
 
 import sys
+import argparse
 
 create_temp_table = """
  SELECT extract(year FROM date) AS annee,
+       %(select_month)s
        CAST(sum(
-                CASE WHEN emetteur = %(idbde)s THEN montant * quantite
+                CASE WHEN emetteur = %%(idbde)s THEN montant * quantite
                      ELSE 0
                 END
                )/100.0 AS numeric(10,2)) AS depenses,
        CAST(sum(
-                CASE WHEN destinataire = %(idbde)s THEN montant * quantite
+                CASE WHEN destinataire = %%(idbde)s THEN montant * quantite
                      ELSE 0
                 END
                )/100.0 AS numeric(10,2)) AS gains
  INTO past
  FROM transactions
- WHERE valide AND %(idbde)s in (emetteur, destinataire)
- GROUP BY annee
+ WHERE valide AND %%(idbde)s in (emetteur, destinataire)
+ GROUP BY annee%(groupby_month)s
  ;
 """
 
+select_month = """extract(month FROM date) AS mois,"""
+
+groupby_month = """, month"""
+
 display_all = """ SELECT * FROM past
  ORDER BY annee
  ;
@@ -44,26 +50,36 @@ def get_cursor():
     cur = con.cursor(cursor_factory = psycopg2.extras.DictCursor)
     return (con, cur)
 
-def get_depenses(idbde):
+def get_depenses(idbde, bymonth=False):
     """Récupère toutes les dépenses/gains du compte ``idbde``"""
     con, cur = get_cursor()
-    cur.execute(create_temp_table, {"idbde" : idbde})
+    modifiers = {"select_month" : "", "groupby_month" : ""}
+    params = {"idbde" : idbde}
+    if bymonth:
+        params["select_month"] = select_month
+        params["groupby_month"] = groupby_month
+    cur.execute(create_temp_table % modifiers, params)
     cur.execute(display_all)
     all = cur.fetchall()
     cur.execute(display_sum)
     tot = cur.fetchall()[0]
     return (all, tot)
 
-def display_depenses(all, tot):
+def display_depenses(idbde, all, tot):
     """Pretty-printing des résultats."""
-    print "annee\tdepenses\tgains"
+    print "Compte %s:\nannee\tdepenses\tgains" % (idbde,)
     for li in all:
         li = [int(li[0]), li[1], li[2]]
         print "%s\t%s\t\t%s" % tuple(li)
     print "\nTotal :\n\tdepenses\tgains"
-    print "\t%s\t\t%s" % tuple(tot)
+    print "\t%s\t\t%s\n" % tuple(tot)
 
 if __name__ == "__main__":
-    idbde = int(sys.argv[1])
-    all, tot = get_depenses(idbde)
-    display_depenses(all, tot)
+    parser = argparse.ArgumentParser(description=__doc__)
+    parser.add_argument("-m", "--months", help="Faire le calcul par mois", action="store_true")
+    parser.add_argument('idbdes', type=int, nargs=argparse.ONE_OR_MORE, help="Les idbde dont on veut connaître les dépenses.")
+    
+    args = parser.parse_args()
+    for idbde in args.idbdes:
+        all, tot = get_depenses(idbde)
+        display_depenses(idbde, all, tot)
-- 
2.39.2