Add from_date and until_date parameters to uruguay_base

Signed-off-by: Yohanna Lisnichuk <yohanitalisnichuk@gmail.com>

kingfisher_scrapy/base_spider.py

@@ -42,7 +42,7 @@ class BaseSpider(scrapy.Spider):
 
     MAX_SAMPLE = 10
     MAX_RELEASES_PER_PACKAGE = 100
-    VALID_DATE_FORMATS = {'date': '%Y-%m-%d', 'datetime': '%Y-%m-%dT%H:%M:%S'}
+    VALID_DATE_FORMATS = {'date': '%Y-%m-%d', 'datetime': '%Y-%m-%dT%H:%M:%S', 'month-year': '%m-%Y'}
 
     def __init__(self, sample=None, note=None, from_date=None, until_date=None,
                  date_format='date', *args, **kwargs):

kingfisher_scrapy/spiders/uruguay_base.py

@@ -1,17 +1,21 @@
-from datetime import date
+from datetime import date, datetime
 
 from kingfisher_scrapy.base_spider import SimpleSpider
 from kingfisher_scrapy.util import components, date_range_by_month
 
 
 class UruguayBase(SimpleSpider):
     download_delay = 0.9
+    default_from_date = '11-2017'
+
+    @classmethod
+    def from_crawler(cls, crawler, *args, **kwargs):
+        return super(UruguayBase, cls).from_crawler(crawler, date_format='month-year', *args, **kwargs)
 
     def start_requests(self):
         url = 'http://comprasestatales.gub.uy/ocds/rss/{0.year:d}/{0.month:02d}'
-
-        start = date(2017, 11, 1)
-        stop = date.today().replace(day=1)
+        start = self.from_date if self.from_date else datetime.strptime(self.default_from_date, self.date_format)
+        stop = self.until_date if self.until_date else date.today().replace(day=1)
         if self.sample:
             start = stop