2 # -*- coding: iso-8859-15 -*-
5 """Contains functions that maintain/update the cache tables."""
6 from sqlalchemy import schema
7 from sqlalchemy.sql import select
9 from wrpylib import mwdb, wrmwdb, mwmarkup, wrmwmarkup
12 class UpdateCacheError(RuntimeError):
16 def update_wrsledruncache(connection):
17 """Updates the wrsledruncache table from the wiki. If convert errors occur, an UpdateCacheError exception
18 is raised. No other exception type should be raised under normal circumstances.
20 >>> from sqlalchemy.engine import create_engine
21 >>> engine = create_engine('mysql://philipp@localhost:3306/philipp_winterrodeln_wiki?charset=utf8&use_unicode=0')
22 >>> update_wrsledruncache(engine.connect())
24 metadata = schema.MetaData()
25 wrsledruncache = wrmwdb.wrsledruncache_table(metadata)
26 page = mwdb.page_table(metadata)
27 categorylinks = mwdb.categorylinks_table(metadata)
28 revision = mwdb.revision_table(metadata)
29 text = mwdb.text_table(metadata)
31 transaction = connection.begin()
34 q = select([page, categorylinks, revision, text], (page.c.page_latest==revision.c.rev_id) & (text.c.old_id==revision.c.rev_text_id) & (categorylinks.c.cl_from==page.c.page_id) & (categorylinks.c.cl_to==u'Rodelbahn'))
35 sledrun_pages = connection.execute(q)
37 # sql = u"select page_id, rev_id, old_id, page_title, old_text, 'In_Arbeit' in (select cl_to from categorylinks where cl_from=page_id) as under_construction from page, revision, text, categorylinks where page_latest=rev_id and old_id=rev_text_id and cl_from=page_id and cl_to='Rodelbahn' order by page_title"
39 # Delete all existing entries in wrsledruncache
40 # We rely on transactions MySQL InnoDB
41 connection.execute(wrsledruncache.delete())
43 # Refill wrsledruncache table
44 for sledrun_page in sledrun_pages:
46 start, end, sledrun = wrmwmarkup.rodelbahnbox_to_sledrun(sledrun_page.old_text)
47 sledrun.page_id = sledrun_page.page_id
48 sledrun.page_title = sledrun_page.page_title
49 sledrun.under_construction = connection.execute(select([categorylinks], (categorylinks.c.cl_from==sledrun_page.page_id) & (categorylinks.c.cl_to == u'In_Arbeit')).alias('x').count()).fetchone()[0] > 0 # It would be better to do this in the query above
50 connection.execute(wrsledruncache.insert(sledrun.__dict__))
51 except (RuntimeError, formencode.Invalid) as e:
52 transaction.rollback()
53 error_msg = u"Error at sled run '{0}': {1}".format(sledrun_page.page_title, unicode(e))
54 raise UpdateCacheError(error_msg, sledrun_page.page_title, e)
58 def update_wrinncache(connection):
59 """Updates the wrinncache table from the wiki. If convert errors occur, an UpdateCacheError exception
60 is raised. No other exception type should be raised under normal circumstances.
62 >>> from sqlalchemy.engine import create_engine
63 >>> engine = create_engine('mysql://philipp@localhost:3306/philipp_winterrodeln_wiki?charset=utf8&use_unicode=0')
64 >>> update_wrinncache(engine.connect())
66 metadata = schema.MetaData()
67 wrinncache = wrmwdb.wrinncache_table(metadata)
68 page = mwdb.page_table(metadata)
69 categorylinks = mwdb.categorylinks_table(metadata)
70 revision = mwdb.revision_table(metadata)
71 text = mwdb.text_table(metadata)
73 transaction = connection.begin()
76 q = select([page, categorylinks, revision, text], (page.c.page_latest==revision.c.rev_id) & (text.c.old_id==revision.c.rev_text_id) & (categorylinks.c.cl_from==page.c.page_id) & (categorylinks.c.cl_to==u'Gasthaus'))
77 inn_pages = connection.execute(q)
79 # Delete all existing entries in wrinncache
80 # We rely on transactions MySQL InnoDB
81 connection.execute(wrinncache.delete())
83 # Refill wrinncache table
84 for inn_page in inn_pages:
86 start, end, inn = wrmwmarkup.gasthausbox_to_inn(inn_page.old_text)
87 inn.page_id = inn_page.page_id
88 inn.page_title = inn_page.page_title
89 inn.under_construction = connection.execute(select([categorylinks], (categorylinks.c.cl_from==inn_page.page_id) & (categorylinks.c.cl_to == u'In_Arbeit')).alias('x').count()).fetchone()[0] > 0 # It would be better to do this in the query above
90 connection.execute(wrinncache.insert(inn.__dict__))
91 except (RuntimeError, formencode.Invalid) as e:
92 transaction.rollback()
93 error_msg = u"Error as inn '{0}': {1}".format(inn_page.page_title, unicode(e))
94 raise UpdateCacheError(error_msg, inn_page.page_title, e)
98 def update_wrreportcache(connection, page_id=None):
99 """Updates the wrreportcache table.
100 :param connection: sqlalchemy connection
101 :param page_id: Updates only the reportcache table for the sledrun described on the Winterrodeln wiki page
102 with the specified page_id. Use None for this parameter to update the whole table.
104 >>> from sqlalchemy.engine import create_engine
105 >>> engine = create_engine('mysql://philipp@localhost:3306/philipp_winterrodeln_wiki?charset=utf8&use_unicode=1')
106 >>> update_wrreportcache(engine.connect())
108 metadata = schema.MetaData()
109 wrreport = wrmwdb.wrreport_table(metadata)
110 wrreportcache = wrmwdb.wrreportcache_table(metadata)
111 transaction = connection.begin()
113 # Delete the datasets we are going to update
114 sql_del = wrreportcache.delete()
115 if not page_id is None: sql_del = sql_del.where(wrreportcache.c.page_id == page_id)
116 connection.execute(sql_del)
118 def insert_row(connection, rowlist):
119 if len(rowlist) == 0: return
121 row = dict(rowlist[0])
122 connection.execute(wrreportcache.insert(values=row))
124 # Select the rows to update
125 sql = 'select page_id, page_title, wrreport.id as report_id, date_report, `condition`, description, author_name, if(author_userid is null, null, author_username) as author_username from wrreport where {0}`condition` is not null and date_invalid > now() and delete_date is null order by page_id, date_report desc, date_entry desc'.format('' if page_id is None else 'page_id={0} and '.format(page_id))
126 cursor = connection.execute(sql)
130 if row.page_id != page_id:
131 insert_row(connection, rowlist)
132 page_id = row.page_id
135 insert_row(connection, rowlist)
139 def update_wrmapcache(connection):
140 """Updates the wrmappointcache and wrmappathcache tables from the wiki. If convert errors occur, an UpdateCacheError exception
141 is raised. No other exception type should be raised under normal circumstances.
143 >>> from sqlalchemy.engine import create_engine
144 >>> engine = create_engine('mysql://philipp@localhost:3306/philipp_winterrodeln_wiki?charset=utf8&use_unicode=0')
145 >>> # or: engine = create_engine('mysql://philipp@localhost:3306/philipp_winterrodeln_wiki?charset=utf8&use_unicode=0&passwd=XXXXX')
146 >>> connection = engine.connect()
147 >>> update_wrmapcache(connection)
149 metadata = schema.MetaData()
150 page = mwdb.page_table(metadata)
151 categorylinks = mwdb.categorylinks_table(metadata)
152 revision = mwdb.revision_table(metadata)
153 text = mwdb.text_table(metadata)
155 transaction = connection.begin()
158 q = select([page, categorylinks, revision, text], (page.c.page_latest==revision.c.rev_id) & (text.c.old_id==revision.c.rev_text_id) & (categorylinks.c.cl_from==page.c.page_id) & (categorylinks.c.cl_to==u'Rodelbahn'))
159 sledrun_pages = connection.execute(q)
161 # sql = u"select page_id, rev_id, old_id, page_title, old_text, 'In_Arbeit' in (select cl_to from categorylinks where cl_from=page_id) as under_construction from page, revision, text, categorylinks where page_latest=rev_id and old_id=rev_text_id and cl_from=page_id and cl_to='Rodelbahn' order by page_title"
163 # Delete all existing entries in wrmappointcache
164 # We rely on transactions MySQL InnoDB
165 connection.execute('delete from wrmappointcache')
166 connection.execute('delete from wrmappathcache')
168 # Refill wrmappointcache and wrmappathcache tables
169 for sledrun_page in sledrun_pages:
171 result = mwmarkup.parse_googlemap(sledrun_page.old_text)
172 if not result is None:
173 center, zoom, coords, paths = result
176 lon, lat, point_type, label = coord
177 point_types = {u'Gasthaus': u'hut', u'Haltestelle': u'busstop', u'Parkplatz': u'carpark', u'Achtung': u'warning'}
178 if not point_type is None:
179 if not point_types.has_key(point_type): raise RuntimeError(u'Unknown point type {0}'.format(point_type))
180 point_type = point_types[point_type]
181 sql = u'insert into wrmappointcache (page_id, type, point, label) values (%s, %s, POINT(%s, %s), %s)'
182 connection.execute(sql, (sledrun_page.page_id, point_type, lon, lat, label))
184 for path_type, coords in paths:
185 path_type = path_type.lower()
186 path_types = {u'6#ff014e9a': u'sledrun', u'6#ffe98401': u'walkup', u'6#ff7f7fff': u'alternative', u'3#ff000000': u'lift'}
187 if not path_types.has_key(path_type): raise RuntimeError(u'Unknown path type {0}'.format(path_type))
188 path_type = path_types[path_type]
189 path = u", ".join(["{0} {1}".format(lon, lat) for lon, lat, symbol, title in coords])
190 path = u'LineString({0})'.format(path)
191 sql = u'insert into wrmappathcache (path, page_id, type) values (GeomFromText(%s), %s, %s)'
192 connection.execute(sql, (path, sledrun_page.page_id, path_type))
193 except RuntimeError as e:
194 error_msg = u"Error at sledrun '{0}': {1}".format(sledrun_page.page_title, unicode(e))
195 transaction.rollback()
196 raise UpdateCacheError(error_msg, sledrun_page.page_title, e)