def main():
"""Generates public data dump files from the latest prod data."""
# Connect to the latest schemas.
db = DatabaseConnection(path_config='db_config.yaml')
schema = db.get_latest_schema('prod_')
schema_profil = db.get_latest_schema('source_internal_profil_')
db.execute('SET search_path="' + schema + '", "' + schema_profil + '";')
timestamp = schema[schema.rfind('_') + 1:]
print('[OK] Dumping from schemas "%s" and "%s"...' %
(schema, schema_profil))
# Read YAML configuration file.
config = yaml_load('public_dumps.yaml')
dir_save = config['save_directory']
dumps = config['dumps']
# Process all dumps.
for dump_name in dumps:
save_path = os.path.join(dir_save,
'%s_%s.csv' % (dump_name, timestamp))
db.dump_to_CSV(dumps[dump_name]['query'], save_path)
print('[OK] Saved dump "%s" to %s' % (dump_name, save_path))
stage_path = os.path.join(dir_save, dump_name + '.csv')
shutil.copyfile(save_path, stage_path)
print('[OK] Copied dump "%s" to %s' % (dump_name, stage_path))
# Close database connection.
db.close()
def get_source_data_info():
""" Returns a list of data sources, together with information about
the latest update (timestamp, list of table names and columns) """
# Establish connection to the database
db = DatabaseConnection(path_config='db_config_data.yaml')
# Iterate through sources listed in sources.json
sources = json_load('../data/sources.json')
result = []
for source in sources:
# Obtain schema with the last update
try:
schema = db.get_latest_schema('source_' + source['name'])
except Exception as exception:
print('[WARNING] %s' % (exception))
continue
# Store information to be returned
result.append({
'description': source['description'],
'name': source['name'],
'schema': schema,
'tables': _get_tables_and_columns_in_schema(db, schema),
'update': _datetimestr_from_schema(schema),
})
# Close database connection and return the result
db.close()
return result
def consolidate_entities(read_only):
db = DatabaseConnection(path_config='utils/db_config.yaml',
search_path='mysql')
ids1, eids1, edges = consolidate_people(db)
ids2, eids2 = consolidate_companies(db)
cur = db.dict_cursor()
# 1. Reset eids to be equal to ids in entities.
print "Reset eids"
cur.execute("update entities set eid = id;")
# 2. Consolidate people
print "Update DB with people eids"
update_eids_of_ids(cur, ids1, eids1)
# 3. Consolidate companies
print "Update DB with companies eids"
update_eids_of_ids(cur, ids2, eids2)
# 4. Remove neighbour edges
print "Delete neighbour edges"
cur.execute("DELETE from related where source=%s", ("neighbour", ))
# 5. Add new neighbour edges
add_neighbour_edges(cur, edges)
# 6. Update related table
print "Updating related eids"
cur.execute(
"UPDATE related SET eid1=entities.eid FROM entities WHERE related.id1=entities.id;"
)
cur.execute(
"UPDATE related SET eid2=entities.eid FROM entities WHERE related.id2=entities.id;"
)
cur.close()
if not read_only:
db.commit()
db.close()
def get(self):
# Return politicians augmented with property counts as JSON
db = DatabaseConnection(path_config='db_config.yaml',
search_path='kataster')
politicians = get_politicians_with_Folio_counts(db)
db.close()
self.returnJSON(politicians)
def reveal_connection_to_politics(max_relations_to_load, num_contracts,
max_distance, path_output):
"""Reveals connections between recent contract winners and politics.
Args:
max_relations_to_load: Maximum number of relations to load from
production table `related`. Use a smaller number for faster
debugging only.
num_contracts: Number of most recent contracts to analyse.
max_distance: Maximum distance at which connections are reported.
path_output: Path where to write the resulting report.
"""
# Connect to the database:
db = DatabaseConnection(path_config='db_config.yaml')
schema = db.get_latest_schema('prod_')
db.execute('SET search_path to ' + schema + ';')
# Load relations and notable eIDs:
relations = server._initialise_relations(db, max_relations_to_load)
notable_eids = server._initialise_notable_eids(db)
# Retrieve most recent contracts with positive price:
q = """
SELECT
supplier_eid,
entities.name AS supplier_name,
contract_price_amount,
contract_price_total_amount,
signed_on,
effective_from,
effective_to,
status_id,
contract_id
FROM
contracts
INNER JOIN
entities ON entities.id=contracts.supplier_eid
WHERE
signed_on IS NOT NULL
AND signed_on <= now()
AND (
contract_price_amount > 0 OR contract_price_total_amount > 0
)
AND entities.name LIKE '%%.'
AND entities.name NOT LIKE '%%lovensk%%'
ORDER BY
signed_on DESC
LIMIT %s;
"""
with open(path_output, "w") as file_output:
rows = db.query(q, [num_contracts])
for row in tqdm.tqdm(rows):
report_on(row, relations, notable_eids, max_distance, db,
file_output)
db.close()
def main(args_dict):
test_mode = not args_dict['disable_test_mode']
if test_mode:
print "======================="
print "=======TEST MODE======="
print "======================="
timestamp = datetime.now().strftime('%Y%m%d%H%M%S')
# Write output into prod_schema_name
prod_schema_name = "prod_" + timestamp
print "prod_schema_name", prod_schema_name
# Create database connections:
# Read / write address cache from this one
db_address_cache = DatabaseConnection(
path_config='db_config_update_source.yaml',
search_path='address_cache')
# Write prod tables into this one
db_prod = DatabaseConnection(path_config='db_config_update_source.yaml')
CreateAndSetProdSchema(db_prod, prod_schema_name)
# Initialize geocoder
geocoder = geocoder_lib.Geocoder(db_address_cache, db_prod, test_mode)
# Initialize entity lookup
entities_lookup = entities.Entities(db_prod)
# Table prod_tables.yaml defines a specifications of SQL selects to read
# source data and describtion of additional tables to be created.
with open('prod_tables.yaml', 'r') as stream:
config = yaml.load(stream)
# This is where all the population happens!!!
# Go through all the specified data sources and process them, adding data
# as needed. We process them in the order!
for key in sorted(config.keys()):
config_per_source = config[key]
print "Working on source:", key
ProcessSource(db_prod, geocoder, entities_lookup, config_per_source,
test_mode)
print "GEOCODER STATS"
geocoder.PrintStats()
# Grant apps read-only access to the newly created schema and tables within
db_prod.grant_usage_and_select_on_schema(prod_schema_name, 'data')
db_prod.grant_usage_and_select_on_schema(prod_schema_name, 'verejne')
db_prod.grant_usage_and_select_on_schema(prod_schema_name, 'kataster')
db_prod.grant_usage_and_select_on_schema(prod_schema_name, 'prepojenia')
db_prod.grant_usage_and_select_on_schema(prod_schema_name, 'obstaravania')
# Commit database changes and close database connections
db_address_cache.commit()
db_address_cache.close()
if test_mode:
db_prod.conn.rollback()
else:
db_prod.commit()
db_prod.close()
def get_prod_data_info():
""" Return list of tables and column names from the current production tables,
and the time when these were generated. """
db = DatabaseConnection(path_config='db_config_data.yaml')
schema = db.get_latest_schema('prod_')
response = {
'schema': schema,
'tables': _get_tables_and_columns_in_schema(db, schema),
'update': _datetimestr_from_schema(schema),
}
db.close()
return response
def get(self):
# Parse politician id
try:
politician_id = int(self.request.GET["id"])
except:
self.abort(400, detail="Could not parse parameter 'id' as int")
# Find Parcels owned by this politician in the database
db = DatabaseConnection(path_config='db_config.yaml',
search_path='kataster')
Parcels = get_Parcels_owned_by_Person(db, politician_id)
db.close()
self.returnJSON(Parcels)
def get(self):
# Parse politician id
try:
politician_id = int(self.request.GET["id"])
except:
self.abort(400, detail="Could not parse parameter 'id' as int")
# Find asset declarations of this politician in the database
db = DatabaseConnection(path_config='db_config.yaml',
search_path='kataster')
declarations = get_asset_declarations(db, politician_id)
db.close()
self.returnJSON(declarations)
def get(self):
# Parse politician id
try:
politician_id = int(self.request.GET["id"])
except:
self.abort(400, detail="Could not parse parameter 'id' as int")
# Get politician information from database
db = DatabaseConnection(path_config='db_config.yaml',
search_path='kataster')
politician = get_politician_by_PersonId(db, politician_id)
db.close()
if politician is None:
self.abort(404,
detail="Could not find politician with provided 'id'")
self.returnJSON(politician)
def update_CSV_source(source, timestamp, dry_run, verbose):
# Load the CSV file
with open(source['path'], 'r') as f:
delimiter = str(source['delimiter']) # requires string, not unicode
reader = csv.reader(f, delimiter=delimiter)
# Extract column names from header line and then the actual data
header = next(reader)
column_names = [column_name.decode('utf-8') for column_name in header]
data = [tuple(row) for row in reader]
if verbose:
print('Loaded CSV file with %d columns and %d data rows' % (len(column_names), len(data)))
# Create postgres schema
db = DatabaseConnection(path_config='db_config_update_source.yaml')
schema = 'source_' + source['name'] + '_' + timestamp
q = 'CREATE SCHEMA %s; SET search_path="%s";' % (schema, schema)
db.execute(q)
# Compute normalised column names, saving original names in a separate table
column_names_normalised = map(normalise_CSV_column_name, column_names)
q = 'CREATE TABLE column_names (name_original text, name_normalised text);'
db.execute(q)
q = """INSERT INTO column_names VALUES %s;"""
q_data = [(original, normalised) for original, normalised in zip(column_names, column_names_normalised)]
db.execute_values(q, q_data)
# Create table containing the actual data from the CSV file
table = source['table_name']
table_columns = ', '.join(['%s text' % (name) for name in column_names_normalised])
q = 'CREATE TABLE %s (%s);' % (table, table_columns)
db.execute(q)
# Populate the table with data
q = 'INSERT INTO ' + table + ' VALUES %s;'
db.execute_values(q, data)
if verbose:
print('Inserted %d rows into %s.%s%s' % (len(data), schema, table, ' (dry run)' if dry_run else ''))
# Grant privileges to user data for data/SourceDataInfo to work properly
db.grant_usage_and_select_on_schema(schema, 'data')
# Commit and close database connection
if not dry_run:
db.commit()
db.close()
def subgraph(self, set_A, set_B):
# Compute distance of each vertex from A and from B
dists_A = self.dijkstra(set_A, set_B, return_all=True)
dists_B = self.dijkstra(set_B, set_A, return_all=True)
dists_AB = [dists_A[v] for v in set_B if v in dists_A]
if len(dists_AB) == 0:
return {'vertices': [], 'edges': []}
dist_AB = min([dists_A[v] for v in set_B if v in dists_A])
# Determine subgraph's vertices (eIDs)
vertices_eids = set()
vertices_eids.update(set_A)
vertices_eids.update(set_B)
tolerance = 1
for v in dists_A:
if (v in dists_B) and (dists_A[v] + dists_B[v] <= dist_AB + tolerance):
vertices_eids.add(v)
# Obtain entity name for chosen vertices
db = DatabaseConnection(search_path='mysql')
q = """
SELECT eid, entity_name FROM entities
WHERE entities.eid IN %s;
"""
q_data = (tuple(vertices_eids),)
rows = db.query(q, q_data)
db.close()
eid_to_name = {row['eid']: row['entity_name'] for row in rows}
# Add entity names and distances to vertices
vertices = []
for eid in vertices_eids:
vertices.append({
'eid': eid,
'entity_name': eid_to_name[eid],
'distance_from_A': dists_A.get(eid, None),
'distance_from_B': dists_B.get(eid, None),
})
# Build subgraph's edges
edges = []
for v1, v2, length in self.edges:
if (v1 in vertices_eids) and (v2 in vertices_eids):
edges.append((v1, v2, length))
return {'vertices': vertices, 'edges': edges}
def __init__(self):
log('Connecting to the database...')
db = DatabaseConnection(path_config='db_config.yaml', search_path='mysql')
with open("db_config.yaml", "r") as stream:
config = yaml.load(stream)
log('Relations constructor...')
q = """SELECT eid1, eid2, length FROM related LIMIT %s"""
q_data = [int(config["relations_to_load"])]
for row in db.query(q, q_data):
self.edges.append((row["eid1"], row["eid2"], float(row["length"])))
self.edges.append((row["eid2"], row["eid1"], float(row["length"])))
db.close()
log('Sorting edges...')
self.edges.sort()
log('Creating start indices...')
for i in xrange(len(self.edges)):
cur = self.edges[i][0]
if cur in self.start_index: continue
self.start_index[cur] = i
def generate_public_data_dumps(limit=None, verbose=False):
""" Generates the public data dump files from the latest production data """
# Connect to the latest production data schema
db = DatabaseConnection(path_config='db_config_update_source.yaml')
schema = db.get_latest_schema('prod_')
db.execute('SET search_path="' + schema + '";')
timestamp = schema[schema.rfind('_') + 1:]
if verbose:
print('[OK] Dumping from schema "%s"...' % (schema))
if limit is not None:
print('[WARNING] Dumping with row limit %d!' % (limit))
# Read YAML configuration file
config = yaml_load('public_dumps.yaml')
dir_save = config['save_directory']
dumps = config['dumps']
# Process all dumps
for dump_name in dumps:
# Construct dump query
q = dumps[dump_name]['query']
q = q.rstrip().rstrip(';') # possibly remove ; ending
if limit is not None:
q += ' LIMIT %d' % (limit)
# Dump to CSV without timestamp
path_output = '%s%s.csv' % (dir_save, dump_name)
db.dump_to_CSV(q, path_output)
if verbose:
print('[OK] Created dump "%s" in %s' % (dump_name, path_output))
# Dump to CSV with timestamp
path_output = '%s%s_%s.csv' % (dir_save, dump_name, timestamp)
db.dump_to_CSV(q, path_output)
if verbose:
print('[OK] Created dump "%s" in %s' % (dump_name, path_output))
# Close database connection
db.close()
def update_JSON_source(source, timestamp, dry_run, verbose):
# Load the JSON file
data = json_load(source['path'])
# Obtain column names appearing anywhere in the JSON
columns = sorted(list(set(chain.from_iterable([datum.keys() for datum in data]))))
if verbose:
print('Loaded JSON files with %d columns and %d data rows' % (len(columns), len(data)))
# Reorganise data into a list of tuples
data = [tuple(datum[column] if column in datum else "" for column in columns) for datum in data]
# Create postgres schema
db = DatabaseConnection(path_config='db_config_update_source.yaml')
schema = 'source_' + source['name'] + '_' + timestamp
q = 'CREATE SCHEMA "%s"; SET search_path="%s";' % (schema, schema)
db.execute(q)
# Create table containing the actual data from the CSV file
table = source['table_name']
table_columns = ', '.join(['%s text' % (name) for name in columns])
q = 'CREATE TABLE %s (%s);' % (table, table_columns)
db.execute(q)
# Populate the table with data
q = 'INSERT INTO ' + table + ' VALUES %s;'
db.execute_values(q, data)
if verbose:
print('Inserted %d rows into %s.%s%s' % (len(data), schema, table, ' (dry run)' if dry_run else ''))
# Grant privileges to user data for data/SourceDataInfo to work properly
db.grant_usage_and_select_on_schema(schema, 'data')
# Commit and close database connection
if not dry_run:
db.commit()
db.close()
def update_SQL_source(source, timestamp, dry_run, verbose):
# Check that the (temporary) schema names created by this data source
# do not conflict with existing schemas in the database
db = DatabaseConnection(path_config='db_config_update_source.yaml')
q = """SELECT schema_name FROM information_schema.schemata WHERE schema_name IN %s LIMIT 1;"""
q_data = (tuple(source['schemas']),)
res = db.query(q, q_data, return_dicts=False)
db.close()
if len(res) >= 1:
raise Exception('Schema "%s" that source "%s" reads into already exists' % (res[0][0], source['name']))
if verbose:
print('[OK] No conflicting schema names found')
# Download online resource if a URL is specified, storing it at the
# location specified in source['path']
if ('url' in source):
urllib.urlretrieve(source['url'], source['path'])
if verbose:
print('[OK] Downloaded from %s to %s' % (source['url'], source['path']))
if dry_run:
print('[WARNING] --dry_run option not implemented for entire pipeline of updating an SQL source')
db.close()
return
# Load into postgres, unzipping along the way
if source['path'].endswith('.sql.gz'):
p1 = subprocess.Popen(['gunzip', '-c', source['path']], stdout=subprocess.PIPE)
subprocess.check_output(['psql', '-d', 'vd', '-q'], stdin=p1.stdout)
# Load into postgres directly
else:
# The options -q -o /dev/null just suppress output
subprocess.call(['psql', '-d', 'vd', '-f', source['path'], '-q', '-o', '/dev/null'])
# Rename loaded schema(s) to the desired schema name(s)
# If there is a single schema, rename it to source_NAME_TIMESTAMP
# If there are multiple schemas, rename them to source_NAME_SCHEMA_TIMESTAMP
db = DatabaseConnection(path_config='db_config_update_source.yaml')
if len(source['schemas']) == 1:
schema_old = source['schemas'][0]
schema_new = 'source_' + source['name'] + '_' + timestamp
db.rename_schema(schema_old, schema_new, verbose)
# Grant privileges to user data for data/SourceDataInfo to work properly
db.grant_usage_and_select_on_schema(schema_new, 'data')
else:
for schema_old in source['schemas']:
schema_new = 'source_' + source['name'] + '_' + schema_old + '_' + timestamp
db.rename_schema(schema_old, schema_new, verbose)
# Grant privileges to user data for data/SourceDataInfo to work properly
db.grant_usage_and_select_on_schema(schema_new, 'data')
# Commit and close database connection
db.commit()
db.close()
def ProcessSource(db_prod, geocoder, entities, config, test_mode):
""" Process one source table (read from db_source) using the config and
performing normalization using the given geocoder and entities lookup.
The produced data are written into db_prod connection. The function writes
new entities and addresses in to the Entities and Address tables. It also
creates and populates supplementary tables as specified by a config.
"""
# Connect to the most recent schema from the current source
db_source = DatabaseConnection(path_config='db_config_update_source.yaml')
source_schema_name = db_source.get_latest_schema('source_' +
config["source_schema"])
print "Processing source_schema_name", source_schema_name
db_source.execute('SET search_path="' + source_schema_name + '";')
columns_for_table = {}
with db_prod.dict_cursor() as cur:
# Create supplementaty tables using the provided command.
# Also store the columns of the table for later use.
for table in config["tables"]:
table_config = config["tables"][table]
columns_for_table[table] = table_config["columns"]
cur.execute(table_config["create_command"])
def AddValuesToTable(columns, values, eid, supplier_eid=None):
if eid is not None:
columns += ["eid"]
values += [eid]
if supplier_eid is not None:
columns += ["supplier_eid"]
values += [supplier_eid]
if all(v is None for v in values):
# Ignore this entry, all meaningful values are None
return
# TODO: find out how to build SQL statement properly
column_names = ",".join(columns)
values_params = ",".join(["%s"] * (len(columns)))
command = ("INSERT INTO %s (" + column_names + ") " + "VALUES (" +
values_params + ") " + "ON CONFLICT DO NOTHING")
with db_prod.dict_cursor() as cur:
cur.execute(command, [AsIs(table)] + values)
def AddToTable(row, table, eid, years, supplier_eid=None):
""" Add values for the given row into the supplementary table 'table'.
It reads the corresponding values from the row and adds them into the
table with the corresponding eid.
"""
columns = list(columns_for_table[table])
if years:
for year in years:
values = []
columns_per_year = columns[:]
for column in columns:
col_name = column + "_" + str(year)
if col_name in row:
values.append(row[col_name])
else:
values.append(None)
columns_per_year.append("year")
values.append(year)
AddValuesToTable(columns_per_year, values, eid)
else:
values = [row[column] for column in columns]
AddValuesToTable(columns, values, eid, supplier_eid)
with db_source.dict_cursor() as cur:
# Read data using the given command.
print "Executing SQL command ..."
suffix_for_testing = ""
if test_mode:
suffix_for_testing = " LIMIT 1000"
cur.execute(config["command"] + suffix_for_testing)
print "Done."
missed = 0
found = 0
empty = 0
missed_eid = 0
found_eid = 0
missed_addresses = set([])
for row in cur:
# Read entries one by one and try to geocode them. If the address
# lookup succeeds, try to normalize the entities. If it succeeds,
# insert into Entities and supplementary tables.
address = ""
if "address" in row:
address = row["address"]
if address is None: continue
name = ""
if "name" in row:
name = row["name"]
if name is None: continue
# Sometimes FirstName and Surname are joined. Lets try the simplest splitting on Capital
# letters.
if (len(name.split()) == 1):
name = ' '.join(re.findall('[A-Z][^A-Z]*', name))
addressId = geocoder.GetAddressId(address.encode("utf8"))
if addressId is None:
if address == "":
empty += 1
else:
if test_mode and missed < 10:
print "MISSING ADDRESS", address.encode("utf8")
missed_addresses.add(address)
missed += 1
continue
found += 1
eid = None
if config.get("no_entity_id"):
# TODO(rasto): is the address lookup necessary here?
eid = None
else:
eid = entities.GetEntity(row["ico"], name, addressId)
if found % 20000 == 0:
print "Progress:", found
sys.stdout.flush()
if config.get("save_org_id"):
entities.AddOrg2Eid(row["org_id"], eid)
if config.get("use_org_id_as_eid_relation"):
eid2 = entities.GetEidForOrgId(row["eid_relation"])
if eid2 is None:
continue
row["eid_relation"] = eid2
if config.get("extract_description_from_body"):
row["body"] = ExtractDescriptionFromBody(row["body"])
supplier_eid = None
if config.get("supplier_eid"):
supplier_address_id = None
if "supplier_address" in row and not row[
"supplier_address"] is None:
supplier_address = row["supplier_address"]
if supplier_address:
supplier_address_id = geocoder.GetAddressId(
supplier_address.encode("utf8"))
if supplier_address_id is None:
missed_addresses.add(supplier_address)
missed += 1
continue
else:
empty += 1
supplier_name = ""
if "supplier_name" in row and not row["supplier_name"] is None:
supplier_name = row["supplier_name"]
supplier_eid = entities.GetEntity(row["supplier_ico"],
supplier_name,
supplier_address_id)
if table_config.get("strip_html"):
for strip_html_column in table_config["strip_html"]:
if row.get(strip_html_column):
row[strip_html_column] = StripHtml(
row[strip_html_column])
if eid is None: missed_eid += 1
found_eid += 1
AddToTable(row, table, eid, table_config.get("years"),
supplier_eid)
print "FOUND", found
print "MISSED", missed
print "EMPTY", empty
print "MISSED UNIQUE", len(missed_addresses)
print "FOUND EID", found_eid
print "MISSED EID", missed_eid
db_source.close()
