Add batchquery tool.
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/batchquery.py Tue Feb 14 18:15:56 2012 +0100
@@ -0,0 +1,59 @@
+#!/usr/bin/env python3.2
+
+from pgtoolkit import toolbase
+from pgtoolkit.highlight import highlight
+
+
+class BatchQueryTool(toolbase.SimpleTool):
+ def __init__(self):
+ toolbase.SimpleTool.__init__(self, name='batchquery', desc='Run a query using columns from CSV file as arguments.')
+ self.parser.add_argument('--query', dest='query', type=str, help='Query to run. Use %s for arguments, or %(name)s for named arguments (see --names).')
+ self.parser.add_argument('--file', dest='file', type=str, help='CSV file with data to use as arguments.')
+ self.parser.add_argument('--init', dest='init', type=str, help='Query which initialize database session (eg. temporary function).')
+ self.parser.add_argument('--output', dest='output', type=str, help='File name for results.')
+ self.parser.add_argument('--header', dest='header', action='store_true', help='First line of CSV is header with names for columns. These name can be used in query.')
+ self.init()
+
+ def _split_line(self, line):
+ return [x.strip() for x in line.split(',')]
+
+ def main(self):
+ results = []
+ # load query from file
+ with open(self.args.query, 'r', encoding='utf8') as f:
+ query = f.read()
+ # connect DB
+ with self.pgm.cursor('target') as curs:
+ # run init query
+ if self.args.init:
+ with open(self.args.init, 'r', encoding='utf8') as f:
+ curs.execute(f.read(), [])
+ # read CSV file
+ with open(self.args.file, 'r', encoding='utf8') as f:
+ # read header
+ names = None
+ if self.args.header:
+ line = f.readline()
+ names = self._split_line(line)
+ # read and process lines
+ for line in f:
+ args = self._split_line(line)
+ if names:
+ args = dict(zip(names, args))
+ curs.execute(query, args)
+ rows = curs.fetchall()
+ results.append((args, rows))
+ curs.connection.commit()
+ # write results to output file
+ if self.args.output:
+ with open(self.args.output, 'w', encoding='utf8') as f:
+ for args, rows in results:
+ f.write(repr(args))
+ f.write(' -> ')
+ f.write(repr(rows))
+ f.write('\n')
+
+
+tool = BatchQueryTool()
+tool.main()
+
--- a/pgtoolkit/toolbase.py Tue Feb 07 11:32:07 2012 +0100
+++ b/pgtoolkit/toolbase.py Tue Feb 14 18:15:56 2012 +0100
@@ -43,8 +43,9 @@
handler = logging.StreamHandler()
handler.setFormatter(format)
handler.setLevel(logging.DEBUG)
- logger = logging.getLogger('pgmanager')
+ logger = logging.getLogger('pgmanager_sql')
logger.addHandler(handler)
+ logger.setLevel(logging.DEBUG)
def prepare_conn_from_metadb(self, name, lookup_name):
'''Create connection in pgmanager using meta DB.