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Truncate ids in SQL IN clause #49

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Truncate ids in SQL IN clause #49

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10 changes: 10 additions & 0 deletions devserver/modules/sql.py
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Original file line number Diff line number Diff line change
Expand Up @@ -30,7 +30,17 @@ def format(text, *args, **kwargs):
import re
_sql_fields_re = re.compile(r'SELECT .*? FROM')
_sql_aggregates_re = re.compile(r'SELECT .*?(COUNT|SUM|AVERAGE|MIN|MAX).*? FROM')
_sql_in_numbers_re = re.compile(r'IN\s*\(([\d\s,]+)\)')

def truncate_sql(sql, aggregates=True):
def truncate_number_list(match):
numbers = match.group(1).split(',')
result = [x.strip() for x in numbers[:5]]
if len(numbers) > len(result):
result.append('...')
return u'IN (%s)' % (u', '.join(result))
sql = _sql_in_numbers_re.sub(truncate_number_list, sql)

if not aggregates and _sql_aggregates_re.match(sql):
return sql
return _sql_fields_re.sub('SELECT ... FROM', sql)
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