def open(self, header_table, file, max_column_size=2000):
"""
Create any initial files, headings, etc necessary.
"""
self._isopen = True
self.max_column_size = max_column_size
self._current_primary_id = 0
self.file = file
from couchexport.export import _next_unique, _clean_name
self._init()
used_names = []
for table_name, table in header_table:
used_headers = []
table_name_truncated = _clean_name(_next_unique(table_name, used_names,
self.max_table_name_size))
used_names.append(table_name_truncated)
def _truncate(val):
ret = _next_unique(val, used_headers, max_column_size)
used_headers.append(ret)
return ret
assert(len(table) == 1)
row = table[0]
# make sure we trim the headers
row.data = map(_truncate, row.data)
self._init_table(table_name, table_name_truncated)
self._write_row(table_name, row)
def _truncate(val):
ret = _next_unique(val, used_headers, max_column_size)
used_headers.append(ret)
return ret