def _add_to_stash(self, rec):
"""Add record to stash
:type rec: Record
"""
self._stash.append(rec)
for key, val in rec.items():
w0 = self._widths.get(key, len(key))
w = max(w0, len(str(val)))
self._widths[key] = w
if Keyword.is_id(key):
if val not in self._ids:
self._update_prefixlen(val)
self._ids.add(val)
self._newids.add(val)
def _print_page(self, n=None):
"""Print one page, remove rows from stash."""
# header
columns = self._header()
# body
if n is None:
n = self._pagelen - self._pagepos
for i in range(n):
rec = self._stash[i]
row = []
for name, fmtstr in columns:
if Keyword.is_id(name):
s = rec.get(name, '')[:self._idpre]
else:
s = str(rec.get(name, ''))
row.append(fmtstr.format(s))
self._out.write(' '.join(row) + '\n')
# shorten stash
self._stash = self._stash[n:]
def _shorten_ids(self):
"""Shorten id's to prefix."""
for name, w in self._widths.items():
if Keyword.is_id(name):
self._widths[name] = max(len(name), self._idpre)