models.py
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# -*- coding: utf-8 -*-
from itertools import izip
from django.db.models import Model, CharField, TextField, ForeignKey, \
ManyToManyField, BooleanField
from dictionary.models import PartOfSpeech, LexemeAttribute, \
LexemeAttributeValue
from patterns.models import PatternType
from tables.util import prepare_table
class Variant(Model):
TYPE_TABLE = 'table'
TYPE_EXPORT = 'export'
TYPE_CHOICES = (
(TYPE_TABLE, 'tabelka'),
(TYPE_EXPORT, 'eksport'),
)
id = CharField(max_length=32, primary_key=True, db_column='wariant')
type = CharField(max_length=10, choices=TYPE_CHOICES)
def __unicode__(self):
return self.id
class Meta:
db_table = 'warianty'
class TableTemplate(Model):
name = TextField()
variant = ForeignKey(Variant)
parts_of_speech = ManyToManyField(PartOfSpeech)
pattern_types = ManyToManyField(PatternType)
attributes = ManyToManyField(LexemeAttribute)
attribute_values = ManyToManyField(LexemeAttributeValue)
cell_attributes = ManyToManyField(LexemeAttribute, related_name='templates')
takes_gender = BooleanField(default=False)
def filter_cells_attr(self, cells, attr_vals):
for attr in self.cell_attributes.all():
attr_val = [a for a in attr_vals if a.attribute == attr]
if len(attr_val) != 1:
return []
cells = cells.filter(attribute_values=attr_val[0])
return cells
def filter_cells(self, pattern_type, gender, attr_vals):
if self.variant.type == Variant.TYPE_TABLE:
cells = self.table_cells.filter(
pattern_types=pattern_type).select_related('base_form_label')
else:
cells = self.export_cells.filter(
pattern_types=pattern_type).select_related('base_form_label')
if self.takes_gender and gender:
cells = cells.filter(genders=gender)
if attr_vals:
cells = self.filter_cells_attr(cells, attr_vals)
return cells
def filter_table_headers(self, pattern_type, gender, attr_vals):
headers = self.headers.filter(pattern_types=pattern_type)
if self.takes_gender and gender:
headers = headers.filter(genders=gender)
if attr_vals:
headers = self.filter_cells_attr(headers, attr_vals)
return headers
def render_with_pattern(self, pattern, *args, **kwargs):
base_endings = pattern.base_endings()
return self.render(
pattern.type, *args, pattern=pattern, base_endings=base_endings,
**kwargs)
def render_with_pattern_type(self, pattern_type, *args, **kwargs):
base_endings = pattern_type.dummy_base_endings()
return prepare_table(self.render(
pattern_type, *args, base_endings=base_endings, numbers=True,
**kwargs))
def render(self, pattern_type, gender, attr_vals, separated=False,
numbers=False, pattern=None, **forms_kwargs):
table_cells = self.filter_cells(pattern_type, gender, attr_vals)
headers = self.filter_table_headers(pattern_type, gender, attr_vals)
if table_cells is None or headers is None:
return []
rows = set()
last_col = 0
for table_cell in table_cells:
rows.add(table_cell.row)
col = table_cell.col + table_cell.colspan - 1
if col > last_col:
last_col = col
for header in headers:
rows.add(header.row)
col = header.col + header.colspan - 1
if col > last_col:
last_col = col
if numbers:
last_col += 1
table = [[{'type': 'empty'} for i in xrange(last_col)] for row in rows]
rows = sorted(rows)
if numbers:
for row, table_row in izip(rows, table):
table_row[0] = {
'type': 'header',
'label': [row],
'css_class': 'blank',
'rowspan': 1,
'colspan': 1}
# słownik: nr rzędu w bazie -> rzeczywisty numer rzędu
row_translate = dict((r, i) for i, r in enumerate(rows))
for tc in table_cells:
if numbers:
x = tc.col
else:
x = tc.col - 1
y = row_translate[tc.row]
table_cell = table[y][x]
assert table_cell['type'] != 'span'
separator = u'·' if separated else u''
forms = [f + (pattern,)
for f in tc.forms(separator=separator, **forms_kwargs)]
if not forms:
continue
if table_cell['type'] == 'empty':
table[y][x] = {
'type': 'forms',
'forms': forms,
'rowspan': tc.rowspan,
'colspan': tc.colspan,
}
for i in xrange(tc.colspan):
for j in xrange(tc.rowspan):
if (i, j) != (0, 0):
assert table[y + j][x + i]['type'] == 'empty'
table[y + j][x + i]['type'] = 'span'
else:
assert tc.rowspan == table_cell['rowspan']
assert tc.colspan == table_cell['colspan']
table_cell['forms'] += forms
for header in headers:
if numbers:
x = header.col
else:
x = header.col - 1
y = row_translate[header.row]
assert table[y][x]['type'] == 'empty'
table[y][x] = {
'type': 'label',
'label': [header.label],
'css_class': header.css_class,
'rowspan': header.rowspan,
'colspan': header.colspan,
}
for i in xrange(header.colspan):
for j in xrange(header.rowspan):
if (i, j) != (0, 0):
assert table[y + j][x + i]['type'] == 'empty'
table[y + j][x + i]['type'] = 'span'
if numbers:
first_row = [{
'type': 'header',
'label': [col if col != 0 else ''],
'css_class': 'blank',
'rowspan': 1,
'colspan': 1} for col in xrange(last_col)]
table = [first_row] + table
return [row for row in table
if not all(cell['type'] == 'empty' for cell in row)]
def __unicode__(self):
return self.name