258 lines
8.6 KiB
Python
258 lines
8.6 KiB
Python
#
|
|
# Copyright (c) 2013 Helmut Merz helmutm@cy55.de
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 2 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program; if not, write to the Free Software
|
|
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
#
|
|
|
|
"""
|
|
Field and field instance classes for grids.
|
|
"""
|
|
|
|
from zope import component
|
|
from zope.component import adapts
|
|
from zope.interface import implements
|
|
from zope.app.pagetemplate import ViewPageTemplateFile
|
|
from zope.cachedescriptors.property import Lazy
|
|
import zope.schema
|
|
|
|
from cybertools.composer.schema.factory import createField
|
|
from cybertools.composer.schema.field import Field, ListFieldInstance
|
|
from cybertools.composer.schema.interfaces import IField, IFieldInstance
|
|
from cybertools.composer.schema.interfaces import fieldTypes, undefined
|
|
from cybertools.util.format import toStr, toUnicode
|
|
from cybertools.util import json
|
|
|
|
|
|
grid_macros = ViewPageTemplateFile('grid_macros.pt')
|
|
|
|
|
|
class GridFieldInstance(ListFieldInstance):
|
|
|
|
@Lazy
|
|
def columnTypes(self):
|
|
return [createField(t) for t in self.context.column_types]
|
|
|
|
@Lazy
|
|
def columnFieldInstances(self):
|
|
result = []
|
|
for f in self.columnTypes:
|
|
instanceName = (f.instance_name or
|
|
f.getFieldTypeInfo().instanceName)
|
|
fi = component.getAdapter(f, IFieldInstance, name=instanceName)
|
|
fi.clientInstance = self.clientInstance
|
|
fi.clientContext = self.clientContext
|
|
fi.request = self.request
|
|
result.append(fi)
|
|
return result
|
|
|
|
def marshall(self, value):
|
|
if isinstance(value, basestring):
|
|
return value
|
|
v = value or []
|
|
for row in v:
|
|
for fi in self.columnFieldInstances:
|
|
vr = fi.marshall(row[fi.name])
|
|
if isinstance(vr, basestring):
|
|
row[fi.name] = vr.replace('\n', '\\n').replace('"', '\\"')
|
|
empty = {}
|
|
for fi in self.columnFieldInstances:
|
|
default = fi.default
|
|
if default is None:
|
|
default = ''
|
|
empty[fi.name] = str(default)
|
|
for i in range(3):
|
|
v.append(empty)
|
|
return json.dumps(dict(items=v))
|
|
|
|
def display(self, value):
|
|
headers = [fi.context.title for fi in self.columnFieldInstances]
|
|
rows = []
|
|
value = value or []
|
|
cardinality = getattr(self.context, 'cardinality', None)
|
|
for item in value:
|
|
rows.append([fi.display(item.get(fi.name))
|
|
for fi in self.columnFieldInstances])
|
|
if cardinality > len(value):
|
|
for item in range(len(value), self.context.cardinality):
|
|
rows.append([fi.display(fi.default)
|
|
for fi in self.columnFieldInstances])
|
|
empty = not rows or (len(rows) == 1 and not [v for v in rows[0] if v])
|
|
return dict(headers=headers, rows=rows, empty=empty)
|
|
|
|
def unmarshall(self, value):
|
|
value = toUnicode(value.strip())
|
|
if not value:
|
|
return []
|
|
result = []
|
|
rows = json.loads(value)['items']
|
|
for idx, row in enumerate(rows):
|
|
item = self.unmarshallRow(row, idx)
|
|
if item:
|
|
result.append(item)
|
|
return result
|
|
|
|
def dummy(self):
|
|
for row in rows:
|
|
item = {}
|
|
empty = True
|
|
for fi in self.columnFieldInstances:
|
|
value = fi.unmarshall(row[fi.name])
|
|
item[fi.name] = value
|
|
if fi.default is not None:
|
|
if value != fi.default:
|
|
empty = False
|
|
elif value:
|
|
empty = False
|
|
if not empty:
|
|
result.append(item)
|
|
return result
|
|
|
|
def unmarshallRow(self, row, idx=None):
|
|
item = {}
|
|
cardinality = getattr(self.context, 'cardinality', None)
|
|
for fi in self.columnFieldInstances:
|
|
if idx is not None:
|
|
fi.index = idx
|
|
value = fi.unmarshall(row.get(fi.name) or u'')
|
|
if isinstance(value, basestring):
|
|
value = value.strip()
|
|
if idx < cardinality:
|
|
item[fi.name] = value
|
|
else:
|
|
if fi.default is not None:
|
|
if value == fi.default:
|
|
continue
|
|
if value:
|
|
item[fi.name] = value
|
|
ignoreInCheckOnEmpty = getattr(self.context, 'ignoreInCheckOnEmpty', [])
|
|
for k, v in item.items():
|
|
if k not in ignoreInCheckOnEmpty: #and v != '__no_change__':
|
|
return item
|
|
return {}
|
|
|
|
|
|
class RecordsFieldInstance(GridFieldInstance):
|
|
|
|
def getRenderer(self, name):
|
|
return grid_macros.macros.get(name)
|
|
|
|
def marshall(self, value):
|
|
result = []
|
|
value = value or []
|
|
cardinality = getattr(self.context, 'cardinality', None)
|
|
for row in value:
|
|
item = {}
|
|
for fi in self.columnFieldInstances:
|
|
item[fi.name] = fi.marshall(row.get(fi.name))
|
|
result.append(item)
|
|
if cardinality > len(value):
|
|
for row in range(len(value), cardinality):
|
|
item = {}
|
|
for fi in self.columnFieldInstances:
|
|
item[fi.name] = fi.marshall(fi.default)
|
|
result.append(item)
|
|
return result
|
|
|
|
def unmarshall(self, value):
|
|
if not value:
|
|
value = []
|
|
result = []
|
|
oldValue = getattr(self.clientContext, self.name, None) or []
|
|
for idx, row in enumerate(value):
|
|
item = self.unmarshallRow(row, idx)
|
|
if item:
|
|
oldItem = {}
|
|
if len(oldValue) > idx:
|
|
oldItem = oldValue[idx]
|
|
for k, v in item.items():
|
|
if v == '__no_change__':
|
|
if k in oldItem:
|
|
item[k] = oldItem[k]
|
|
else:
|
|
del item[k]
|
|
if item:
|
|
result.append(item)
|
|
return result
|
|
|
|
def validate(self, value, data=None):
|
|
if not value:
|
|
if self.context.required:
|
|
self.setError('required_missing')
|
|
else:
|
|
return
|
|
for row in value:
|
|
for fi in self.columnFieldInstances:
|
|
fi.validate(row.get(fi.name) or u'')
|
|
|
|
|
|
class KeyTableFieldInstance(RecordsFieldInstance):
|
|
|
|
@Lazy
|
|
def keyName(self):
|
|
return self.columnTypes[0].name
|
|
|
|
@Lazy
|
|
def dataNames(self):
|
|
return [f.name for f in self.columnTypes[1:]]
|
|
|
|
def display(self, value):
|
|
headers = [fi.context.title for fi in self.columnFieldInstances]
|
|
rows = []
|
|
if value is None:
|
|
value = {}
|
|
for k, v in value.items():
|
|
row = [k]
|
|
for idx, fi in enumerate(self.columnFieldInstances[1:]):
|
|
if len(v) > idx:
|
|
row.append(fi.display(v[idx]))
|
|
rows.append(row)
|
|
return dict(headers=headers, rows=rows)
|
|
|
|
def marshall(self, value):
|
|
result = []
|
|
if not value:
|
|
return result
|
|
for k, v in value.items():
|
|
item = {self.keyName: k}
|
|
for idx, name in enumerate(self.dataNames):
|
|
if len(v) > idx:
|
|
item[name] = v[idx]
|
|
else:
|
|
item[name] = None
|
|
result.append(item)
|
|
return result
|
|
|
|
def unmarshall(self, value):
|
|
if not value:
|
|
value = {}
|
|
result = {}
|
|
for idx, row in enumerate(value):
|
|
item = self.unmarshallRow(row, idx)
|
|
if item:
|
|
result[item.pop(self.keyName)] = [item.get(name) or u''
|
|
for name in self.dataNames]
|
|
return result
|
|
|
|
def validate(self, value, data=None):
|
|
pass
|
|
|
|
|
|
class ContextBasedKeyTableFieldInstance(KeyTableFieldInstance):
|
|
|
|
@Lazy
|
|
def columnTypes(self):
|
|
obj = self.clientInstance.context
|
|
return [Field(name) for name in obj.columnNames]
|
|
|