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modelbrowser.py
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modelbrowser.py
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from PyQt5 import Qt, QtGui, QtWidgets, QtCore
import telepat
from telepat.models import TelepatBaseObject
from models.telepatobject import TelepatObject
from workers import SubscribeWorker, UnsubscribeWorker
from objecteditor import ObjectEditor
from event import TelepatObjectUpdateEvent
import console
class ModelSortFilterProxyModel(QtCore.QSortFilterProxyModel):
def filterAcceptsRow(self, row_num, parent):
model = self.sourceModel()
text = self.filterRegExp().pattern()
if not len(text):
return True
row = [model.item(row_num, column_num) for column_num in range(model.columnCount())]
tests = []
for col in range(0, len(row)-1):
tests.append(text.lower() in row[col].text().lower())
return True in tests
class BrowserModel(QtGui.QStandardItemModel):
ignored_colums = ["type", "application_id", "context_id", "model"]
def __init__(self, parent, objects):
super(BrowserModel, self).__init__(parent)
self.objects = objects
# Create a list of columns
columns = []
for obj in objects:
for key in obj.keys():
if not key in columns and not key in self.ignored_colums:
columns.append(key)
# Move "id" at the first column
if "id" in columns:
columns.insert(0, columns.pop(columns.index("id")))
self.setColumnCount(len(columns))
self.setHorizontalHeaderLabels(columns)
# Populate according to columns
for obj in objects:
items_row = []
for col in columns:
if col in obj.keys():
if isinstance(obj[col], str) or isinstance(obj[col], int):
items_row.append(QtGui.QStandardItem(str(obj[col])))
elif isinstance(obj[col], dict):
items_row.append(QtGui.QStandardItem("[ Object ]"))
else:
items_row.append(QtGui.QStandardItem(""))
else:
items_row.append(QtGui.QStandardItem(""))
self.appendRow(items_row)
def event(self, event):
if isinstance(event, TelepatObjectUpdateEvent):
updated_object = event.obj
changed_property = event.notification.path.split('/')[-1:][0]
# update the internal objects storage
for n, i in enumerate(self.objects):
if i.id == updated_object.id:
self.objects[n] = updated_object
break
# update the UI
i = 0
while self.item(i):
obj_id = self.item(i).text()
if obj_id == updated_object.id:
for j in range(0, self.columnCount()):
if self.headerData(j, QtCore.Qt.Horizontal, QtCore.Qt.DisplayRole) == changed_property:
self.setData(self.index(i, j), event.notification.value)
break
i += 1
return super(BrowserModel, self).event(event)
class ModelBrowser(QtWidgets.QWidget):
channel = None
def browseModel(self, telepat_context, telepat_model, app_users):
self.telepat_context = telepat_context
self.telepat_model = telepat_model
self.app_users = app_users
if self.channel:
self.unsubscribe()
def on_subscribe_success(channel, objects):
self.model = BrowserModel(self.treeView, objects)
self.proxyModel = ModelSortFilterProxyModel(self)
self.proxyModel.setSourceModel(self.model)
self.proxyModel.setFilterCaseSensitivity(QtCore.Qt.CaseInsensitive)
self.treeView.setModel(self.proxyModel)
self.treeView.resizeColumnToContents(0)
self.channel = channel
self.channel.on_update_object = self.on_update_object
def on_subscribe_failure(err_code, err_message):
print("Error msg: {0}".format(err_message))
if not hasattr(self, "treeView"):
self.treeView = self.findChild(QtWidgets.QTreeView, "treeView")
self.treeView.setSortingEnabled(True)
self.treeView.setRootIsDecorated(False)
self.treeView.setEditTriggers(QtWidgets.QAbstractItemView.NoEditTriggers)
self.treeView.doubleClicked.connect(self.editObject)
if not hasattr(self, "bFilterLineEdit"):
self.bFilterLineEdit = self.findChild(QtWidgets.QLineEdit, "bFilterLineEdit")
self.bFilterLineEdit.textChanged.connect(self.filterChanged)
self.treeView.setModel(None)
worker = SubscribeWorker(self, telepat_context, telepat_model, TelepatBaseObject)
worker.success.connect(on_subscribe_success)
worker.failed.connect(on_subscribe_failure)
worker.log.connect(console.log)
worker.start()
def filterChanged(self):
if hasattr(self, "proxyModel"):
self.proxyModel.invalidateFilter()
self.proxyModel.setFilterFixedString(self.bFilterLineEdit.text())
def editObject(self, index):
def object_saved(updated_object):
row = self.proxyModel.mapToSource(index).row()
obj = index.model().sourceModel().objects[row]
telepat_object = TelepatBaseObject(updated_object.to_json())
patches = obj.patch_against(telepat_object)
self.channel.patch(updated_object)
def object_dismissed():
if hasattr(self, "object_editor"):
del self.object_editor
row = self.proxyModel.mapToSource(index).row()
obj = index.model().sourceModel().objects[row]
self.object_editor = ObjectEditor(self, self.telepat_context, self.app_users, TelepatObject(obj.to_json()))
self.object_editor.saved.connect(object_saved)
self.object_editor.rejected.connect(object_dismissed)
self.object_editor.show()
def on_update_object(self, updated_object, notification):
event = TelepatObjectUpdateEvent(updated_object, notification)
QtWidgets.QApplication.postEvent(self.model, event)
def unsubscribe(self):
def on_unsubscribe_success():
pass
def on_unsubscribe_failure(err_code, err_message):
print("Error msg: {0}".format(err_message))
worker = UnsubscribeWorker(self, self.channel)
worker.success.connect(on_unsubscribe_success)
worker.failed.connect(on_unsubscribe_failure)
worker.log.connect(console.log)
worker.start()