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class ConnectorObject(object):
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"""Users, devices and streams are all built upon the base `ConnectorObject`.
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The methods from ConnectorObject can be accessed from any user, device or stream.
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Do not use this object directly. The API is accessed using the ConnectorDB class (below).
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"""
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def __init__(self, database_connection, object_path):
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self.db = database_connection
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self.path = object_path
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# Metadata represents the object's json representation
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self.metadata = None
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def refresh(self):
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"""Refresh reloads data from the server. It raises an error if it fails to get the object's metadata"""
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self.metadata = self.db.read(self.path).json()
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@property
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def data(self):
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"""Returns the raw dict representing metadata"""
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if self.metadata is None:
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self.refresh()
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return self.metadata
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def delete(self):
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"""Deletes the user/device/stream"""
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self.db.delete(self.path)
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def exists(self):
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"""returns true if the object exists, and false otherwise. This is useful for creating streams
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if they exist::
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cdb = connectordb.ConnectorDB("myapikey")
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mystream = cdb["mystream"]
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if not mystream.exists():
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mystream.create({"type":"string"})
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"""
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try:
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self.refresh()
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except:
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return False
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return True
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def set(self, property_dict):
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"""Attempts to set the given properties of the object.
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An example of this is setting the nickname of the object::
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cdb.set({"nickname": "My new nickname"})
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note that there is a convenience property `cdb.nickname` that allows you to get/set the nickname directly.
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"""
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self.metadata = self.db.update(self.path, property_dict).json()
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@property
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def name(self):
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"""Returns the object's name. Object names are immutable (unless logged in is a database admin)"""
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return self.data["name"]
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@property
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def nickname(self):
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"""Allows to directly set the object's user-friendly nickname.
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Usage is as a property::
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cdb.nickname = "My Nickname!"
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print cdb.nickname
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"""
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if "nickname" in self.data:
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return self.data["nickname"]
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return None
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@nickname.setter
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def nickname(self, new_nickname):
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"""Sets the object's user-friendly nickname"""
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self.set({"nickname": new_nickname})
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@property
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def description(self):
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"""Allows to directly set the object's description. Use as a property"""
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if "description" in self.data:
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return self.data["description"]
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return None
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@description.setter
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def description(self,new_description):
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"""Sets the object's description"""
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self.set({"description": new_description})
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