def handle_post_base_sequence(client_state,
username, action_type, action_target_id):
'''
Function expects a client state, a string username, a string
action type, and a string action_target_id.
Function shall return True if action type and
action_target_id are valid or function shall return
False.
'''
# Check which option the user selected
if action_type == "BUTTONCLICK":
if action_target_id == "SEQUENCER":
# Switch states to the last Select Sequence screen
direct_to_last_select_screen(client_state)
return True
elif action_target_id == "PREVIOUS":
# Move to the previous component
previous_component = db.get_previous_component(
client_state["componentid"])
if previous_component != None:
client_state["componentid"] = previous_component["id"]
return True
elif action_target_id == "NEXT":
# Move to the next component
next_component = db.get_next_component(
client_state["componentid"])
if next_component != None:
client_state["componentid"] = next_component["id"]
return True
else:
# Check if the target ID corresponds to
# one of our sequence components
try:
# Cast the action target ID to an integer
# and fetch the corresponding component
action_target_id = int(action_target_id)
component = db.get_component(action_target_id)
# Make sure the sequence IDs match
if component["sequenceid"] != client_state["sequenceid"]:
return False
# Move to the component
client_state["componentid"] = component["id"]
return True
except ValueError:
# Action target ID is not an integer
pass
except Exception("Component Not Found Exception"):
# Interger does not correspond to a component ID
pass
# Tell the caller we didn't handle it
return False
def delete_index(s_id, c_id):
'''
Function handles a DELETE request from a web request
in the form of:
DELETE /Elixys/sequence/<sequenceid>/component/<componentid>
Function expects two parameters, both integers, that are passed
in from the web request.
Function will delete the given sequence's component by it's id
on the database. Function shall also update the client state
by moving to the previous component on the "Edit Sequence"
screen on the client.
Function shall return the output of GET /Elixys/state.
(See elixys_web_get.py)
'''
auth = request.authorization
username = str(auth.username)
client_state = getCurrentClientState(username)
current_app.logger.debug("Handling request: " + str(request))
# Make sure we can edit this sequence
sequence_metadata = db.GetSequenceMetadata(username, int(s_id))
if sequence_metadata["sequencetype"] != "Saved":
raise Exception("Cannot edit sequence")
# Is the user currently viewing this component?
if ((client_state["sequenceid"] == int(s_id))
and (client_state["componentid"] == int(c_id))):
# Yes, so move the user to the previous component in the sequence
previous_component = db.get_previous_component(int(c_id))
if previous_component == None:
raise Exception("Failed to find previous component")
# Update the client state
client_state["componentid"] = previous_component["id"]
db.update_user_client_state(username, client_state)
# Delete the sequence component
sequence_manager.DeleteComponent(username, int(s_id), int(c_id))
# Return the state
current_app.logger.debug("Calling GET /state")
get_state = Elixys_Get_State()
return get_state.state_index()
def delete_index(s_id, c_id):
'''
Function handles a DELETE request from a web request
in the form of:
DELETE /Elixys/sequence/<sequenceid>/component/<componentid>
Function expects two parameters, both integers, that are passed
in from the web request.
Function will delete the given sequence's component by it's id
on the database. Function shall also update the client state
by moving to the previous component on the "Edit Sequence"
screen on the client.
Function shall return the output of GET /Elixys/state.
(See elixys_web_get.py)
'''
auth = request.authorization
username = str(auth.username)
client_state = getCurrentClientState(username)
current_app.logger.debug("Handling request: " + str(request))
# Make sure we can edit this sequence
sequence_metadata = db.GetSequenceMetadata(username, int(s_id))
if sequence_metadata["sequencetype"] != "Saved":
raise Exception("Cannot edit sequence")
# Is the user currently viewing this component?
if ((client_state["sequenceid"] == int(s_id))
and (client_state["componentid"] == int(c_id))):
# Yes, so move the user to the previous component in the sequence
previous_component = db.get_previous_component(int(c_id))
if previous_component == None:
raise Exception("Failed to find previous component")
# Update the client state
client_state["componentid"] = previous_component["id"]
db.update_user_client_state(username, client_state)
# Delete the sequence component
sequence_manager.DeleteComponent(username, int(s_id), int(c_id))
# Return the state
current_app.logger.debug("Calling GET /state")
get_state = Elixys_Get_State()
return get_state.state_index()
