def crowdfunding_get_members(crowdfunding_address):
storage = StorageAPI()
crowdfunding_meta_key = storage.get_crowdfunding_members_key(
crowdfunding_address)
print(crowdfunding_meta_key)
# Check if this address or crowdfunding_meta already exists
addresses = storage.get(crowdfunding_meta_key)
if len(addresses) == 0:
print("Error: address does not belong to a crowdfunding")
return False
n = len(addresses)
num_addresses = n / 20
msg = ["Crowdfunding found. Members:", num_addresses]
Notify(msg)
address_list = []
i = 0
while i < num_addresses:
addr = addresses[0:20]
addresses = addresses[20:]
address_list.append(addr)
i += 1
return address_list
def is_crowdfunding_address(crowdfunding_address):
storage = StorageAPI()
crowdfunding_meta_key = storage.get_crowdfunding_members_key(
crowdfunding_address)
addresses = storage.get(crowdfunding_meta_key)
if len(addresses) == 0:
return False
return True
def crowdfunding_create(args):
""" args:
0: crowdfunding address
1..n: member addresses
"""
print("Create a crowdfunding")
storage = StorageAPI()
crowdfunding_address = args[0]
crowdfunding_meta_key = storage.get_crowdfunding_members_key(
crowdfunding_address)
print(crowdfunding_meta_key)
# Check for minimum number of arguments
nargs = len(args)
if nargs < 3:
print(
"Error: need at least 3 arguments: (1) crowdfunding address, (2+3) member addresses"
)
return False
# Check if this address or crowdfunding_meta already exists
balance = storage.get(crowdfunding_address)
if len(balance) > 0:
print("Error: address is already in use")
return False
meta = storage.get(crowdfunding_meta_key)
if len(meta) > 0:
print("Error: crowdfunding is already setup")
return False
# Build list of addresses to store in meta key
print("Build list of addresses")
nargs = len(args)
member_addresses = args[1]
print(member_addresses)
i = 2
while i < nargs:
member_address = args[i]
print(member_address)
i += 1
member_addresses = concat(member_addresses, member_address)
storage.put(crowdfunding_meta_key, member_addresses)
print("Created the crowdfunding with those member addresses")
print(member_addresses)
