FIX: RecursionError when loop flow
This commit is contained in:
士本
parent
9c3def9884
commit
129b9b07c7
|
|
@ -0,0 +1,73 @@
|
|||
from async_flow import *
|
||||
from pocketflow import Flow, AsyncParallelBatchNode, Node
|
||||
|
||||
# Create node instances
|
||||
validate_payment = ValidatePayment()
|
||||
process_payment = ProcessPayment()
|
||||
payment_confirmation = PaymentConfirmation()
|
||||
|
||||
check_stock = CheckStock()
|
||||
reserve_items = ReserveItems()
|
||||
update_inventory = UpdateInventory()
|
||||
|
||||
create_label = CreateLabel()
|
||||
assign_carrier = AssignCarrier()
|
||||
schedule_pickup = SchedulePickup()
|
||||
|
||||
# Payment processing sub-flow
|
||||
validate_payment >> process_payment
|
||||
validate_payment - "out_of_stock" >> validate_payment # 循环重试
|
||||
process_payment - 'something fail' >> validate_payment
|
||||
process_payment - 'pass' >> payment_confirmation
|
||||
payment_flow = AsyncFlow(start=validate_payment)
|
||||
|
||||
# Inventory sub-flow
|
||||
check_stock >> reserve_items >> update_inventory
|
||||
inventory_flow = AsyncFlow(start=check_stock)
|
||||
|
||||
# Shipping sub-flow
|
||||
create_label >> assign_carrier >> schedule_pickup
|
||||
shipping_flow = AsyncFlow(start=create_label)
|
||||
|
||||
# Connect the flows into a main order pipeline
|
||||
payment_flow >> inventory_flow >> shipping_flow
|
||||
# payment_flow >> inventory_flow >> create_label
|
||||
# payment_flow >> inventory_flow >> assign_carrier
|
||||
|
||||
|
||||
# Create the master flow
|
||||
class OrderFlow(AsyncFlow):
|
||||
pass
|
||||
|
||||
order_pipeline = OrderFlow(start=payment_flow)
|
||||
|
||||
# Create shared data structure
|
||||
shared_data = {
|
||||
"order_id": "ORD-12345",
|
||||
"customer": "John Doe",
|
||||
"items": [
|
||||
{"id": "ITEM-001", "name": "Smartphone", "price": 999.99, "quantity": 1},
|
||||
{"id": "ITEM-002", "name": "Phone case", "price": 29.99, "quantity": 1},
|
||||
],
|
||||
"shipping_address": {
|
||||
"street": "123 Main St",
|
||||
"city": "Anytown",
|
||||
"state": "CA",
|
||||
"zip": "12345",
|
||||
},
|
||||
}
|
||||
|
||||
|
||||
# Run the entire pipeline asynchronously
|
||||
async def main():
|
||||
await order_pipeline.run_async(shared_data)
|
||||
|
||||
# Print final status
|
||||
print("\nOrder processing completed!")
|
||||
print(f"Payment: {shared_data.get('payment_confirmation')}")
|
||||
print(f"Inventory: {shared_data.get('inventory_update')}")
|
||||
print(f"Shipping: {shared_data.get('pickup_status')}")
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
asyncio.run(main())
|
||||
|
|
@ -77,6 +77,7 @@ def flow_to_json(start):
|
|||
node_types = {}
|
||||
flow_nodes = {} # Keep track of flow nodes
|
||||
ctr = 1
|
||||
visited = set()
|
||||
|
||||
def get_id(n):
|
||||
nonlocal ctr
|
||||
|
|
@ -99,6 +100,9 @@ def flow_to_json(start):
|
|||
action: Action label on the edge from parent to this node
|
||||
"""
|
||||
node_id = get_id(node)
|
||||
if (node_id, action) in visited:
|
||||
return
|
||||
visited.add((node_id, action))
|
||||
|
||||
# Add node if not already in nodes list and not a Flow
|
||||
if not any(n["id"] == node_id for n in nodes) and not isinstance(node, Flow):
|
||||
|
|
@ -552,8 +556,38 @@ def create_d3_visualization(
|
|||
|
||||
// Update positions on each tick
|
||||
simulation.on("tick", () => {
|
||||
// Update links with straight lines
|
||||
// Update links with curved paths for bidirectional connections
|
||||
link.attr("d", d => {
|
||||
// Handle self-referencing links with a water-drop shape
|
||||
if (d.source === d.target) {
|
||||
const nodeX = d.source.x;
|
||||
const nodeY = d.source.y;
|
||||
const offsetX = 40;
|
||||
const offsetY = 10;
|
||||
const controlOffset = 50;
|
||||
|
||||
// Create a water-drop shaped path
|
||||
return `M ${nodeX},${nodeY - 5}
|
||||
C ${nodeX + controlOffset},${nodeY - 30}
|
||||
${nodeX + offsetX},${nodeY + offsetY}
|
||||
${nodeX},${nodeY}`;
|
||||
}
|
||||
|
||||
// Check if there's a reverse connection
|
||||
const isReverse = data.links.some(l =>
|
||||
l.source === d.target && l.target === d.source
|
||||
);
|
||||
|
||||
// If it's part of a bidirectional connection, curve the path
|
||||
if (isReverse) {
|
||||
const dx = d.target.x - d.source.x;
|
||||
const dy = d.target.y - d.source.y;
|
||||
const dr = Math.sqrt(dx * dx + dy * dy) * 0.9;
|
||||
|
||||
return `M${d.source.x},${d.source.y}A${dr},${dr} 0 0,1 ${d.target.x},${d.target.y}`;
|
||||
}
|
||||
|
||||
// For unidirectional connections, use straight lines
|
||||
return `M${d.source.x},${d.source.y} L${d.target.x},${d.target.y}`;
|
||||
});
|
||||
|
||||
|
|
@ -567,10 +601,57 @@ def create_d3_visualization(
|
|||
.attr("x", d => d.x)
|
||||
.attr("y", d => d.y);
|
||||
|
||||
// Position link labels at midpoint
|
||||
linkLabel
|
||||
.attr("x", d => (d.source.x + d.target.x) / 2)
|
||||
.attr("y", d => (d.source.y + d.target.y) / 2);
|
||||
// Position link labels with offset for bidirectional connections
|
||||
linkLabel.attr("x", d => {
|
||||
// Handle self-referencing links
|
||||
if (d.source === d.target) {
|
||||
return d.source.x + 30;
|
||||
}
|
||||
|
||||
// Check if there's a reverse connection
|
||||
const reverseLink = data.links.find(l =>
|
||||
l.source === d.target && l.target === d.source
|
||||
);
|
||||
|
||||
// If it's part of a bidirectional connection, offset the label
|
||||
if (reverseLink) {
|
||||
const dx = d.target.x - d.source.x;
|
||||
const dy = d.target.y - d.source.y;
|
||||
// Calculate perpendicular offset
|
||||
const length = Math.sqrt(dx * dx + dy * dy);
|
||||
const offsetX = -dy / length * 10; // Perpendicular offset
|
||||
|
||||
return (d.source.x + d.target.x) / 2 + offsetX;
|
||||
}
|
||||
|
||||
// For unidirectional connections, use midpoint
|
||||
return (d.source.x + d.target.x) / 2;
|
||||
})
|
||||
.attr("y", d => {
|
||||
// Handle self-referencing links
|
||||
if (d.source === d.target) {
|
||||
return d.source.y;
|
||||
}
|
||||
|
||||
// Check if there's a reverse connection
|
||||
const reverseLink = data.links.find(l =>
|
||||
l.source === d.target && l.target === d.source
|
||||
);
|
||||
|
||||
// If it's part of a bidirectional connection, offset the label
|
||||
if (reverseLink) {
|
||||
const dx = d.target.x - d.source.x;
|
||||
const dy = d.target.y - d.source.y;
|
||||
// Calculate perpendicular offset
|
||||
const length = Math.sqrt(dx * dx + dy * dy);
|
||||
const offsetY = dx / length * 10; // Perpendicular offset
|
||||
|
||||
return (d.source.y + d.target.y) / 2 + offsetY;
|
||||
}
|
||||
|
||||
// For unidirectional connections, use midpoint
|
||||
return (d.source.y + d.target.y) / 2;
|
||||
});
|
||||
|
||||
// Update group containers
|
||||
groupContainers.each(function(d) {
|
||||
|
|
@ -893,7 +974,7 @@ if __name__ == "__main__":
|
|||
|
||||
parser = argparse.ArgumentParser(description="Visualize a PocketFlow flow")
|
||||
parser.add_argument(
|
||||
"--module", default="async_flow", help="Module containing the flow"
|
||||
"--module", default="async_loop_flow", help="Module containing the flow"
|
||||
)
|
||||
parser.add_argument(
|
||||
"--flow", default="order_pipeline", help="Flow variable name in the module"
|
||||
|
|
|
|||
Loading…
Reference in New Issue