Good Day Wise Oracles!
I am playing with a subflow, mainly to learn, and have come up with something that has me a bit stumped...
The example I am using is a "Math Thingy" ... it is very basic, simply define the 2 topics and how you want to handle them, add, subtract, multiply or divide...
Now here's what has me a bit clueless: If I select "Add" under the setup of the "node", I would like to prefix the name of the node with the text "Add:", automatically... ie if I name the node "Whatever", and I have selected the function Add, I would like the name of the node to reflect "Add: Whatever"
Here is the basic subflow with the test flow to accompany it:
[
{
"id": "29ec52db.e36e2e",
"type": "subflow",
"name": "Math Thingy",
"info": "Topic1 and Topic2 -Topics Selectable via node setup.\nFunction - Function to perform",
"category": "",
"in": [
{
"x": 80,
"y": 70,
"wires": [
{
"id": "5fb41510.349814"
}
]
}
],
"out": [
{
"x": 310,
"y": 100,
"wires": [
{
"id": "5fb41510.349814",
"port": 1
}
]
}
],
"env": [
{
"name": "Topic1",
"type": "str",
"value": "A"
},
{
"name": "Func",
"type": "str",
"value": "*",
"ui": {
"label": {
"en-US": "Function"
},
"type": "select",
"opts": {
"opts": [
{
"l": {
"en-US": "Multiply by"
},
"v": "*"
},
{
"l": {
"en-US": "Add to"
},
"v": "+"
},
{
"l": {
"en-US": "Divide by"
},
"v": "/"
},
{
"l": {
"en-US": "Minus"
},
"v": "-"
}
]
}
}
},
{
"name": "Topic2",
"type": "str",
"value": "B"
}
],
"meta": {},
"color": "#DDAA99",
"status": {
"x": 310,
"y": 50,
"wires": [
{
"id": "5fb41510.349814",
"port": 0
}
]
}
},
{
"id": "5fb41510.349814",
"type": "function",
"z": "29ec52db.e36e2e",
"name": "Math Thingy",
"func": "T1Val = context.get(\"T1Val\");\nT2Val = context.get(\"T2Val\");\nTopic1 = env.get(\"Topic1\");\nTopic2 = env.get(\"Topic2\");\nFunc = env.get(\"Func\");\n\n/*Put Something in here to modify the name of the node\nTo reflect Add/Subtract/Multiply/Divide to give:\n Divide: Name of Node\n*/\n\nif (msg.topic == Topic1){T1Val = msg.payload}\nif (msg.topic == Topic2){T2Val = msg.payload}\n\nif(isNaN(T1Val)) {T1Val = 0}\nif(isNaN(T2Val)) {T2Val = 0}\n\ncontext.set(\"T1Val\", T1Val);\ncontext.set(\"T2Val\", T2Val);\nif(Func == \"*\"){\n Res = T1Val * T2Val;\n msg.payload = Res;\n msg.topic = \"Multiply\"}\n \nif(Func == \"/\"){\n if(T2Val != 0){\n Res = T1Val / T2Val;\n msg.payload = Res;\n msg.topic = \"Divide\"}\n else{\n Res = \"Overflow\"\n msg.payload = NaN;\n msg.topic = \"Divide\"\n }\n }\n\nif(Func == \"+\"){\n Res = T1Val + T2Val;\n msg.payload = Res;\n msg.topic = \"Add\"}\n\nif(Func == \"-\"){\n Res = T1Val * T2Val;\n msg.payload = Res;\n msg.topic = \"Subtract\"}\n\nlet statusMsg = { text: Res };\nreturn [{payload:statusMsg}, msg ]\n",
"outputs": 2,
"noerr": 0,
"initialize": "",
"finalize": "",
"libs": [],
"x": 190,
"y": 70,
"wires": [
[],
[]
]
},
{
"id": "21777ffa.e110e",
"type": "tab",
"label": "Math Thingy Test",
"disabled": false,
"info": ""
},
{
"id": "bd50a195.c58e38",
"type": "subflow:29ec52db.e36e2e",
"z": "21777ffa.e110e",
"name": "Divide: Name of node",
"env": [
{
"name": "Func",
"value": "/",
"type": "str"
}
],
"x": 270,
"y": 120,
"wires": [
[
"bd77c46f.0fa28"
]
]
},
{
"id": "cba597af.1e17c",
"type": "inject",
"z": "21777ffa.e110e",
"name": "",
"props": [
{
"p": "payload"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"topic": "A",
"payload": "100",
"payloadType": "num",
"x": 90,
"y": 60,
"wires": [
[
"bd50a195.c58e38"
]
]
},
{
"id": "63aaf802.7280c8",
"type": "inject",
"z": "21777ffa.e110e",
"name": "",
"props": [
{
"p": "payload"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"topic": "B",
"payload": "2",
"payloadType": "num",
"x": 90,
"y": 140,
"wires": [
[
"bd50a195.c58e38"
]
]
},
{
"id": "bd77c46f.0fa28",
"type": "debug",
"z": "21777ffa.e110e",
"name": "",
"active": true,
"tosidebar": true,
"console": false,
"tostatus": true,
"complete": "true",
"targetType": "full",
"statusVal": "payload",
"statusType": "auto",
"x": 440,
"y": 120,
"wires": []
},
{
"id": "bf3fa5d8.ac4b78",
"type": "inject",
"z": "21777ffa.e110e",
"name": "",
"props": [
{
"p": "payload"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"topic": "B",
"payload": "3",
"payloadType": "num",
"x": 90,
"y": 180,
"wires": [
[
"bd50a195.c58e38"
]
]
},
{
"id": "cf202a26.ed8c9",
"type": "inject",
"z": "21777ffa.e110e",
"name": "",
"props": [
{
"p": "payload"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"topic": "B",
"payload": "0",
"payloadType": "num",
"x": 90,
"y": 100,
"wires": [
[
"bd50a195.c58e38"
]
]
}
]
(I hope I got the code insertion right, Apologies if I didn't!!)
Any hints would be appreciated immensely!
Tia
Ed
