I’m trying to pull out the area of an entity in a flow. For example I’ve an entity with the id of binary_sensor.bathroom_occupancy. I’d like to be able to just pull out the bathroom referenced here.
After I’ve got the bathroom set as the topic/variable I then plan to use this to turn on the light group associated with the room. Thanks.
This is vague, providing your flow and how you are trying to use the variable would get a better response.
Here’s a simple example of the flow. Rather than have this same flow for five different rooms (areas). I’m trying to strip out the area value from the entity name to then turn on the appropriate light in that area.
[
{
"id": "7e8c20b971e9be1e",
"type": "tab",
"label": "Flow 3",
"disabled": false,
"info": "",
"env": []
},
{
"id": "e2d1d51e1d85446d",
"type": "server-state-changed",
"z": "7e8c20b971e9be1e",
"name": "Bathroom Motion",
"server": "2244d24e336a3d2c",
"version": 4,
"exposeToHomeAssistant": false,
"haConfig": [
{
"property": "name",
"value": ""
},
{
"property": "icon",
"value": ""
}
],
"entityidfilter": "binary_sensor.bathroom_occupancy",
"entityidfiltertype": "exact",
"outputinitially": false,
"state_type": "str",
"haltifstate": "on",
"halt_if_type": "str",
"halt_if_compare": "is",
"outputs": 2,
"output_only_on_state_change": true,
"for": 0,
"forType": "num",
"forUnits": "minutes",
"ignorePrevStateNull": false,
"ignorePrevStateUnknown": false,
"ignorePrevStateUnavailable": false,
"ignoreCurrentStateUnknown": false,
"ignoreCurrentStateUnavailable": false,
"outputProperties": [
{
"property": "payload",
"propertyType": "msg",
"value": "",
"valueType": "entityState"
},
{
"property": "data",
"propertyType": "msg",
"value": "",
"valueType": "eventData"
},
{
"property": "topic",
"propertyType": "msg",
"value": "",
"valueType": "triggerId"
}
],
"x": 460,
"y": 280,
"wires": [
[
"529b17eb6a6e860d"
],
[
"c2bf93062e4d1c77"
]
]
},
{
"id": "c2bf93062e4d1c77",
"type": "api-call-service",
"z": "7e8c20b971e9be1e",
"name": "Lights Off",
"server": "2244d24e336a3d2c",
"version": 5,
"debugenabled": true,
"domain": "light",
"service": "turn_off",
"areaId": [],
"deviceId": [],
"entityId": [
"light.bathroom"
],
"data": "",
"dataType": "jsonata",
"mergeContext": "",
"mustacheAltTags": false,
"outputProperties": [],
"queue": "none",
"x": 940,
"y": 280,
"wires": [
[]
]
},
{
"id": "529b17eb6a6e860d",
"type": "api-call-service",
"z": "7e8c20b971e9be1e",
"name": "Lights On",
"server": "2244d24e336a3d2c",
"version": 5,
"debugenabled": true,
"domain": "light",
"service": "turn_on",
"areaId": [],
"deviceId": [],
"entityId": [
"light.bathroom"
],
"data": "",
"dataType": "jsonata",
"mergeContext": "",
"mustacheAltTags": false,
"outputProperties": [],
"queue": "none",
"x": 940,
"y": 200,
"wires": [
[]
]
},
{
"id": "2244d24e336a3d2c",
"type": "server",
"name": "Home Assistant",
"version": 2,
"addon": false,
"rejectUnauthorizedCerts": true,
"ha_boolean": "y|yes|true|on|home|open",
"connectionDelay": true,
"cacheJson": true,
"heartbeat": false,
"heartbeatInterval": 30
}
]
It still doesn’t show how you intend to use the area_id. It’s not a simple attribute in NR. Look at these 2 threads for how to get the area_id
^\w+\.(\w+)_.*$
[{"id":"0aa7cffd44e087bf","type":"change","z":"91a80f99.6180e","name":"","rules":[{"t":"change","p":"payload","pt":"msg","from":"^[\\w_]+\\.(\\w+)_.*$","fromt":"re","to":"$1","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":500,"y":768,"wires":[["3420b73640116b19"]]},{"id":"5dcb9ebd255563da","type":"inject","z":"91a80f99.6180e","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"binary_sensor.bathroom_occupancy","payloadType":"str","x":318,"y":768,"wires":[["0aa7cffd44e087bf"]]},{"id":"3420b73640116b19","type":"debug","z":"91a80f99.6180e","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","statusVal":"","statusType":"auto","x":710,"y":768,"wires":[]}]
Thanks @Kermit, that looks like what I’m trying to do. Now I just need to work out how to configure the call service node to turn on light.bathroom.
Flow:
[
{
"id": "830c05fefca1c62f",
"type": "tab",
"label": "Flow 1",
"disabled": false,
"info": "",
"env": []
},
{
"id": "f0d54f9b5439283b",
"type": "inject",
"z": "830c05fefca1c62f",
"name": "",
"props": [
{
"p": "payload"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"topic": "",
"payload": "",
"payloadType": "date",
"x": 240,
"y": 240,
"wires": [
[
"c90b780f6aa00fc4"
]
]
},
{
"id": "c90b780f6aa00fc4",
"type": "api-current-state",
"z": "830c05fefca1c62f",
"name": "",
"server": "2244d24e336a3d2c",
"version": 3,
"outputs": 1,
"halt_if": "",
"halt_if_type": "str",
"halt_if_compare": "is",
"entity_id": "binary_sensor.bathroom_occupancy",
"state_type": "str",
"blockInputOverrides": false,
"outputProperties": [
{
"property": "payload",
"propertyType": "msg",
"value": "",
"valueType": "triggerId"
},
{
"property": "data",
"propertyType": "msg",
"value": "",
"valueType": "entity"
},
{
"property": "data",
"propertyType": "msg",
"value": "",
"valueType": "entityState"
}
],
"for": "0",
"forType": "num",
"forUnits": "minutes",
"override_topic": false,
"state_location": "payload",
"override_payload": "msg",
"entity_location": "data",
"override_data": "msg",
"x": 510,
"y": 240,
"wires": [
[
"093b702a9210a7c2"
]
]
},
{
"id": "093b702a9210a7c2",
"type": "change",
"z": "830c05fefca1c62f",
"name": "",
"rules": [
{
"t": "change",
"p": "payload",
"pt": "msg",
"from": "^[\\w_]+\\.(\\w+)_.*$",
"fromt": "re",
"to": "light.$1",
"tot": "str"
}
],
"action": "",
"property": "",
"from": "",
"to": "",
"reg": false,
"x": 840,
"y": 320,
"wires": [
[
"e6ddcb2e56e2c09f"
]
]
},
{
"id": "e6ddcb2e56e2c09f",
"type": "api-call-service",
"z": "830c05fefca1c62f",
"name": "",
"server": "",
"version": 5,
"debugenabled": false,
"domain": "",
"service": "",
"areaId": [],
"deviceId": [],
"entityId": [],
"data": "",
"dataType": "jsonata",
"mergeContext": "",
"mustacheAltTags": false,
"outputProperties": [],
"queue": "none",
"x": 1070,
"y": 320,
"wires": [
[]
]
},
{
"id": "2244d24e336a3d2c",
"type": "server",
"name": "Home Assistant",
"version": 2,
"addon": false,
"rejectUnauthorizedCerts": true,
"ha_boolean": "y|yes|true|on|home|open",
"connectionDelay": true,
"cacheJson": true,
"heartbeat": false,
"heartbeatInterval": 30
}
]
Found the answer. I can use {{payload}} as the entity. Awesome. Thanks!
@Kermit this is working perfectly, thanks again. Now I’m wondering how i can achieve the same result without using the change node. Instead applying the regex search as part of a JSONata expression within the current state node.
[
{
"id": "e9ac906fde06ca7e",
"type": "inject",
"z": "92f311dc4ccbcf60",
"name": "",
"props": [
{
"p": "payload"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"topic": "",
"payload": "",
"payloadType": "date",
"x": 220,
"y": 2020,
"wires": [
[
"05cfb0bb4a03329b"
]
]
},
{
"id": "05cfb0bb4a03329b",
"type": "api-current-state",
"z": "92f311dc4ccbcf60",
"name": "",
"server": "2244d24e336a3d2c",
"version": 3,
"outputs": 1,
"halt_if": "",
"halt_if_type": "str",
"halt_if_compare": "is",
"entity_id": "binary_sensor.bathroom_occupancy",
"state_type": "str",
"blockInputOverrides": false,
"outputProperties": [
{
"property": "payload",
"propertyType": "msg",
"value": "",
"valueType": "entityState"
},
{
"property": "data",
"propertyType": "msg",
"value": "",
"valueType": "entity"
},
{
"property": "topic",
"propertyType": "msg",
"value": "",
"valueType": "triggerId"
},
{
"property": "area",
"propertyType": "msg",
"value": "",
"valueType": "jsonata"
}
],
"for": "0",
"forType": "num",
"forUnits": "minutes",
"override_topic": false,
"state_location": "payload",
"override_payload": "msg",
"entity_location": "data",
"override_data": "msg",
"x": 510,
"y": 2020,
"wires": [
[
"e8455e8d022d6cf0",
"e2f6c8a3bfbb0232"
]
]
},
{
"id": "058dfb0e82cefc9e",
"type": "debug",
"z": "92f311dc4ccbcf60",
"name": "",
"active": true,
"tosidebar": true,
"console": false,
"tostatus": false,
"complete": "topic",
"targetType": "msg",
"statusVal": "",
"statusType": "auto",
"x": 980,
"y": 2000,
"wires": []
},
{
"id": "e8455e8d022d6cf0",
"type": "debug",
"z": "92f311dc4ccbcf60",
"name": "",
"active": true,
"tosidebar": true,
"console": false,
"tostatus": false,
"complete": "area",
"targetType": "msg",
"statusVal": "",
"statusType": "auto",
"x": 900,
"y": 2060,
"wires": []
},
{
"id": "e2f6c8a3bfbb0232",
"type": "change",
"z": "92f311dc4ccbcf60",
"name": "Area",
"rules": [
{
"t": "change",
"p": "topic",
"pt": "msg",
"from": "^[\\w_]+\\.(\\w+)_.*$",
"fromt": "re",
"to": "$1",
"tot": "str"
}
],
"action": "",
"property": "",
"from": "",
"to": "",
"reg": false,
"x": 810,
"y": 2000,
"wires": [
[
"058dfb0e82cefc9e"
]
]
},
{
"id": "2244d24e336a3d2c",
"type": "server",
"name": "Home Assistant",
"version": 2,
"addon": false,
"rejectUnauthorizedCerts": true,
"ha_boolean": "y|yes|true|on|home|open",
"connectionDelay": true,
"cacheJson": true,
"heartbeat": false,
"heartbeatInterval": 30
}
]
Found the solution with help in the node red forum.
{
"area":$match(data.entity_id,/^[\w_]+\.(\w+)_.*$/).groups[0]
}