I am looking for a way to retrieve an item inside a rule identified by its name. The reason I am doing this is to create scenes, based on groups and the content of the scene is configured by items exposed in basicUI. So I can modify the scene in basicUI.
For example a TV scene would be defined like this
Color lR_HueGo_Color
Color lR_HueGo_Color_sceneTV (sceneTV)
Color lR_HueGo_Color_sceneDinner (sceneDinner)
So I am iterating over the sceneTV Group and I would like to send the value defined in item lR_HueGo_Color_sceneTV to the item lR_HueGo_Color. Getting the name of the target item is easy, but retrieving the real ColorItem is my problem.
This is perfectly do-able. You can do this with the .name attribute.
Below you can find an example that is triggered by a group (gRaamcontact). I want to know what item in that group actually triggered that rule. I do that by using the .name attribute (more specifically: gRamen.allMembers.filter[sw|sw.name).
Here’s an example:
rule "Raamcontacten consolideren"
when
Item gRaamcontact received update
then
var LastWindowContact = gRaamcontact.members.sortBy[lastUpdate].last
var Window = gRamen.allMembers.filter[sw|sw.name.contains(LastWindowContact.name.substring(14, 17))].head
var RelatedWindowContact = gRaamcontact.allMembers.filter[sw|sw.name.contains(LastWindowContact.name.substring(14, 17) + "_2")].head
if((LastWindowContact.name.substring(18, 19)) == "1") {
// I'm doing stuff here.
logInfo("Example","The name of my item is: " + LastWindowContact.name.toString)
}
if((LastWindowContact.name.substring(18, 19)) == "2") {
// I'm doing other stuff here.
logInfo("Example","The name of my item is: " + LastWindowContact.name.toString)
}
end
So to make things work… I would need to add lR_HueGo_Color to a group. I just hoped for a more generic way like… ItemService.getItem("lR_HueGo_Color") …
Btw. what is the difference between member and allMembers? Will allMembers also respect members from subGroups??
thanks for all your efforts. I will try to make my idea a bit clearer. The main target is to create scene without programming. I will just create VirtualItems for my Lights for example and add the theme to “scene”-Group. By selecting a central SceneSelector, all the items in the SceneGroup will be set to the configured values.
Here are some more details…
I want to derive the name of an item from a group and then retrieve the item itself. The idea is:
Group gOptionsScenes "Scenes" (gOptions)
Group sceneTV (gOptionsScenes)
Color lR_HueGo_Color
Color lR_HueGo_Color_sceneTV (sceneTV)
Color lR_HueGo_Color_sceneDinner (sceneDinner)
lR_HueGo_Color is the linked channel to on of my HUEs. lR_HueGo_Color_sceneTV and lR_HueGo_Color_sceneDinner are virtual items holding a color configuration. These virtual items are also exposed by BasicUI. So I can access the value of these items by the UI and configure the scene the way I like without too much coding. . I got a switch inside my sitemap (and the corresponding item inside the .items file) looking like this:
Selection item=lR_Scene_Selector mappings=["--select--"="--select--","sceneTV"="TV", "sceneDinner"="Dinner"]
Group item=gOptionsScenes
I´ve started working on a rule:
rule "Select LR Scene"
when
Item lR_Scene_Selector received command
then
logInfo("SceneRule", "Selected scene name: " + lR_Scene_Selector.state)
gOptionsScenes.allMembers.filter [ scene |
scene.name.contains(lR_Scene_Selector.state.toString)
].forEach[ sceneMember |
logInfo("SceneRule", "SceneMember: {}", scene.name)
// lR_HueGo_Color.sendCommand(sceneMember.state) if the sceneMember is lR_HueGo_Color_sceneTV for example
]
end
So the magic block is my missing part. I can retrieve the lR_HueGo_Color_tvScene object according for the TV scene. But I cannot resolve the lR_HueGo_Color without hardcoding.
So my approach now would be to add all possible Scene Members to a group and use the all members function. I just looked for a way to get around and just retrieve the Items in a more generic way. Maybe there’s already a group containing all items by default??
I don’t see your “lR_Scene_Selector” in your .items file. Not sure what type it is (string?). I would maybe use “received update” instead of “received command” in your trigger, since it is a virtual item.
I’m assuming “lR_Scene_Selector.state” contains the exact name of the item that holds your color information (e.g. “lR_HueGo_Color_sceneTV”).
Maybe this works (I haven’t tested it)
rule "Select LR Scene"
when
Item lR_Scene_Selector received update
then
var ItemName = lR_Scene_Selector.state.toString
var ItemValue = ItemName.state.toString
sendCommand(ItemName, ItemValue)
end
If not, I recommend processing the thread I mentioned above…
Improved my rule and now its actually fulfilling my current needs…
rule "Select LR Scene"
when
Item lR_Scene_Selector received update
then
logInfo("SceneRule", "Selected scene name: " + lR_Scene_Selector.state)
var sceneName = lR_Scene_Selector.state.toString
gOptionsScenes.allMembers.filter [ scene |
scene.name.contains(sceneName)
].forEach[ sceneMember |
val sceneTarget = sceneMember.name.replace("_" + sceneName, "")
var value = "NULL"
switch (sceneMember.state) {
DecimalType: value = String.valueOf(sceneMember.state)
OnOffType: value = if (sceneMember.state==OnOffType.ON) "ON" else "OFF"
PlayPauseType: value = if (sceneMember.state==PlayPauseType.PLAY) "PLAY" else "PAUSE"
UnDefType: value = "NULL"
Default: value = sceneMember.state
}
if (value!="NULL") {
logInfo("SceneRule", "SceneConfigItem: {} SceneTargetItem: {} SceneConfigState: {}", sceneMember.name, sceneTarget, value)
sendCommand(sceneTarget, value)
} else {
logInfo("SceneRule", "SceneConfigItem: {} is not configured", sceneMember)
}
]
end
and your assumption was right… lR_Scene_Selector is of type string and receives the exact scene name. e.g. “sceneTV”
. I got a switch inside my sitemap (and the corresponding item inside the .items file) looking like this: