Mashup. Set Properties to all things

[fmanniti]

All the mashups I've done so far were about one thing so if I wanted to set a property's value I used

Add dynamic template -->Set Property and then I could set property to each thing.

My problem, now, is that I want to set a property value to ALL things (i.e. I have a minimum temperature property and I want it to change to all things).

I don't understand how to do it

[posipova]

One thing to go around the issue would be writing a service that would update/set property to all things. Are they all sharing one template? If so, if the template also shares the property, you may write a service using "set property()" snippet and update all things from within that service. If they are not sharing the template/property, then the service might be a bit more complicate but with a similar logic.

Once the service code is defined, you'll go the same route with actually using the service from the mashup as in just having one thing to update.

[fmanniti]

Ok, I'm still learning how to write services.

All my things are under the same template and they all inherit the same properties from the template.

I tried "Add my service" and I guess I must set "NOTHING" as output. But I cannot find "set property()" in snippets. I didn't understand if it is written under another name or you meant it's a function I have to make by myself

[posipova]

You may set nothing as the output or some result to test the function before using it in the mashup. Please see below for SetPropertyValue function that is built-in in the Thing entities and "Me" (used fot the Thing Template):

[fmanniti]

I don't know if I'm writing it wrong or it doesn't work;

My properties are called TempMin and TempMax:

var props = Resources["InfoTableFunctions"].CreateInfoTable(params);
props.AddField({ name: 'TempMin', baseType: 'NUMBER' });
props.AddField({ name: 'TempMax', baseType: 'NUMBER' });
var params = {
values: props /* INFOTABLE */
};
me.SetPropertyValues(params);

[qngo]

You can find a solution here UpdatePropertyValues service​