Accessing input layer properties from QGIS Modeler?

Question

So I start my model by dragging an input layer, which in my case it happens to be a vector layer. Let's call it inputVectorLayer. Later on in the model I want to refactor this layer using the Refactor fields algorithm. For each feature I write the correct expression, but for one feature I need an expression that should include something like this:

layer_property('inputVectorLayer', 'name')

The problem is that it doesn't recognize the name that I gave to the representation of the input layer in the Model Builder. How can I achieve this?

If I do something like this:

layer_property('actualLayerNameAsItShowsInTheLayesPanel','name')

it works, but obviously, this name changes. That's the whole point of the module, to use aliases to reference input layers. I already tried to use double quotes to no avail layer_property("inputVectorLayer", 'name')

Answer 1

It might be too late but I just faced the problem today... You can do it with the layer_id:

 layer_property(@layer_id, 'name')

Answer 2

Here is a possible solution: Using input parameter as part of SQL query in QGIS model

Currently, the layer_property function doesn't work with and input like "vectorial layer", but it works with the "vectorial objects" input. As all the other inputs work equally with this input, attributes from layer for example, if you just change the input you can get the layer properties with that function.

I hope it helps.