I'm building a graphical model in QGIS 3.4 to check if a point feature with a specific value in the
A field is within a polygon with the same value in
The image displays the draft of the model. I set two vector layers as input (point layer and polygon layer), then I added the algorithm "Join attributes by location". After I tried to use "Select by attribute" to compare the attribute values between two fields and I continued adding "Extract selected feature" algorithm.
I found this post that uses actions but I prefer Graphical Modeler.