SVGHMI: JsonTable now use intermediate variables again to address JSON data without duplicating code or referencing. Using intermediate variables also alows to check for availability of data and stop evaluating early if data is missing. Finally added complete roundtrip example to illustrate use of JSonTable to display "alarms" collected in python from changes on PLC boolean variables.
include yslt_noindent.yml2
istylesheet xmlns:ppx="http://www.plcopen.org/xml/tc6_0201"
xmlns:xhtml="http://www.w3.org/1999/xhtml"
xmlns:ns="beremiz"
extension-element-prefixes="ns"
exclude-result-prefixes="ns" {
param "instance_type";
template "text()";
variable "project", "ns:GetProject()";
variable "stdlib", "ns:GetStdLibs()";
variable "extensions", "ns:GetExtensions()";
variable "all_types", "($project | $stdlib | $extensions)/ppx:types";
template "ppx:project" {
apply "ppx:instances/ppx:configurations/ppx:configuration";
}
template "ppx:configuration" {
apply "ppx:globalVars/ppx:variable[ppx:type/ppx:derived] | ppx:resource" {
with "parent_path" > «@name»
}
}
template "ppx:resource" {
param "parent_path";
variable "resource_path" > «$parent_path».«@name»
apply "ppx:globalVars/ppx:variable[ppx:type/ppx:derived] | ppx:pouInstance | ppx:task/ppx:pouInstance" {
with "parent_path" > «$resource_path»
}
}
template "ppx:pouInstance" {
param "parent_path";
variable "pou_instance_path" > «$parent_path».«@name»
choose {
when "@typeName=$instance_type" {
value "ns:AddInstance($pou_instance_path)";
}
otherwise {
variable "type_name" > «@typeName»
apply """$all_types/ppx:pous/ppx:pou[@name=$type_name] | \
$all_types/ppx:dataTypes/ppx:dataType[@name=$type_name]""" {
with "instance_path" > «$pou_instance_path»
}
}
}
}
template "ppx:pou" {
param "instance_path";
apply "ppx:interface/*/ppx:variable[ppx:type/ppx:derived]" {
with "parent_path" > «$instance_path»
}
}
template "ppx:dataType" {
param "instance_path","concat('#',@name)";
apply "ppx:baseType/*[self::ppx:derived or self::ppx:struct or self::ppx:array]" {
with "variable_path" > «$instance_path»
}
}
template "ppx:variable" {
param "parent_path";
variable "variable_path" > «$parent_path».«@name»
apply "ppx:type/ppx:derived" {
with "variable_path" > «$variable_path»
}
}
template "ppx:derived" {
param "variable_path";
choose {
when "@name=$instance_type" {
value "ns:AddInstance($variable_path)";
}
otherwise {
variable "type_name" > «@name»
apply """$all_types/ppx:pous/ppx:pou[@name=$type_name] | \
$all_types/ppx:dataTypes/ppx:dataType[@name=$type_name]""" {
with "instance_path" > «$variable_path»
}
}
}
}
template "ppx:struct" {
param "variable_path";
foreach "ppx:variable[ppx:type/ppx:derived or ppx:type/ppx:struct or ppx:type/ppx:array]" {
variable "element_path" > «$variable_path».«@name»
apply "ppx:type/*[self::ppx:derived or self::ppx:struct or self::ppx:array]" {
with "variable_path" > «$element_path»
}
}
}
template "ppx:array" {
param "variable_path";
apply "ppx:baseType/*[self::ppx:derived or self::ppx:struct or self::ppx:array]" {
with "variable_path" > «$variable_path»
}
}
}