fix(ruby): parameter placeholder

Author: TorstenDittmann

templates/ruby/lib/container/services/service.rb.twig

@@ -2,7 +2,7 @@ module {{spec.title | caseUcfirst}}
     class {{ service.name | caseUcfirst }} < Service
 
 {% for method in service.methods %}
-        def {{ method.name | caseSnake }}({% for parameter in method.parameters.all %}{{ parameter.name | caseSnake }}{% if not parameter.required %} = nil{% endif %}{% if not loop.last %}, {% endif %}{% endfor %})
+        def {{ method.name | caseSnake }}({% for parameter in method.parameters.all %}{{ parameter.name | caseSnake }}:{% if not parameter.required %} nil{% endif %}{% if not loop.last %}, {% endif %}{% endfor %})
 {% for parameter in method.parameters.all %}
 {% if parameter.required %}
             if {{ parameter.name | caseSnake }}.nil?
@@ -19,13 +19,13 @@ module {{spec.title | caseUcfirst}}
             params = {}
 
 {% for parameter in method.parameters.query %}
-            if !execute.nil?
+            if !{{ parameter.name | caseSnake }}.nil?
                 params[:{{ parameter.name }}] = {{ parameter.name | caseSnake }}
             end
 
 {% endfor %}
 {% for parameter in method.parameters.body %}
-            if !execute.nil?
+            if !{{ parameter.name | caseSnake }}.nil?
                 params[:{{ parameter.name }}] = {{ parameter.name | caseSnake }}
             end