Fix validator file options

bsyncviewer/forms.py

@@ -16,18 +16,24 @@ class LoadXMLFile(forms.Form):
 
 
 class LoadXMLExample(forms.Form):
-    schema_version = forms.ModelChoiceField(queryset=Schema.objects.all(),
-                                            empty_label=None,
-                                            to_field_name='version',
-                                            initial=DEFAULT_SCHEMA_VERSION)
+    schema_version = forms.ModelChoiceField(
+        queryset=Schema.objects.all(),
+        empty_label=None,
+        to_field_name='version',
+        initial=DEFAULT_SCHEMA_VERSION,
+        widget=forms.Select(attrs={'id': 'schema_dropdown'})
+    )
+
     file_name = forms.FilePathField(
         path=os.path.join(
-            os.path.abspath(os.path.dirname(__file__)), 'lib', 'validator', 'examples', 'schema' + str(DEFAULT_SCHEMA_VERSION)
+            os.path.abspath(os.path.dirname(__file__)), 'lib', 'validator', 'examples'
         ),
-        recursive=False,
+        recursive=True,
         match=r'\.xml$',
-        allow_files=True
+        allow_files=True,
+        widget=forms.Select(attrs={'id': 'file_dropdown'})
     )
+
     form_type = forms.CharField(widget=forms.HiddenInput(), initial='example')
 
 

bsyncviewer/templates/validator.html

@@ -48,3 +48,30 @@ <h3 class="panel-title">Explore Examples</h3>
   </div>
 
 {% endblock content %}
+
+{% block base_extra_script %}
+{{ schema_to_examples|json_script:"schema_to_examples" }}
+  <script>
+    /*
+    Set the file options in load_xml_example_form to the right files for the selected schema verisons.
+    Do so on page load and every change of the schema version drop down.
+    */
+    function setFileOptions(){
+      fileDropdown = document.getElementById("file_dropdown")
+      schemaToExampleScript = document.getElementById('schema_to_examples')
+      schemaToExample = JSON.parse(schemaToExampleScript.textContent)
+
+      while (fileDropdown.options.length > 0) {
+        fileDropdown.remove(0);
+      }
+
+      schemaToExample[schema_dropdown.value].forEach(([abs_path, name]) => {
+        fileDropdown.add(new Option(abs_path, name))
+      })
+    }
+
+    schemaDropdown = document.getElementById("schema_dropdown")
+    schema_dropdown.addEventListener("change", setFileOptions)
+    setFileOptions();
+  </script>
+{% endblock base_extra_script %}

bsyncviewer/views.py

@@ -1,8 +1,10 @@
 import json
 import os
+import pathlib
 import subprocess
 import tempfile
 import zipfile
+from typing import Dict, List
 
 import semantic_version
 from bsyncviewer import forms
@@ -412,10 +414,29 @@ def measures(request, version):
     return render(request, 'enumerations.html', context)
 
 
+def get_schema_to_examples() -> Dict[str, List[pathlib.Path]]:
+    """
+    Create schema examples dictionary.
+
+    Create a dictionary were the keys are the schemas versions
+    and the values are a list of example files for that schema version
+
+    :return: dict
+    """
+    validator_dir = pathlib.Path(__file__).parent / 'lib' / 'validator' / 'examples'
+
+    schema_to_examples = {}
+    for schema_dir in validator_dir.glob("*"):
+        schema_to_examples[schema_dir.name.replace("schema", "", 1)] = [(p.name, str(p)) for p in schema_dir.glob("*.xml")]
+
+    return schema_to_examples
+
+
 def validator(request):
     context = {
         'load_xml_file_form': forms.LoadXMLFile(),
         'load_xml_example_form': forms.LoadXMLExample(),
+        'schema_to_examples': get_schema_to_examples(),
         'a_var': ''
     }