m_n create/update works UNLESS update is none

bootstrap/webapp/templates/layout.html

@@ -48,6 +48,16 @@
       font-family: Open Sans, Arial sans-serif;
       font-size: 1em;
       box-sizing: border-box;
+      min-width: 300px;
+    }
+
+    input[type=number] {
+      min-width: 70px;
+      width: 70px;
+    }
+
+    select {
+      min-width: 300px;
     }
 
     .full-width {

oshipka/webapp/views.py

@@ -1,3 +1,4 @@
+import importlib
 from functools import wraps
 
 import inflect
@@ -6,15 +7,21 @@ from flask import flash, render_template, redirect, request, url_for, jsonify
 from oshipka.persistance import db
 from oshipka.util.strings import camel_case_to_snake_case
 
+webapp_models = importlib.import_module("webapp.models")
+
 MODEL_VIEWS = dict()
 
+
 def default_get_args_func(view_context):
     view_context.serialized_args = request.args
 
 
 def default_get_form_func(vc):
     vc.redirect_next = request.form.get('_next')
-    vc.serialized_args = dict(filter(lambda k: not k[0].startswith("_"), dict(request.form).items()))
+    for k in request.form:
+        if k.startswith('_m_n_'):
+            vc.serialized_args[k] = request.form.getlist(k)
+    vc.serialized_args.update(dict(filter(lambda k: not k[0].startswith("_"), dict(request.form).items())))
     to_delete = []
     for key, value in vc.serialized_args.items():
         if key.endswith('_id'):
@@ -61,16 +68,43 @@ def default_search_func(vc):
         vc.instances = vc.model_view.model.search_query("{q}".format(q=q)).all()
 
 
+def _filter_m_n(vc):
+    m_ns, to_delete = {}, []
+    for k in vc.serialized_args:
+        if k.startswith('_m_n_'):
+            m_n_name = k.split('_m_n_')[1]
+            m_ns[m_n_name] = vc.serialized_args[k]
+            to_delete.append(k)
+    for key in to_delete:
+        del vc.serialized_args[key]
+    return m_ns
+
+
+def _update_m_ns(vc, m_ns):
+    instance = vc.instance
+    for key, ids in m_ns.items():
+        child_rel = getattr(vc.instance, "_m_n_table_{}".format(key))
+        child_table = getattr(webapp_models, child_rel)
+        children = db.session.query(child_table).filter(child_table.id.in_(ids)).all()
+        setattr(instance, key, children)
+
+
 def default_create_func(vc):
+    m_ns = _filter_m_n(vc)
     instance = vc.model_view.model(**vc.serialized_args)
-    db.session.add(instance)
+    vc.instance = instance
     vc.instances = [instance]
+    _update_m_ns(vc, m_ns)
+    db.session.add(instance)
 
 
 def default_update_func(vc):
+    m_ns = _filter_m_n(vc)
     instance = vc.instances[0]
+    vc.instance = instance
     for k, v in vc.serialized_args.items():
         setattr(instance, k, v)
+    _update_m_ns(vc, m_ns)
     db.session.add(instance)
 
 

vm_gen/templates/_relationship_py

@@ -1,9 +1,13 @@
 
-    [%- if not column.secondary %]
+    [%- if not column.multiple %]
     [[ column.name ]]_id = db.Column(db.Integer, db.ForeignKey('[%- if column.to %][[ column.to|camel_to_snake ]][%- else %][[ column.name ]][% endif %].id'))
     [%- endif %]
-    [[ column.name|pluralize if column.secondary else column.name ]] = db.relationship('[%- if column.to %][[ column.to ]][%- else %][[ column.name|snake_to_camel ]][% endif %]',
+    [[ column.name|pluralize if column.multiple else column.name ]] = db.relationship('[%- if column.to %][[ column.to ]][%- else %][[ column.name|snake_to_camel ]][% endif %]',
-                                        [%- if column.secondary %]secondary=[[ column.secondary ]], [%- endif %]
+                                        [%- if column.multiple %]secondary=[[ column.secondary.name ]], [%- endif %]
                                         backref=db.backref("[%- if column.backref %][[ column.backref ]][%- else %][[ name|camel_to_snake|pluralize ]][%- endif %]"),
                                         [%- if column.foreign_keys %]foreign_keys=[ [[ column.foreign_keys ]]_id],[%- endif %]
                                         )
+    [%- if column.multiple %]
+
+    _m_n_table_[[ column.name|pluralize ]] = '[%- if column.to %][[ column.to ]][%- else %][[ column.name|snake_to_camel ]][% endif %]'
+    [%- endif %]

vm_gen/templates/html/_create.html

@@ -3,13 +3,22 @@
     [%- for column in columns %]
       <label for="input-[[ name|camel_to_snake ]]-[[ column.name ]]">[[ column.name ]]</label>:
       [%- if column.type in ['relationship'] %]
-        <select id="input-[[ name|camel_to_snake ]]-[[ column.name ]]" [%- if column.secondary %]multiple[%- endif %]
+        <select id="input-[[ name|camel_to_snake ]]-[[ column.name ]]" [%- if column.multiple %]multiple
-               name="[[ column.name ]]_id">
+               name="_m_n_[[ column.name|pluralize ]]"[% else %]name="[[ column.name ]]_id"[%- endif %]>
+        [%- if not column.secondary %]
             <option selected="selected">Choose...</option>
+        [%- endif %]
                 {%- for sub_instance in model_views.[[ column.name ]].model.query.all() %}
             <option value="{{ sub_instance.id }}" {% if instance and instance.id == sub_instance.id %}selected="selected"{% endif %}>{{ sub_instance.name }}</option>
                 {%- endfor %}
         </select>
+      [%- elif column.type in ['choice', ] %]
+        <select id="input-[[ name|camel_to_snake ]]-[[ column.name ]]"
+               name="[[ column.name ]]_id">
+            [%- for value, display in column.choices.items() %]
+            <option value="[[ value ]]" {% if instance and instance.[[ column.name ]] == "[[ value ]]" %}selected="selected"{% endif %}>[[ display ]]</option>
+            [%- endfor %]
+        </select>
       [%- elif column.type in ['number', 'int', 'integer', ] %]
         <input id="input-[[ name|camel_to_snake ]]-[[ column.name ]]"
                type="number" name="[[ column.name ]]"
@@ -19,6 +28,7 @@
                type="text" name="[[ column.name ]]" autocomplete="off"
         />
       [%- endif %]
+    <br>
     [%- endfor %]
     <input type="submit">
 </form>

vm_gen/templates/html/_get.html

@@ -6,7 +6,11 @@
     <source src="{{ url_for('oshipka_bp.get_media', filepath=instance.[[ column.name ]]) }}" type="video/webm">
  </video>
   [%- elif column.type in ['relationship'] %]
+    [%- if column.multiple %]
+    <li id="display-[[ name|camel_to_snake ]]-[[ column.name|pluralize ]]"><strong>[[ column.name|pluralize ]]</strong>: {{ instance.[[ column.name|pluralize ]] }}</li>
+    [%- else %]
     <li id="display-[[ name|camel_to_snake ]]-[[ column.name ]]"><strong>[[ column.name ]]</strong>: {{ instance.[[ column.name ]] }}</li>
+    [%- endif %]
   [%- else %]
 <li id="display-[[ name|camel_to_snake ]]-[[ column.name ]]"><strong>[[ column.name ]]</strong>: {{ instance.[[ column.name ]] }}</li>
   [%- endif %]

vm_gen/templates/html/_table.html

@@ -14,7 +14,17 @@
             <tr>
                 [%- for column in columns %]
                 {% if "[[ column.name ]]" not in skip_columns  %}
-                <td>{{ instance.[[ column.name ]] }}</td>
+                <td>
+                [%- if column.type in ['relationship'] %]
+                    [%- if column.multiple %]
+                    {{ instance.[[ column.name|pluralize ]] }}
+                    [%- else %]
+                    {{ instance.[[ column.name ]] }}
+                    [%- endif %]
+                [%- else %]
+                {{ instance.[[ column.name ]] }}
+                [%- endif %]
+                </td>
                 {% endif %}
                 [%- endfor %]
                 <td>

vm_gen/templates/html/_update.html

@@ -4,12 +4,23 @@
     <label for="input-[[ name|camel_to_snake ]]-[[ column.name ]]">[[ column.name ]]</label>:
     [%- if column.type in ['relationship'] %]
         <select id="input-[[ name|camel_to_snake ]]-[[ column.name ]]"
-               name="[[ column.name ]]_id">
+               [%- if column.multiple %]multiple name="_m_n_[[ column.name|pluralize ]]"[% else %]name="[[ column.name ]]_id"[%- endif %]>
                 {%- for sub_instance in model_views.[[ column.name ]].model.query.all() %}
             <option value="{{ sub_instance.id }}"
+                    [%- if column.multiple %]
+                    {% if sub_instance in instance.[[ column.name|pluralize ]] %}selected="selected"{% endif %}>{{ sub_instance.name }}</option>
+                    [%- else %]
                     {% if instance.[[ column.name ]]_id == sub_instance.id %}selected="selected"{% endif %}>{{ sub_instance.name }}</option>
+                    [%- endif %]
                 {%- endfor %}
         </select>
+    [%- elif column.type in ['choice', ] %]
+        <select id="input-[[ name|camel_to_snake ]]-[[ column.name ]]"
+               name="[[ column.name ]]_id">
+            [%- for value, display in column.choices.items() %]
+            <option value="[[ value ]]" {% if instance.[[ column.name ]] == "[[ value ]]" %}selected="selected"{% endif %}>[[ display ]]</option>
+            [%- endfor %]
+        </select>
     [%- elif column.type in ['number', 'int', 'integer', ] %]
         <input id="input-[[ name|camel_to_snake ]]-[[ column.name ]]"
                value="{{ instance.[[ column.name ]] }}"
@@ -21,6 +32,7 @@
            type="text" name="[[ column.name ]]" autocomplete="off"
     />
     [%- endif %]
+    <br>
     [%- endfor %]
     <input type="submit">
 </form>

vm_gen/vm_gen.py

@@ -24,14 +24,15 @@ def _process_choice(column):
     }
 
 
-def process_secondary(secondary):
+def process_secondary(view_model, column_name):
-    col1, col2 = secondary.split('_')
+    model_name = camel_case_to_snake_case(view_model.get('name'))
+    secondary = "{}__{}".format(model_name, column_name)
     return {
         'name': secondary,
         'columns': [{
-            'name': col1
+            'name': model_name
         }, {
-            'name': col2
+            'name': column_name
         }]
     }
 
@@ -49,11 +50,12 @@ def enrich_view_model(view_model):
             _column_type = 'db.Boolean'
         elif column_type in ['relationship', ]:
             _column_type = 'relationship'
-            secondary = column.get('secondary')
+            multiple = column.get('multiple')
-            if secondary:
+            if multiple:
                 if '_secondaries' not in view_model:
                     view_model['_secondaries'] = []
-                secondary_model = process_secondary(secondary)
+                secondary_model = process_secondary(view_model, column_name)
+                column.update({'secondary': secondary_model})
                 view_model['_secondaries'].append(secondary_model)
         elif column_type in ['choice', ]:
             if '_choice_types' not in view_model: