Complete and total rework ahead.

crudkit/ui/fragments.py

@@ -0,0 +1,81 @@
+from jinja2 import Environment, FileSystemLoader, ChoiceLoader
+from sqlalchemy.orm import class_mapper, RelationshipProperty
+from flask import current_app
+import os
+
+def get_env():
+    app_loader = current_app.jinja_loader
+
+    default_path = os.path.join(os.path.dirname(__file__), 'templates')
+    fallback_loader = FileSystemLoader(default_path)
+
+    env = Environment(loader=ChoiceLoader([
+        app_loader,
+        fallback_loader
+    ]))
+    return env
+
+def get_crudkit_template(env, name):
+    try:
+        return env.get_template(f'crudkit/{name}')
+    except Exception:
+        return env.get_template(name)
+
+def render_field(field, value):
+    env = get_env()
+    template = get_crudkit_template(env, 'field.html')
+    return template.render(
+        field_name=field['name'],
+        field_label=field.get('label', field['name']),
+        value=value,
+        field_type=field.get('type', 'text'),
+        options=field.get('options', None)
+    )
+
+def render_table(objects):
+    env = get_env()
+    template = get_crudkit_template(env, 'table.html')
+    return template.render(objects=objects)
+
+def render_form(model_cls, values, session=None):
+    env = get_env()
+    template = get_crudkit_template(env, 'form.html')
+    fields = []
+    fk_fields = set()
+
+    mapper = class_mapper(model_cls)
+    for prop in mapper.iterate_properties:
+        # FK Relationship fields (many-to-one)
+        if isinstance(prop, RelationshipProperty) and prop.direction.name == 'MANYTOONE':
+            if session is None:
+                continue
+
+            related_model = prop.mapper.class_
+            options = session.query(related_model).all()
+            fields.append({
+                'name': f"{prop.key}_id",
+                'label': prop.key,
+                'type': 'select',
+                'options': [
+                    {'value': getattr(obj, 'id'), 'label': str(obj)}
+                    for obj in options
+                ]
+            })
+            fk_fields.add(f"{prop.key}_id")
+
+    # Now add basic columns — excluding FKs already covered
+    for col in model_cls.__table__.columns:
+        if col.name in fk_fields:
+            continue
+        if col.name in ('id', 'created_at', 'updated_at'):
+            continue
+        if col.default or col.server_default or col.onupdate:
+            continue
+        fields.append({
+            'name': col.name,
+            'label': col.name,
+            'type': 'text',
+        })
+
+    return template.render(fields=fields, values=values, render_field=render_field)
+

crudkit/ui/templates/field.html

@@ -0,0 +1,16 @@
+<label for="{{ field_name }}">{{ field_label }}</label>
+
+{% if field_type == 'select' %}
+    <select name="{{ field_name }}" {%- if not options %}disabled{% endif %}>
+        {% if options %}
+            <option value="">-- Select --</option>
+            {% for opt in options %}
+                <option value="{{ opt.value }}" {% if opt.value|string == value|string %}selected{% endif %}>{{ opt.label }}</option>
+            {% endfor %}
+        {% else %}
+            <option value="">-- No selection available --</option>
+        {% endif %}
+    </select>
+{% else %}
+    <input type="text" name="{{ field_name }}" value="{{ value }}">
+{% endif %}

crudkit/ui/templates/form.html

@@ -0,0 +1,6 @@
+<form method="POST">
+    {% for field in fields %}
+        {{ render_field(field, values.get(field.name, '')) }}
+    {% endfor %}
+    <button type="submit">Create</button>
+</form>

crudkit/ui/templates/table.html

@@ -0,0 +1,12 @@
+<table>
+    {% if objects %}
+        <tr>
+            {% for field in objects[0].__table__.columns %}<th>{{ field.name }}</th>{% endfor %}
+        </tr>
+        {% for obj in objects %}
+            <tr>{% for field in obj.__table__.columns %}<td>{{ obj[field.name] }}</td>{% endfor %}</tr>
+        {% endfor %}
+    {% else %}
+        <tr><th>No data.</th></tr>
+    {% endif %}
+</table>