models: Add template field to Schild model

Also, remove obsolete methods.

schilder2000/instance.py

@@ -19,7 +19,7 @@ bp = Blueprint(
 def schild_html(ident):
     schild = db.get_or_404(Schild, ident)
     # raise Exception
-    return bp.render_template("schild.html.j2", schild=schild)
+    return bp.render_template(schild.template, schild=schild)
 
 
 @bp.route('/schild/<ident>.pdf')

schilder2000/models.py

-import json
-from pathlib import Path
 from uuid import UUID
 
 from uuid_extensions import uuid7
@@ -11,20 +9,8 @@ from . import db
 
 
 class Schild(db.Model):
-    ident: Mapped[UUID] = mapped_column(primary_key=True,
-                                        default=uuid7)
+    ident: Mapped[UUID] = mapped_column(primary_key=True, default=uuid7)
     title: Mapped[str] = mapped_column(String(31))
     text: Mapped[str] = mapped_column(Text)
     image: Mapped[str] = mapped_column(String(255), nullable=True)
-
-    @classmethod
-    def from_file(cls, path):
-        path = Path(path)
-        with path.open() as fp:
-            content = json.load(fp)
-            return cls(ident=path.name, **content)
-
-    @classmethod
-    def get_all_schilder(cls, path: Path):
-        for f in path.glob("*.schild"):
-            yield cls.from_file(f)
+    template: Mapped[str] = mapped_column(String(255))