Wrappe modular aufgebaut, Tests erfolgreich, Menüleiste und Werzeugleiste werden eingetragen (QT6 und QT5)- (Es fehlen noch Fachplugins, um zu prüfen, ob es auch wirklich in QGIS geht)

functions/ly_metadata_wrapper.py

@@ -0,0 +1,90 @@
+# layer/metadata.py
+
+def get_layer_type(layer) -> str:
+    if layer is None:
+        return "unknown"
+
+    layer_type = getattr(layer, "layer_type", None)
+    if layer_type is not None:
+        return str(layer_type)
+
+    try:
+        if callable(getattr(layer, "isSpatial", None)):
+            return "vector" if layer.isSpatial() else "table"
+    except Exception:
+        pass
+
+    return "unknown"
+
+
+def get_layer_crs(layer) -> str:
+    if layer is None:
+        return "None"
+
+    crs = getattr(layer, "crs", None)
+    if crs is not None and not callable(crs):
+        if isinstance(crs, str):
+            return crs
+        return "None"
+
+    try:
+        crs_obj = layer.crs()
+        authid = getattr(crs_obj, "authid", None)
+        if callable(authid):
+            value = authid()
+            if isinstance(value, str):
+                return value
+    except Exception:
+        pass
+
+    return "None"
+
+
+
+def get_layer_fields(layer) -> list[str]:
+    if layer is None:
+        return []
+
+    fields = getattr(layer, "fields", None)
+    if fields is not None and not callable(fields):
+        return list(fields)
+
+    try:
+        f = layer.fields()
+        if callable(getattr(f, "names", None)):
+            return list(f.names())
+        return list(f)
+    except Exception:
+        return []
+
+
+def get_layer_source(layer) -> str:
+    if layer is None:
+        return "None"
+
+    source = getattr(layer, "source", None)
+    if source is not None and not callable(source):
+        return str(source)
+
+    try:
+        return layer.source() or "None"
+    except Exception:
+        return "None"
+
+
+def is_layer_editable(layer) -> bool:
+    if layer is None:
+        return False
+
+    editable = getattr(layer, "editable", None)
+    if editable is not None:
+        return bool(editable)
+
+    try:
+        is_editable = getattr(layer, "isEditable", None)
+        if callable(is_editable):
+            return bool(is_editable())
+    except Exception:
+        pass
+
+    return False