feat: add as_path on data items

jwebsite/content.py

@@ -45,6 +45,18 @@ class ContentDirectory(Content):
         raise NotImplementedError()
 
 
+class DataField:
+    def __init__(self, file: "DataFile", value: Any) -> None:
+        self.__file = file
+        self.__value = value
+
+    def as_path(self) -> Path:
+        return self.__file.path.parent / str(self.__value)
+
+    def __str__(self) -> str:
+        return str(self.__value)
+
+
 class DataFile(Content):
     def __init__(self, path: Path) -> None:
         super().__init__(path)
@@ -52,10 +64,11 @@ class DataFile(Content):
             self.__data = load(data_file, Loader)
 
     def __getitem__(self, key: Any) -> Any:
-        return self.__data.get(key)
+        return DataField(self, self.__data.get(key))
 
     def __iter__(self) -> Iterator[Any]:
-        yield from self.__data
+        for it in self.__data:
+            yield DataField(self, it)
 
 
 class MarkdownFile(Content):

tests/test_content.py

@@ -25,11 +25,18 @@ def test_load_data(datadir: Path) -> None:
     content = ContentDirectory(datadir)
     steven = content.load(Path("otters/steven.yml"))
 
-    assert steven["name"] == "Steven"
+    assert str(steven["name"]) == "Steven"
-    assert steven["mood"] == "Angry"
+    assert str(steven["mood"]) == "Angry"
 
     otter_list = content.load(Path("otters/otter_list.json"))
-    assert list(otter_list) == ["steven", "peter"]
+    assert [str(it) for it in otter_list] == ["steven", "peter"]
+
+
+def test_data_as_path(datadir: Path) -> None:
+    content = ContentDirectory(datadir)
+    paths = content.load(Path("otters/paths.yml"))
+
+    assert paths["steven"].as_path() == datadir / "otters" / "relative-steven"
 
 
 def test_load_markdown(datadir: Path) -> None:

tests/test_content/otters/paths.yml

@@ -0,0 +1,2 @@
+steven: ./relative-steven
+