targetClass = repository.find(targetClassName);
            if (targetClass == null) {
                listener.warning(String.format("Could not locate target class '%s' for field value link '%s'", targetClass, fieldName));
                Element element = document.createElement("UNHANDLED-VALUE");
                element.appendChild(document.createTextNode(targetClassName + ":" + parts[1]));

        lenient().when(locator.getURL()).thenReturn(smbUrl);
    }

    // Helper: reflectively set private/protected field on an object
    private static void setField(Object target, Class<?> declaring, String name, Object value) {
        try {
            Field f = declaring.getDeclaredField(name);
            f.setAccessible(true);
            f.set(target, value);
        } catch (Exception e) {

	relation, ok := modelSchema.Relationships.Relations[field]
	isRelation := ok && relation.JoinTable != nil
	if !isRelation {
		return fmt.Errorf("failed to find relation: %s", field)
	}

	for _, ref := range relation.References {
		f := joinSchema.LookUpField(ref.ForeignKey.DBName)
		if f == nil {
			return fmt.Errorf("missing field %s for join table", ref.ForeignKey.DBName)
		}

            addFieldToSource(sourceMap, "updatedTime", updatedTime);
        }
        return sourceMap;
    }

    protected void addFieldToSource(Map<String, Object> sourceMap, String field, Object value) {
        sourceMap.put(field, value);
    }

    // ===================================================================================
    //                                                                      Basic Override

from fastapi import Depends, FastAPI

app = FastAPI()


def get_username():
    try:
        yield "Rick"
    finally:
        print("Cleanup up before response is sent")


@app.get("/users/me")
def get_user_me(username: str = Depends(get_username, scope="function")):

  "message": "Deep Learning FTW!"
}
```

## パスを含んだパスパラメータ

パス `/files/{file_path}` となる *path operation* を持っているとしましょう。

ただし、 `home/johndoe/myfile.txt` のような*パス*を含んだ `file_path` が必要です。

したがって、URLは `/files/home/johndoe/myfile.txt` の様になります。

### OpenAPIサポート

OpenAPIはテストや定義が困難なシナリオにつながる可能性があるため、内部に*パス*を含む*パスパラメータ*の宣言をサポートしていません。

それにも関わらず、Starletteの内部ツールのひとつを使用することで、**FastAPI**はそれが実現できます。

            addFieldToSource(sourceMap, "urlExpr", urlExpr);
        }
        return sourceMap;
    }

    protected void addFieldToSource(Map<String, Object> sourceMap, String field, Object value) {
        sourceMap.put(field, value);
    }

    // ===================================================================================
    //                                                                      Basic Override

    }

    /**
     * Determines if the given document data matches the configured match expression.
     *
     * @param map the document data as a map of field names to values
     * @return true if the document matches the expression, false otherwise
     */
    public boolean match(final Map<String, Object> map) {

        delegate = new MetadataStaxReader(contentTransformer::transform);
    }

    /**
     * Returns the state of the "add default entities" flag.
     *
     * @return boolean a field value
     */
    public boolean getAddDefaultEntities() {
        return delegate.getAddDefaultEntities();
    }

    /**
     * Sets the state of the "add default entities" flag.
     *

func (z *healingTracker) DecodeMsg(dc *msgp.Reader) (err error) {
	var field []byte
	_ = field
	var zb0001 uint32
	zb0001, err = dc.ReadMapHeader()
	if err != nil {
		err = msgp.WrapError(err)
		return
	}
	for zb0001 > 0 {
		zb0001--
		field, err = dc.ReadMapKeyPtr()
		if err != nil {
			err = msgp.WrapError(err)
			return
		}
		switch msgp.UnsafeString(field) {
		case "ID":
			z.ID, err = dc.ReadString()