"type": "date",
        "format": "date_optional_time"
      },
      "location": {
        "type": "geo_point"
      },
      "mimetype": {
        "type": "keyword"
      },
      "parent_id": {
        "type": "keyword"
      },
      "role": {
        "type": "keyword"
      },
      "label": {
        "type": "keyword"
      },
      "virtual_host": {
        "type": "keyword"

        "type": "date",
        "format": "date_optional_time"
      },
      "location": {
        "type": "geo_point"
      },
      "mimetype": {
        "type": "keyword"
      },
      "parent_id": {
        "type": "keyword"
      },
      "role": {
        "type": "keyword"
      },
      "label": {
        "type": "keyword"
      },
      "virtual_host": {
        "type": "keyword"

        "type": "date",
        "format": "date_optional_time"
      },
      "location": {
        "type": "geo_point"
      },
      "mimetype": {
        "type": "keyword"
      },
      "parent_id": {
        "type": "keyword"
      },
      "role": {
        "type": "keyword"
      },
      "label": {
        "type": "keyword"
      },
      "virtual_host": {
        "type": "keyword"

	parent := Parent{}
	DB.Create(&parent)

	child := Child{ParentID: &parent.ID, Parent: &parent, Name: "HasManyCircularReference"}
	child1 := Child{ParentID: &parent.ID, Parent: &parent, Name: "HasManyCircularReference1"}

	parent.Children = []*Child{&child, &child1}
	DB.Save(&parent)

	var children []*Child
	DB.Where("parent_id = ?", parent.ID).Find(&children)
	if len(children) != len(parent.Children) ||

        assertEquals(1, indexingHelper.deleteChildDocument(client, id));
        assertEquals("fess.update", resultMap.get("index"));
        assertEquals(id, resultMap.get("id"));
        assertEquals("parent_id", resultMap.get("field"));
    }

    public void test_getChildDocumentList() {
        documentSizeByQuery = 1L;
        final Map<String, String> resultMap = new HashMap<>();

index.field.segment=segment
index.field.role=role
index.field.boost=boost
index.field.created=created
index.field.timestamp=timestamp
index.field.label=label
index.field.mimetype=mimetype
index.field.parent_id=parent_id
index.field.important_content=important_content
index.field.content=content
index.field.content_minhash_bits=content_minhash_bits
index.field.cache=cache
index.field.digest=digest
index.field.title=title

    /** The key of the configuration. e.g. mimetype */
    String INDEX_FIELD_MIMETYPE = "index.field.mimetype";

    /** The key of the configuration. e.g. parent_id */
    String INDEX_FIELD_parent_id = "index.field.parent_id";

    /** The key of the configuration. e.g. important_content */
    String INDEX_FIELD_important_content = "index.field.important_content";

        if (!this.propertiesFile.exists()) {
            final File parentDir = this.propertiesFile.getParentFile();
            if (!parentDir.exists()) {
                if (!parentDir.mkdir()) {
                    throw new FileAccessException("ECL0109", new Object[] { file.getAbsolutePath() });
                }
            } else if (!parentDir.isDirectory()) {

	Coupon   *Coupon
	CouponID string
}

type Parent struct {
	gorm.Model
	FavChildID uint
	FavChild   *Child
	Children   []*Child
}

type Child struct {
	gorm.Model
	Name     string
	ParentID *uint
	Parent   *Parent

            if (parentData == null) {
                currentData = superData;
            } else if (!parentIds.add(parentData.getId())) {
                StringBuilder message = new StringBuilder("The parents form a cycle: ");
                for (String parentId : parentIds) {
                    message.append(parentId).append(" -> ");
                }
                message.append(parentData.getId());