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Advanced add/update

Advanced creating and updating items

In addition to standard OData add and update items operations REST provides such useful methods as AddValidateUsingPath and ValidateUpdateListItem. The first is only presented in modern SharePoint, it not only allows adding items right in a sub folder but also operate with form data payloads and control check in process. ValidateUpdateListItem is handy for operations requiring system-like-update logic via pure REST.

In Gosip, AddValidateUsingPath and ValidateUpdateListItem are represented with Items().AddValidate() and Item.UpdateValidate() methods correspondingly:

Add validate

list := sp.Web().GetList("Lists/MyList")

// Method options
options := &api.ValidateAddOptions{
  NewDocumentUpdate: true,
  CheckInComment: "test",
  DecodedPath: "Lists/MyList/subfolder" // is optional
}

// Form data payload
data := map[string]string{
  "Title": "New item",
}

if _, err := list.Items().AddValidate(data, options); err != nil {
	log.Fatal(err)
}

As DecodedPath option the relative path to folder can be provided. It's optional. The path should be relative to a web without trailing slash in the beginning. Gosip adds web relative URL automatically.

ValidateAddOptions are also optional, when no new document update or check-in comment or folder path are ever required, a nil value should be passed.

list := sp.Web().GetList("Lists/MyList")

// Form data payload
data := map[string]string{
  "Title": "New item",
}

if _, err := list.Items().AddValidate(data, nil); err != nil {
	log.Fatal(err)
}

Update validate

Using update validate is almost the same:

options := &ValidateUpdateOptions{
  NewDocumentUpdate: true,
  CheckInComment: "test",
}

data := map[string]string{
  "Title": "New item",
}

if _, err := list.Items().GetByID(3).UpdateValidate(data, options); err != nil {
	log.Fatal(err)
}

Form values fingerprints

Form values passed to the methods should stand for an array of { FieldName: "", FieldValue: "" } objects where field value is a string of specific format depending on field's data type.

Gosip simplifies this payload operating with map of strings. In payload, map key should stand for a valid FieldName, a value, obviously, is the one mapped to FieldValue.

The fingerprints for the data types are following:

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