Class: CollectionModel

CollectionModel()

A collection of datasets, defined by one or more search filters

Constructor

new CollectionModel()

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Extends

Members

type :string

The name of this Model
Type:
  • string
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Methods

addIsPartOfFilter(seriesIdopt) → {Filter}

Creates a FilterModel with isPartOf as the field and this collection's seriesId as the value, then adds it to the definitionFilters collection. (which will also add it to the searchFilters collection)
Parameters:
Name Type Attributes Description
seriesId string <optional>
 the seriesId of the collection or portal
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Returns:
The new isPartOf filter that was created
Type
Filter

addToUploadQueue()

Updates the upload status attribute on this model and marks the collection as changed
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bytesToSize()

Converts the number of bytes into a human readable format and updates the `sizeStr` attribute
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cacheSearchResults(searchResults)

Creates a copy of the SolrResults collection and saves it in this model so that there is always access to the unfiltered list of datasets
Parameters:
Name Type Description
searchResults SolrResults The SolrResults collection to cache
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calculateChecksum(algorithmopt) → {string}

Calculate a checksum for the object
Parameters:
Name Type Attributes Description
algorithm string <optional>
 The algorithm to use, defaults to MD5
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Returns:
A checksum plain JS object with value and algorithm attributes
Type
string

checkAuthority(actionopt, optionsopt) → {boolean}

Check if the current user is authorized to perform an action on this object. This function doesn't return the result of the check, but it sends an XHR, updates this model, and triggers a change event.
Parameters:
Name Type Attributes Default Description
action string <optional>
 changePermission The action (read, write, or changePermission) to check if the current user has authorization to perform. By default checks for the highest level of permission.
options object <optional>
 Additional options for this function. See the properties below.
Properties:
Name Type Description
options.onSuccess function A function to execute when the checkAuthority API is successfully completed
options.onError function A function to execute when the checkAuthority API returns an error, or when no PID or SID can be found for this object.
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Returns:
Type
boolean

createAccessPolicy(accessPolicyXMLopt) → {AccessPolicy}

Create an access policy for this DataONEObject using the default access policy set in the AppModel.
Parameters:
Name Type Attributes Description
accessPolicyXML Element <optional>
 An XML node that contains a list of access rules.
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Returns:
- an AccessPolicy collection that represents the given XML or the default policy set in the AppModel.
Type
AccessPolicy

createSearchModel() → {Search}

Creates a new instance of a Search model with a Filters collection. The Search model is created and returned and NOT set directly on the model in this function, because this function is called during parse(), when we're not ready to set attributes directly on the model yet.
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Returns:
Type
Search

createSysMeta()

Build a fresh system metadata document for this object when it is new Return it as a DOM object
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createViewURL() → {string}

Creates a URL for viewing more information about this object
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Returns:
Type
string

createXML() → {Element}

Initialize the object XML for a brand spankin' new collection
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Returns:
Type
Element

defaults()

Default attributes for CollectionModels
Properties:
Name Type Description
ignoreQueryGroups Array.<string> Deprecated
definition FilterGroup The parent-level Filter Group model that represents the collection definition.
definitionFilters Filters A Filters collection that stores definition filters that have been serialized to the Collection. The same filters that are stored in the definition.
searchModel Search A Search model with a Filters collection that contains the filters associated with this collection
searchResults SolrResults A SolrResults collection that contains the filtered search results of datasets in this collection
allSearchResults SolrResults A SolrResults collection that contains the unfiltered search results of all datasets in this collection
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downloadWithCredentials()

This method will download this object while sending the user's auth token in the request.
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Returns:
None

fetch()

Overrides the default Backbone.Model.fetch() function to provide some custom fetch options
Overrides:
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fetchSystemMetadata()

Sends an AJAX request to fetch the system metadata for this object. Will not trigger a sync event since it does not use Backbone.Model.fetch
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findLatestVersion(latestVersionopt, possiblyNeweropt)

Finds the latest version of this object by travesing the obsolescence chain
Parameters:
Name Type Attributes Description
latestVersion string <optional>
 The identifier of the latest known object in the version chain. If not supplied, this model's `id` will be used.
possiblyNewer string <optional>
 The identifier of the object that obsoletes the latestVersion. It's "possibly" newer, because it may be private/inaccessible
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formatXML(xml) → {string}

A utility function that will format an XML string or XML nodes by camel-casing the node names, as necessary
Parameters:
Name Type Description
xml string | Element The XML to format
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Returns:
The formatted XML string
Type
string

generateId() → {string}

Generate a unique identifier to be used as an XML id attribute
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Returns:
The identifier string that was generated
Type
string

getCanonicalDOIIRI() → {string|null}

Check if the seriesID or PID matches a DOI regex, and if so, return a canonical IRI for the DOI.
Since:
  • 2.26.0
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Returns:
- The canonical IRI for the DOI, or null if neither the seriesId nor the PID match a DOI regex.
Type
string | null

getFormat()

Looks up human readable format of the DataONE Object
Since:
  • 2.28.0
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Returns:
format String

getFormatId()

Get the object format identifier for this object
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getPackageURL()

Create the URL string that is used to download this package
Since:
  • 2.28.0
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Returns:
PackageURL string for this DataONE Object

getQuery()

This is a shortcut function that returns the query for the datasets in this portal, using the Search model for this portal. This is the full query that includes the filters not serialized to the portal XML, such as the filters used for the DataCatalogView.
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getType()

Returns a plain-english version of the general format - either image, program, metadata, PDF, annotation or data
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getXMLSafeID(idopt) → {string}

Converts the identifier string to a string safe to use in an XML id attribute
Parameters:
Name Type Attributes Description
id string <optional>
 The ID string
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Returns:
- The XML-safe string
Type
string

handleChange(modelopt, options)

Set the changed flag on any system metadata or content attribute changes, and set the hasContentChanges flag on content changes only
Parameters:
Name Type Attributes Description
model DataONEObject <optional>
options object Furhter options for this function
Properties:
Name Type Description
options.force boolean If true, a change will be handled regardless if the attribute actually changed
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hasUpdates() → {boolean}

Checks if this system metadata XML has updates that need to be synced with the server.
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Returns:
Type
boolean

initialize()

The default Backbone.Model.initialize() function
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isDOI(customString) → {boolean}

Checks if the pid or sid or given string is a DOI
Parameters:
Name Type Description
customString string Optional. An identifier string to check instead of the id and seriesId attributes on the model
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Returns:
True if it is a DOI
Type
boolean

isData() → {boolean}

Checks the formatId of this model and determines if it is a data file. This determination is mostly used for display and the provenance editor. In the DataONE API, many formatIds are considered `DATA` formatTypes, but they are categorized as images DataONEObject#isImage or software DataONEObject#isSoftware.
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Returns:
true if this data object is a data file, false if it is other
Type
boolean

isDerivationField(field) → {boolean}

Returns true if this provenance field points to a derivation of this data or metadata object
Parameters:
Name Type Description
field string
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Returns:
Type
boolean

isImage() → {boolean}

Checks the formatId of this model and determines if it is an image.
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Returns:
true if this data object is an image, false if it is other
Type
boolean

isNew() → {boolean}

Returns true if this DataONE object is new. A DataONE object is new if there is no upload date and it's been synced (i.e. been fetched)
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Returns:
Type
boolean

isPDF() → {boolean}

Checks the formatId of this model and determines if it a PDF.
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Returns:
true if this data object is a pdf, false if it is other
Type
boolean

isSoftware() → {boolean}

Checks the formatId of this model and determines if it is a software file. This determination is mostly used for display and the provenance editor. In the DataONE API, many formatIds are considered `DATA` formatTypes, but they are categorized as images DataONEObject#isImage for display purposes.
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Returns:
true if this data object is a software file, false if it is other
Type
boolean

isSourceField(field) → {boolean}

Returns true if this provenance field points to a source of this data or metadata object
Parameters:
Name Type Description
field string
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Returns:
Type
boolean

nodeNameMap()

Maps the lower-case sys meta node names (valid in HTML DOM) to the camel-cased sys meta node names (valid in DataONE). Used during parse() and serialize()
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onSuccessfulSave(modelopt, responseopt, xhropt)

This function is executed when the XHR that saves this DataONEObject has successfully completed. It can be called directly if a DataONEObject is saved without directly using the DataONEObject.save() function.
Parameters:
Name Type Attributes Description
model DataONEObject <optional>
 A reference to this DataONEObject model
response XMLHttpRequest.response <optional>
 The XHR response object
xhr XMLHttpRequest <optional>
 The XHR that was just completed successfully
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parse(response) → {JSON}

Overrides the default Backbone.Model.parse() function to parse the custom collection XML document
Parameters:
Name Type Description
response XMLDocument The XMLDocument returned from the fetch() AJAX call
Overrides:
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Returns:
The result of the parsed XML, in JSON. To be set directly on the model.
Type
JSON

parseCollectionXML(rootNode) → {JSON}

Parses the collection XML into a JSON object
Parameters:
Name Type Description
rootNode Element The XML Element that contains all the collection nodes
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Returns:
The result of the parsed XML, in JSON. To be set directly on the model.
Type
JSON

parseTextNode(parentNode, nodeName, isMultiple) → {string|Array}

Gets the text content of the XML node matching the given node name
Parameters:
Name Type Description
parentNode Element The parent node to select from
nodeName string The name of the XML node to parse
isMultiple boolean If true, parses the nodes into an array
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Returns:
- Returns a string or array of strings of the text content
Type
string | Array

removeWhiteSpaceFromSolrFields(json)

Removes white space from string values returned by Solr when the white space causes issues. For now this only effects the `resourceMap` field, which will index new line characters and spaces when the RDF XML has those in the `identifier` XML element content. This was causing bugs where DataONEObject models were created with `id`s with new line and white space characters (e.g. `\n urn:uuid:1234...`)
Parameters:
Name Type Description
json object The Solr document as a JS Object, which will be directly altered
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reserveSeriesId()

Generate a UUID, reserve it using the DataOne API, and set it on the model
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resetID()

Resets the identifier for this model. This undos all of the changes made in {DataONEObject#updateID}
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save()

Saves the DataONEObject System Metadata to the server
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serializeSysMeta() → {string}

Using the attributes set on this DataONEObject model, serializes the system metadata XML
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Returns:
Type
string

setMissingFileName()

Creates a file name for this DataONEObject and updates the `fileName` attribute
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setPossibleAuthMNs()

Creates an array of objects that represent Member Nodes that could possibly be this object's authoritative MN. This function updates the `possibleAuthMNs` attribute on this model.
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setProvClass(className)

Set the DataONE ProvONE provenance class param className - the shortened form of the actual classname value. The shortname will be appened to the ProvONE namespace, for example, the className "program" will result in the final class name "http://purl.dataone.org/provone/2015/01/15/ontology#Program" see https://github.com/DataONEorg/sem-prov-ontologies/blob/master/provenance/ProvONE/v1/provone.html
Parameters:
Name Type Description
className string
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toJson()

A utility function for converting XML to JSON
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toXML(json, containerNode) → {Element}

Serialize the DataONE object JSON to XML
Parameters:
Name Type Description
json object the JSON object to convert to XML
containerNode Element an HTML element to insertt the resulting XML into
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Returns:
The updated HTML Element
Type
Element

updateCollectionDOM(objectDOM) → {XMLElement}

Updates collection XML with values in the collection model
Parameters:
Name Type Description
objectDOM XMLDocument the XML element to be updated
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Returns:
An updated XML element
Type
XMLElement

updateID(id)

Update identifiers for this object
Parameters:
Name Type Description
id string Optional identifier to update with. Generated automatically when not given. Note that this method caches the objects attributes prior to updating so this.resetID() can be called in case of a failure state. Also note that this method won't run if theh oldPid attribute is set. This enables knowing before this.save is called what the next PID will be such as the case where we want to update a matching EML entity when replacing files.
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updateProgress(e)

Updates the progress percentage when the model is getting uploaded
Parameters:
Name Type Description
e ProgressEvent The ProgressEvent when this file is being uploaded
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updateRelationships()

Updates the relationships with other models when this model has been updated
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updateSearchModel(model, record)

updateSearchModel - This function is called when any changes are made to the definition filters. The function adds, removes, or updates models in the Search Model filters when models are changed in the collection Definition Filters.
Parameters:
Name Type Description
model Filter | Filters The model or collection that has been changed (filter models) or updated (filters collection). This is ignored.
record object The data passed by backbone that indicates which models have been added, removed, or updated. If the only change was to a pre-existing model attribute, then the object will be empty.
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updateSysMeta()

Updates the DataONEObject System Metadata to the server
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updateTo110(modelJSON) → {JSON}

Takes parsed Collections 1.0.0 XML in JSON format and makes any changes required so that collections are still represented in MetacatUI as they were before MetacatUI was updated to support 1.1.0 Collections.
Parameters:
Name Type Description
modelJSON JSON Parsed 1.0.0 Collections XML, in JSON
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Returns:
The updated JSON, compatible with 1.1.0 changes
Type
JSON

url()

Overrides:
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validate(attrsopt, optionsopt) → {Object}

Overrides the default Backbone.Model.validate.function() to check if this portal model has all the required values necessary to save to the server.
Parameters:
Name Type Attributes Description
attrs Object <optional>
 A literal object of model attributes to validate.
options Object <optional>
 A literal object of options for this validation process
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Returns:
If there are errors, an object comprising error messages. If no errors, returns nothing.
Type
Object

validateLabel(label) → {string}

Checks that a label does not equal a restricted value (e.g. new temporary name), and that it's encoded properly for use as part of a url
Parameters:
Name Type Description
label string The label to be validated
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Returns:
- If the label is invalid, an error message string is returned
Type
string