Create the DataObject View (Step 4 of issue #1758)

[robyngit]

Add a View for getting & displaying Data Objects

• This is an MVP version
• It supports CSVs only, displaying them in a table
• Still needs to show loading & error messages

Modularize downloadWithCredentials in SolrResult

• Need to fetch, but not download, the data object from the Solr results model.
• To avoid duplicating logic separated out the logic for fetching the data from downloading the data (onto the user's machine).
• Added a tests for the new functions

[github-actions]

🚫 [eslint] <object-shorthand> _{reported by reviewdog 🐶}
Expected method shorthand.

metacatui/src/js/models/SolrResult.js

Lines 373 to 519 in 646cd14

	getInfo: function (fields) {
	var model = this;
	if (!fields)
	var fields =
	"abstract,id,seriesId,fileName,resourceMap,formatType,formatId,obsoletedBy,isDocumentedBy,documents,title,origin,keywords,attributeName,pubDate,eastBoundCoord,westBoundCoord,northBoundCoord,southBoundCoord,beginDate,endDate,dateUploaded,archived,datasource,replicaMN,isAuthorized,isPublic,size,read_count_i,isService,serviceTitle,serviceEndpoint,serviceOutput,serviceDescription,serviceType,project,dateModified";
	var escapeSpecialChar = MetacatUI.appSearchModel.escapeSpecialChar;
	var query = "q=";
	//If there is no seriesId set, then search for pid or sid
	if (!this.get("seriesId"))
	query +=
	'(id:"' +
	escapeSpecialChar(encodeURIComponent(this.get("id"))) +
	'" OR seriesId:"' +
	escapeSpecialChar(encodeURIComponent(this.get("id"))) +
	'")';
	//If a seriesId is specified, then search for that
	else if (this.get("seriesId") && this.get("id").length > 0)
	query +=
	'(seriesId:"' +
	escapeSpecialChar(encodeURIComponent(this.get("seriesId"))) +
	'" AND id:"' +
	escapeSpecialChar(encodeURIComponent(this.get("id"))) +
	'")';
	//If only a seriesId is specified, then just search for the most recent version
	else if (this.get("seriesId") && !this.get("id"))
	query +=
	'seriesId:"' +
	escapeSpecialChar(encodeURIComponent(this.get("id"))) +
	'" -obsoletedBy:*';
	query +=
	"&fl=" +
	fields + //Specify the fields to return
	"&wt=json&rows=1000" + //Get the results in JSON format and get 1000 rows
	"&archived=archived:*"; //Get archived or unarchived content
	var requestSettings = {
	url: MetacatUI.appModel.get("queryServiceUrl") + query,
	type: "GET",
	success: function (data, response, xhr) {
	//If the Solr response was not as expected, trigger and error and exit
	if (!data || typeof data.response == "undefined") {
	model.set("indexed", false);
	model.trigger("getInfoError");
	return;
	}
	var docs = data.response.docs;
	if (docs.length == 1) {
	docs[0].resourceMap = model.parseResourceMapField(docs[0]);
	model.set(docs[0]);
	model.trigger("sync");
	}
	//If we searched by seriesId, then let's find the most recent version in the series
	else if (docs.length > 1) {
	//Filter out docs that are obsoleted
	var mostRecent = _.reject(docs, function (doc) {
	return typeof doc.obsoletedBy !== "undefined";
	});
	//If there is only one doc that is not obsoleted (the most recent), then
	// set this doc's values on this model
	if (mostRecent.length == 1) {
	mostRecent[0].resourceMap = model.parseResourceMapField(
	mostRecent[0],
	);
	model.set(mostRecent[0]);
	model.trigger("sync");
	} else {
	//If there are multiple docs without an obsoletedBy statement, then
	// retreive the head of the series via the system metadata
	var sysMetaRequestSettings = {
	url:
	MetacatUI.appModel.get("metaServiceUrl") +
	encodeURIComponent(docs[0].seriesId),
	type: "GET",
	success: function (sysMetaData) {
	//Get the identifier node from the system metadata
	var seriesHeadID = $(sysMetaData).find("identifier").text();
	//Get the doc from the Solr results with that identifier
	var seriesHead = _.findWhere(docs, { id: seriesHeadID });
	//If there is a doc in the Solr results list that matches the series head id
	if (seriesHead) {
	seriesHead.resourceMap =
	model.parseResourceMapField(seriesHead);
	//Set those values on this model
	model.set(seriesHead);
	}
	//Otherwise, just fall back on the first doc in the list
	else if (mostRecent.length) {
	mostRecent[0].resourceMap = model.parseResourceMapField(
	mostRecent[0],
	);
	model.set(mostRecent[0]);
	} else {
	docs[0].resourceMap = model.parseResourceMapField(
	docs[0],
	);
	model.set(docs[0]);
	}
	model.trigger("sync");
	},
	error: function (xhr, textStatus, errorThrown) {
	// Fall back on the first doc in the list
	if (mostRecent.length) {
	model.set(mostRecent[0]);
	} else {
	model.set(docs[0]);
	}
	model.trigger("sync");
	},
	};
	$.ajax(
	_.extend(
	sysMetaRequestSettings,
	MetacatUI.appUserModel.createAjaxSettings(),
	),
	);
	}
	} else {
	model.set("indexed", false);
	//Try getting the system metadata as a backup
	model.getSysMeta();
	}
	},
	error: function (xhr, textStatus, errorThrown) {
	model.set("indexed", false);
	model.trigger("getInfoError");
	},
	};
	$.ajax(
	_.extend(
	requestSettings,
	MetacatUI.appUserModel.createAjaxSettings(),
	),
	);
	},