2019-09-04 21:46:33 -07:00

57 lines
1.9 KiB
TypeScript

import Component from '@ember/component';
import { setProperties } from '@ember/object';
import { task } from 'ember-concurrency';
import { IDatasetColumn, IDatasetColumnWithHtmlComments } from 'wherehows-web/typings/api/datasets/columns';
import { IDatasetSchema } from 'wherehows-web/typings/api/datasets/schema';
import { augmentObjectsWithHtmlComments } from 'wherehows-web/utils/api/datasets/columns';
import { readDatasetSchemaByUrn } from 'wherehows-web/utils/api/datasets/schema';
import { containerDataSource } from '@datahub/utils/api/data-source';
import { ETaskPromise } from '@datahub/utils/types/concurrency';
@containerDataSource('getDatasetSchemaTask', ['urn'])
export default class DatasetSchemaContainer extends Component {
/**
* The urn identifier for the dataset
* @type {string}
*/
urn!: string;
/**
* json string for the dataset schema properties
* @type {string}
*/
json: string;
/**
* Stores the last modified date on the dataset schema as an utc time string
* @type {string}
*/
lastModifiedString: string = '';
/**
* List of schema properties for the dataset
* @type {IDatasetColumnWithHtmlComments | IDatasetColumn}
*/
schemas: Array<IDatasetColumnWithHtmlComments | IDatasetColumn>;
/**
* If there is schema or not
*/
isEmpty: boolean = false;
/**
* Reads the schema for the dataset
*/
@task(function*(this: DatasetSchemaContainer): IterableIterator<Promise<IDatasetSchema>> {
let schemas,
{ columns = [], rawSchema: json, lastModified }: IDatasetSchema = yield readDatasetSchemaByUrn(this.urn);
let lastModifiedString = lastModified ? new Date(lastModified).toLocaleString() : '';
schemas = augmentObjectsWithHtmlComments(columns);
setProperties(this, { schemas, json: json || '{}', lastModifiedString, isEmpty: !json });
})
getDatasetSchemaTask!: ETaskPromise<IDatasetSchema>;
}