mirror of https://github.com/Budibase/budibase.git
Andrew Kingston
5 years ago
1 changed files with 0 additions and 361 deletions
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<script> |
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import { getContext } from "svelte" |
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import { ProgressCircle, Pagination } from "@budibase/bbui" |
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import { |
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buildLuceneQuery, |
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luceneQuery, |
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luceneSort, |
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luceneLimit, |
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} from "builder/src/helpers/lucene" |
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import Placeholder from "./Placeholder.svelte" |
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import { fetchData } from "utils/fetch/fetchData.js" |
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|
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export let dataSource |
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export let filter |
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export let sortColumn |
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export let sortOrder |
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export let limit |
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export let paginate |
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|
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const { API, styleable, Provider, ActionTypes } = getContext("sdk") |
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const component = getContext("component") |
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|
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// Loading flag every time data is being fetched |
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let loading = false |
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|
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// Loading flag for the initial load |
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// Mark as loaded if we have no datasource so we don't stall forever |
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let loaded = !dataSource |
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let schemaLoaded = false |
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|
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// Provider state |
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let rows = [] |
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let allRows = [] |
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let schema = {} |
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let bookmarks = [null] |
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let pageNumber = 0 |
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let query = null |
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let queryExtensions = {} |
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|
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// Sorting can be overridden at run time, so we can't use the prop directly |
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let currentSortColumn = sortColumn |
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let currentSortOrder = sortOrder |
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|
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// Reset the current sort state to props if props change |
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$: currentSortColumn = sortColumn |
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$: currentSortOrder = sortOrder |
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|
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$: defaultQuery = buildLuceneQuery(filter) |
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$: extendQuery(defaultQuery, queryExtensions) |
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$: internalTable = dataSource?.type === "table" |
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$: nestedProvider = dataSource?.type === "provider" |
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$: hasNextPage = bookmarks[pageNumber + 1] != null |
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$: hasPrevPage = pageNumber > 0 |
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$: getSchema(dataSource) |
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$: sortType = getSortType(schema, currentSortColumn) |
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|
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// Wait until schema loads before loading data, so that we can determine |
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// the correct sort type first time |
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$: { |
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if (schemaLoaded) { |
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fetchData( |
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dataSource, |
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schema, |
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query, |
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limit, |
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currentSortColumn, |
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currentSortOrder, |
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sortType, |
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paginate |
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) |
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} |
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} |
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|
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// Reactively filter and sort rows if required |
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$: { |
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if (internalTable) { |
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// Internal tables are already processed server-side |
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rows = allRows |
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} else { |
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// For anything else we use client-side implementations to filter, sort |
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// and limit |
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const filtered = luceneQuery(allRows, query) |
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const sorted = luceneSort( |
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filtered, |
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currentSortColumn, |
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currentSortOrder, |
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sortType |
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) |
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rows = luceneLimit(sorted, limit) |
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} |
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} |
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|
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// Build our action context |
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$: actions = [ |
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{ |
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type: ActionTypes.RefreshDatasource, |
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callback: () => refresh(), |
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metadata: { dataSource }, |
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}, |
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{ |
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type: ActionTypes.AddDataProviderQueryExtension, |
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callback: addQueryExtension, |
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}, |
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{ |
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type: ActionTypes.RemoveDataProviderQueryExtension, |
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callback: removeQueryExtension, |
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}, |
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{ |
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type: ActionTypes.SetDataProviderSorting, |
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callback: ({ column, order }) => { |
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if (column) { |
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currentSortColumn = column |
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} |
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if (order) { |
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currentSortOrder = order |
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} |
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}, |
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}, |
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] |
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|
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// Build our data context |
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$: dataContext = { |
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rows, |
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schema, |
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rowsLength: rows.length, |
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|
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// Undocumented properties. These aren't supposed to be used in builder |
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// bindings, but are used internally by other components |
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id: $component?.id, |
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state: { |
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query, |
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sortColumn: currentSortColumn, |
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sortOrder: currentSortOrder, |
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}, |
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loaded, |
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} |
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|
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const getSortType = (schema, sortColumn) => { |
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if (!schema || !sortColumn || !schema[sortColumn]) { |
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return "string" |
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} |
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const type = schema?.[sortColumn]?.type |
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return type === "number" ? "number" : "string" |
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} |
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|
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const refresh = async () => { |
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if (schemaLoaded && !nestedProvider) { |
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fetchData( |
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dataSource, |
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schema, |
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query, |
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limit, |
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currentSortColumn, |
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currentSortOrder, |
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sortType, |
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paginate |
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) |
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} |
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} |
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|
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const fetchData = async ( |
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dataSource, |
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schema, |
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query, |
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limit, |
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sortColumn, |
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sortOrder, |
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sortType, |
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paginate |
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) => { |
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loading = true |
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if (dataSource?.type === "table") { |
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// Sanity check sort column, as using a non-existant column will prevent |
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// results coming back at all |
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const sort = schema?.[sortColumn] ? sortColumn : undefined |
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// For internal tables we use server-side processing |
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const res = await API.searchTable({ |
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tableId: dataSource.tableId, |
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query, |
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limit, |
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sort, |
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sortOrder: sortOrder?.toLowerCase() ?? "ascending", |
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sortType, |
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paginate, |
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}) |
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pageNumber = 0 |
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allRows = res.rows |
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if (res.hasNextPage) { |
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bookmarks = [null, res.bookmark] |
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} else { |
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bookmarks = [null] |
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} |
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} else if (dataSource?.type === "provider") { |
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// For providers referencing another provider, just use the rows it |
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// provides |
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allRows = dataSource?.value?.rows || [] |
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} else if (dataSource?.type === "field") { |
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// Field sources will be available from context. |
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// Enrich non object elements into object to ensure a valid schema. |
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const data = dataSource?.value || [] |
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if (Array.isArray(data) && data[0] && typeof data[0] !== "object") { |
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allRows = data.map(value => ({ value })) |
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} else { |
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allRows = data |
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} |
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} else { |
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// For other data sources like queries or views, fetch all rows from the |
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// server |
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allRows = await API.fetchDatasource(dataSource) |
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} |
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loading = false |
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loaded = true |
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} |
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|
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const getSchema = async dataSource => { |
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let newSchema = (await API.fetchDatasourceSchema(dataSource)) || {} |
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|
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// Ensure there are "name" properties for all fields and that field schema |
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// are objects |
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Object.entries(newSchema).forEach(([fieldName, fieldSchema]) => { |
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if (typeof fieldSchema === "string") { |
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newSchema[fieldName] = { |
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type: fieldSchema, |
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name: fieldName, |
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} |
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} else { |
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newSchema[fieldName] = { |
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...fieldSchema, |
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name: fieldName, |
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} |
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} |
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}) |
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schema = newSchema |
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schemaLoaded = true |
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} |
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|
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const nextPage = async () => { |
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if (!hasNextPage || !internalTable) { |
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return |
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} |
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const sort = schema?.[currentSortColumn] ? currentSortColumn : undefined |
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const res = await API.searchTable({ |
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tableId: dataSource?.tableId, |
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query, |
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bookmark: bookmarks[pageNumber + 1], |
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limit, |
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sort, |
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sortOrder: currentSortOrder?.toLowerCase() ?? "ascending", |
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sortType, |
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paginate: true, |
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}) |
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pageNumber++ |
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allRows = res.rows |
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if (res.hasNextPage) { |
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bookmarks[pageNumber + 1] = res.bookmark |
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} |
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} |
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|
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const prevPage = async () => { |
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if (!hasPrevPage || !internalTable) { |
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return |
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} |
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const sort = schema?.[currentSortColumn] ? currentSortColumn : undefined |
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const res = await API.searchTable({ |
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tableId: dataSource?.tableId, |
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query, |
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bookmark: bookmarks[pageNumber - 1], |
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limit, |
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sort, |
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sortOrder: currentSortOrder?.toLowerCase() ?? "ascending", |
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sortType, |
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paginate: true, |
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}) |
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pageNumber-- |
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allRows = res.rows |
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} |
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const addQueryExtension = (key, extension) => { |
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if (!key || !extension) { |
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return |
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} |
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queryExtensions = { ...queryExtensions, [key]: extension } |
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} |
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|
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const removeQueryExtension = key => { |
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if (!key) { |
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return |
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} |
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const newQueryExtensions = { ...queryExtensions } |
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delete newQueryExtensions[key] |
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queryExtensions = newQueryExtensions |
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} |
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const extendQuery = (defaultQuery, extensions) => { |
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const extensionValues = Object.values(extensions || {}) |
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let extendedQuery = { ...defaultQuery } |
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extensionValues.forEach(extension => { |
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Object.entries(extension || {}).forEach(([operator, fields]) => { |
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extendedQuery[operator] = { |
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...extendedQuery[operator], |
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...fields, |
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} |
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}) |
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}) |
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if (JSON.stringify(query) !== JSON.stringify(extendedQuery)) { |
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query = extendedQuery |
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} |
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} |
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</script> |
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|
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<div use:styleable={$component.styles} class="container"> |
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<Provider {actions} data={dataContext}> |
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{#if !loaded} |
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<div class="loading"> |
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<ProgressCircle /> |
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</div> |
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{:else} |
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{#if $component.emptyState} |
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<Placeholder /> |
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{:else} |
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<slot /> |
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{/if} |
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{#if paginate && internalTable} |
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<div class="pagination"> |
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<Pagination |
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page={pageNumber + 1} |
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{hasPrevPage} |
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{hasNextPage} |
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goToPrevPage={prevPage} |
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goToNextPage={nextPage} |
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/> |
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</div> |
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{/if} |
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{/if} |
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</Provider> |
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</div> |
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|
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<style> |
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.container { |
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display: flex; |
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flex-direction: column; |
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justify-content: flex-start; |
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align-items: stretch; |
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} |
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.loading { |
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display: flex; |
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flex-direction: row; |
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justify-content: center; |
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align-items: center; |
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height: 100px; |
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} |
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.pagination { |
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display: flex; |
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flex-direction: row; |
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justify-content: flex-end; |
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align-items: center; |
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margin-top: var(--spacing-xl); |
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} |
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</style> |
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