Merge remote-tracking branch 'remotes/origin/feature/QQQ-26-exports-poc' into feature/sprint-7-integration

package.json

@@ -35,6 +35,7 @@
     "flatpickr": "4.6.9",
     "formik": "2.2.9",
     "html-react-parser": "1.4.8",
+    "http-proxy-middleware": "2.0.6",
     "react": "17.0.2",
     "react-chartjs-2": "3.0.4",
     "react-cookie": "4.1.1",

src/qqq/pages/entity-list/index.tsx

@@ -22,7 +22,7 @@ import Icon from "@mui/material/Icon";
 import Menu from "@mui/material/Menu";
 import MenuItem from "@mui/material/MenuItem";
 import Link from "@mui/material/Link";
-import {Alert} from "@mui/material";
+import {Alert, tableFooterClasses} from "@mui/material";
 import {
    DataGridPro,
    GridCallbackDetails,
@@ -40,7 +40,9 @@ import {
    GridToolbarContainer,
    GridToolbarDensitySelector,
    GridToolbarExport,
+   GridToolbarExportContainer,
    GridToolbarFilterButton,
+   GridExportMenuItemProps,
 } from "@mui/x-data-grid-pro";
 
 // Material Dashboard 2 PRO React TS components
@@ -99,6 +101,7 @@ function EntityList({table}: Props): JSX.Element
 
    const [buttonText, setButtonText] = useState("");
    const [tableState, setTableState] = useState("");
+   const [tableMetaData, setTableMetaData] = useState(null as QTableMetaData);
    const [, setFiltersMenu] = useState(null);
    const [actionsMenu, setActionsMenu] = useState(null);
    const [tableProcesses, setTableProcesses] = useState([] as QProcessMetaData[]);
@@ -192,11 +195,12 @@ function EntityList({table}: Props): JSX.Element
    {
       (async () =>
       {
-         const tableMetaData = await QClient.loadTableMetaData(tableName);
+         const newTableMetaData = await QClient.loadTableMetaData(tableName);
+         setTableMetaData(newTableMetaData);
          if (columnSortModel.length === 0)
          {
             columnSortModel.push({
-               field: tableMetaData.primaryKeyField,
+               field: newTableMetaData.primaryKeyField,
                sort: "desc",
             });
             setColumnSortModel(columnSortModel);
@@ -206,8 +210,8 @@ function EntityList({table}: Props): JSX.Element
 
          const count = await QClient.count(tableName, qFilter);
          setTotalRecords(count);
-         setButtonText(`new ${tableMetaData.label}`);
+         setButtonText(`new ${newTableMetaData.label}`);
-         setTableLabel(tableMetaData.label);
+         setTableLabel(newTableMetaData.label);
 
          const columns = [] as GridColDef[];
 
@@ -236,10 +240,10 @@ function EntityList({table}: Props): JSX.Element
             rows.push(Object.fromEntries(record.values.entries()));
          });
 
-         const sortedKeys = [...tableMetaData.fields.keys()].sort();
+         const sortedKeys = [...newTableMetaData.fields.keys()].sort();
          sortedKeys.forEach((key) =>
          {
-            const field = tableMetaData.fields.get(key);
+            const field = newTableMetaData.fields.get(key);
 
             let columnType = "string";
             switch (field.type)
@@ -268,7 +272,7 @@ function EntityList({table}: Props): JSX.Element
                width: 200,
             };
 
-            if (key === tableMetaData.primaryKeyField)
+            if (key === newTableMetaData.primaryKeyField)
             {
                column.width = 75;
                columns.splice(0, 0, column);
@@ -369,6 +373,83 @@ function EntityList({table}: Props): JSX.Element
       })();
    }
 
+   interface QExportMenuItemProps extends GridExportMenuItemProps<{}>
+   {
+      format: string;
+   }
+
+   function ExportMenuItem(props: QExportMenuItemProps)
+   {
+      const {format, hideMenu} = props;
+
+      return (
+         <MenuItem
+            disabled={totalRecords === 0}
+            onClick={() =>
+            {
+               ///////////////////////////////////////////////////////////////////////////////
+               // build the list of visible fields.  note, not doing them in-order (in case //
+               // the user did drag & drop), because column order model isn't right yet     //
+               // so just doing them to match columns (which were pKey, then sorted)        //
+               ///////////////////////////////////////////////////////////////////////////////
+               const visibleFields: string[] = [];
+               columns.forEach((gridColumn) =>
+               {
+                  const fieldName = gridColumn.field;
+                  // @ts-ignore
+                  if (columnVisibilityModel[fieldName] !== false)
+                  {
+                     visibleFields.push(fieldName);
+                  }
+               });
+
+               ///////////////////////
+               // zero-pad function //
+               ///////////////////////
+               const zp = (value: number): string => (value < 10 ? `0${value}` : `${value}`);
+
+               //////////////////////////////////////
+               // construct the url for the export //
+               //////////////////////////////////////
+               const d = new Date();
+               const dateString = `${d.getFullYear()}-${zp(d.getMonth())}-${zp(d.getDate())} ${zp(d.getHours())}${zp(d.getMinutes())}`;
+               const filename = `${tableMetaData.label} Export ${dateString}.${format}`;
+               const url = `/data/${tableMetaData.name}/export/${filename}?filter=${encodeURIComponent(JSON.stringify(buildQFilter()))}&fields=${visibleFields.join(",")}`;
+
+               //////////////////////////////////////////////////////////////////////////////////////
+               // open a window (tab) with a little page that says the file is being generated.    //
+               // then have that page load the url for the export.                                 //
+               // If there's an error, it'll appear in that window.  else, the file will download. //
+               //////////////////////////////////////////////////////////////////////////////////////
+               const exportWindow = window.open("", "_blank");
+               exportWindow.document.write(`<html lang="en">
+                  <head>
+                     <style>
+                        * { font-family: "Roboto","Helvetica","Arial",sans-serif; }
+                     </style>
+                     <title>${filename}</title>
+                     <script>
+                        setTimeout(() => 
+                        {
+                           window.location.href="${url}";
+                        }, 1);
+                     </script>
+                  </head>
+                  <body>Generating file <u>${filename}</u> with ${totalRecords.toLocaleString()} records...</body>
+               </html>`);
+
+               ///////////////////////////////////////////
+               // Hide the export menu after the export //
+               ///////////////////////////////////////////
+               hideMenu?.();
+            }}
+         >
+            Export
+            {` ${format.toUpperCase()}`}
+         </MenuItem>
+      );
+   }
+
    function CustomToolbar()
    {
       return (
@@ -376,7 +457,10 @@ function EntityList({table}: Props): JSX.Element
             <GridToolbarColumnsButton />
             <GridToolbarFilterButton />
             <GridToolbarDensitySelector />
-            <GridToolbarExport />
+            <GridToolbarExportContainer>
+               <ExportMenuItem format="csv" />
+               <ExportMenuItem format="xlsx" />
+            </GridToolbarExportContainer>
             <div>
                {
                   selectFullFilterState === "checked" && (

src/setupProxy.js

@@ -0,0 +1,39 @@
+/*
+ * QQQ - Low-code Application Framework for Engineers.
+ * Copyright (C) 2021-2022.  Kingsrook, LLC
+ * 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
+ * contact@kingsrook.com
+ * https://github.com/Kingsrook/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/////////////////////////////////////////////////////////////////////////////////////
+// this file "magically" works with http-proxy-middleware.                         //
+// Most API calls to the qqq backend (e.g., through QController) do NOT go through //
+// the React Router.  However, exports do (presumably because they are full-       //
+// page style requests, not ajax/fetches), so they need specific proxy config.     //
+/////////////////////////////////////////////////////////////////////////////////////
+const {createProxyMiddleware} = require("http-proxy-middleware");
+
+module.exports = function (app)
+{
+   app.use(
+      "/data/*/export/*",
+      createProxyMiddleware({
+         target: "http://localhost:8000",
+         changeOrigin: true,
+      }),
+   );
+};