Write 'move students' functionality in React

apps/i18n/common/en_us.json

@@ -646,6 +646,7 @@
   "missingRequiredBlocksErrorMsg": "Not quite. You have to use a block you aren’t using yet.",
   "more": "More",
   "moreInfo": "More info.",
+  "moveStudents": "Move students",
   "myCourses": "My Courses",
   "myProjects": "My Projects",
   "name": "Name",

apps/src/templates/manageStudents/MoveStudents.jsx

@@ -0,0 +1,225 @@
+import React, {Component, PropTypes} from 'react';
+import i18n from "@cdo/locale";
+import {Table, sort} from 'reactabular';
+import wrappedSortable from '../tables/wrapped_sortable';
+import {tableLayoutStyles, sortableOptions} from "../tables/tableConstants";
+import Immutable from 'immutable';
+import orderBy from 'lodash/orderBy';
+import Button from '../Button';
+import BaseDialog from '../BaseDialog';
+import DialogFooter from "../teacherDashboard/DialogFooter";
+
+const PADDING = 20;
+const TABLE_WIDTH = 300;
+const CHECKBOX_CELL_WIDTH = 50;
+
+const styles = {
+  dialog: {
+    paddingLeft: PADDING,
+    paddingRight: PADDING,
+    paddingTop: PADDING,
+    paddingBottom: PADDING
+  },
+  table: {
+    width: TABLE_WIDTH
+  },
+  checkboxCell: {
+    width: CHECKBOX_CELL_WIDTH,
+    textAlign: 'center'
+  },
+  checkbox: {
+    margin: 0
+  }
+};
+
+class MoveStudents extends Component {
+  static propTypes = {
+    studentData: PropTypes.arrayOf(
+      React.PropTypes.shape({
+        id: PropTypes.number.isRequired,
+        name: PropTypes.string.isRequired,
+      })
+    ).isRequired
+  };
+
+  state = {
+    isDialogOpen: false,
+    selectedIds: []
+  };
+
+  openDialog = () => {
+    this.setState({isDialogOpen: true});
+  };
+
+  closeDialog = () => {
+    this.setState({
+      isDialogOpen: false,
+      selectedIds: []
+    });
+  };
+
+  getStudentIds = () => {
+    return this.props.studentData.map(s => s.id);
+  };
+
+  areAllSelected = () => {
+    return Immutable.Set(this.state.selectedIds).isSuperset(this.getStudentIds());
+  };
+
+  toggleSelectAll = () => {
+    if (this.areAllSelected()) {
+      this.setState({selectedIds: []});
+    } else {
+      this.setState({selectedIds: this.getStudentIds()});
+    }
+  };
+
+  toggleStudentSelected = (studentId) => {
+    let selectedIds = [...this.state.selectedIds];
+
+    if (this.state.selectedIds.includes(studentId)) {
+      const studentIndex = selectedIds.indexOf(studentId);
+      selectedIds.splice(studentIndex, 1);
+    } else {
+      selectedIds.push(studentId);
+    }
+
+    this.setState({selectedIds});
+  };
+
+  selectedStudentHeaderFormatter = () => {
+    return (
+      <input
+        style={styles.checkbox}
+        type="checkbox"
+        checked={this.areAllSelected()}
+        onChange={this.toggleSelectAll}
+      />
+    );
+  };
+
+  selectedStudentFormatter = (_, {rowData}) => {
+    const isChecked = this.state.selectedIds.includes(rowData.id);
+
+    return (
+      <input
+        style={styles.checkbox}
+        type="checkbox"
+        checked={isChecked}
+        onChange={() => this.toggleStudentSelected(rowData.id)}
+      />
+    );
+  };
+
+  getColumns = (sortable) => {
+    return [
+      {
+        property: 'selected',
+        header: {
+          label: '',
+          format: this.selectedStudentHeaderFormatter,
+          props: {
+            style: {
+              ...tableLayoutStyles.headerCell,
+              ...styles.checkboxCell
+          }}
+        },
+        cell: {
+          format: this.selectedStudentFormatter,
+          props: {
+            style: {
+              ...tableLayoutStyles.cell,
+              ...styles.checkboxCell
+          }}
+        }
+      }, {
+        property: 'name',
+        header: {
+          label: i18n.name(),
+          props: {
+            style: {
+              ...tableLayoutStyles.headerCell
+          }},
+          transforms: [sortable]
+        },
+        cell: {
+          props: {
+            style: {
+              ...tableLayoutStyles.cell
+          }}
+        }
+      }
+    ];
+  };
+
+  getSortingColumns = () => {
+    return this.state.sortingColumns || {};
+  };
+
+  // The user requested a new sorting column. Adjust the state accordingly.
+  onSort = (selectedColumn) => {
+    this.setState({
+      sortingColumns: sort.byColumn({
+        sortingColumns: this.state.sortingColumns,
+        // Custom sortingOrder removes 'no-sort' from the cycle
+        sortingOrder: {
+          FIRST: 'asc',
+          asc: 'desc',
+          desc: 'asc'
+        },
+        selectedColumn
+      })
+    });
+  };
+
+  render() {
+    // Define a sorting transform that can be applied to each column
+    const sortable = wrappedSortable(this.getSortingColumns, this.onSort, sortableOptions);
+    const columns = this.getColumns(sortable);
+    const sortingColumns = this.getSortingColumns();
+
+    const sortedRows = sort.sorter({
+      columns,
+      sortingColumns,
+      sort: orderBy,
+    })(this.props.studentData);
+
+    return (
+      <div>
+        <Button
+          onClick={this.openDialog}
+          color={Button.ButtonColor.gray}
+          text={i18n.moveStudents()}
+        />
+        <BaseDialog
+          useUpdatedStyles
+          isOpen={this.state.isDialogOpen}
+          style={styles.dialog}
+          handleClose={this.closeDialog}
+        >
+          <Table.Provider
+            columns={columns}
+            style={styles.table}
+          >
+            <Table.Header />
+            <Table.Body rows={sortedRows} rowKey="id" />
+          </Table.Provider>
+          <DialogFooter>
+            <Button
+              text={i18n.dialogCancel()}
+              onClick={this.closeDialog}
+              color={Button.ButtonColor.gray}
+            />
+            <Button
+              text={i18n.moveStudents()}
+              onClick={() => {}}
+              color={Button.ButtonColor.orange}
+            />
+          </DialogFooter>
+        </BaseDialog>
+      </div>
+    );
+  }
+}
+
+export default MoveStudents;

apps/src/templates/manageStudents/MoveStudents.story.jsx

@@ -0,0 +1,31 @@
+import React from 'react';
+import MoveStudents from './MoveStudents';
+
+const studentData = [
+  {
+    id: 1,
+    name: 'Student A'
+  },
+  {
+    id: 3,
+    name: 'Student C'
+  },
+  {
+    id: 2,
+    name: 'Student B'
+  }
+];
+
+export default storybook => {
+  storybook
+    .storiesOf('MoveStudents', module)
+    .addStoryTable([
+      {
+        name: 'Move students dialog',
+        description: 'Ability to move students in a certain section to a different section or teacher',
+        story: () => (
+          <MoveStudents studentData={studentData} />
+        )
+      }
+    ]);
+};

apps/test/unit/templates/manageStudents/MoveStudentsTest.js

@@ -0,0 +1,93 @@
+import React from 'react';
+import {shallow} from 'enzyme';
+import {expect} from '../../../util/configuredChai';
+import MoveStudents from '@cdo/apps/templates/manageStudents/MoveStudents';
+
+const studentData = [
+  {id: 1, name: 'studentb'},
+  {id: 3, name: 'studenta'},
+  {id: 0, name: ''},
+  {id: 2, name: 'studentf'}
+];
+
+describe('MoveStudents', () => {
+  let wrapper;
+
+  beforeEach(() => {
+    wrapper = shallow(<MoveStudents studentData={studentData}/>);
+  });
+
+  describe('#openDialog', () => {
+    it('sets isDialogOpen state to true', () => {
+      wrapper.instance().openDialog();
+      expect(wrapper.instance().state.isDialogOpen).to.equal(true);
+    });
+  });
+
+  describe('#closeDialog', () => {
+    it('sets isDialogOpen state to false', () => {
+      wrapper.instance().isDialogOpen = true;
+      wrapper.instance().closeDialog();
+      expect(wrapper.instance().state.isDialogOpen).to.equal(false);
+    });
+
+    it('clears selectedIds in state', () => {
+      wrapper.instance().state.selectedIds = [1,2];
+      expect(wrapper.instance().state.selectedIds).to.have.members([1,2]);
+      wrapper.instance().closeDialog();
+      expect(wrapper.instance().state.selectedIds).to.have.members([]);
+    });
+  });
+
+  describe('#getStudentIds', () => {
+    it('returns all student ids', () => {
+      expect(wrapper.instance().getStudentIds()).to.have.members([0,1,2,3]);
+    });
+  });
+
+  describe('#areAllSelected', () => {
+    it('returns true if all student ids are in selectedIds', () => {
+      wrapper.instance().state.selectedIds = [0,1,2,3];
+      expect(wrapper.instance().areAllSelected()).to.equal(true);
+    });
+
+    it('returns false if all student ids are not in selectedIds', () => {
+      wrapper.instance().state.selectedIds = [0,1,2];
+      expect(wrapper.instance().areAllSelected()).to.equal(false);
+    });
+  });
+
+  describe('#toggleSelectAll', () => {
+    it('clears selectedIds in state if all ids are selected', () => {
+      wrapper.instance().state.selectedIds = [0,1,2,3];
+      wrapper.instance().toggleSelectAll();
+      expect(wrapper.instance().state.selectedIds).to.have.members([]);
+    });
+
+    it('adds all ids to selectedIds in state if some ids are selected', () => {
+      wrapper.instance().state.selectedIds = [0,1];
+      wrapper.instance().toggleSelectAll();
+      expect(wrapper.instance().state.selectedIds).to.have.members([0,1,2,3]);
+    });
+
+    it('adds all ids to selectedIds in state if no ids are selected', () => {
+      wrapper.instance().state.selectedIds = [];
+      wrapper.instance().toggleSelectAll();
+      expect(wrapper.instance().state.selectedIds).to.have.members([0,1,2,3]);
+    });
+  });
+
+  describe('#toggleStudentSelected', () => {
+    it('removes student id from selectedIds in state if already present', () => {
+      wrapper.instance().state.selectedIds = [1];
+      wrapper.instance().toggleStudentSelected(1);
+      expect(wrapper.instance().state.selectedIds).to.have.members([]);
+    });
+
+    it('adds student id to selectedIds in state if not already present', () => {
+      wrapper.instance().state.selectedIds = [1];
+      wrapper.instance().toggleStudentSelected(0);
+      expect(wrapper.instance().state.selectedIds).to.have.members([0,1]);
+    });
+  });
+});