如何根据状态变化更改Fomik数组字段值

Question

我正在将formik ArrayField用于表单。表单逻辑如下：

initialValues={{ name: '', group: false, users: [], channels: [] }}

channels: []是一个对象数组，如下所示：channels: [{name: "", users: []}]

使用我当前的代码，它可以正常工作，但是有一个问题。例如，如果我的users: []中包含以下值：

[{key: '1', label: "John doe"}, {key: '2', label: 'Alex Andrew'}]

以及我的channels: [ users: [{key: '1', label: "John doe"}, {key: '2', label: 'Alex Andrew'}] ]

没有问题。频道用户仅包含来自全局用户数组的项目，但是例如，如果某个项目已从全局users[]中删除，并且该删除的项目存在于我的频道中：[users: [] ]，则应删除该项目。 / p>

示例：

users: [{key: '1', label: "John doe"}]
channels: [ users: [{key: '1', label: "John doe"}, {key: '2', label: 'Alex Andrew'}]

{key: '2', label: 'Alex Andrew'}项目应从通道数组中删除

我该怎么做？

代码：

class CreateChannelGroup extends Component<CreateChannelGroupProps, CreateChannelGroupState> {
  render() {
    const { onShowModal, showModal, getAllWorkspaceUsersStatus, users } = this.props;
    return (
      <div>
        <Formik
          initialValues={{ name: '', group: false, users: [], channels: [] }}
          // validationSchema={CreateWorkspaceSchema}
          onSubmit={(values: FormikValues) => {
            console.log(values)
          }}
        >
          {({
            values,
            errors,
            touched,
            handleChange,
            handleSubmit,
            setFieldValue,
          }) =>
            <Modal
              title="Create a channel or group"
              visible={showModal}
              onOk={handleSubmit}
              okButtonProps={{ htmlType: "submit" }}
              onCancel={onShowModal}
              okText='Create'
            >
              <Spin spinning={getAllWorkspaceUsersStatus === ProgressStatus.InProgress}>
                <Form onSubmit={handleSubmit}>
                  <div style={{ margin: "10px 0px" }}>
                    <Input
                      placeholder="name"
                      type="text"
                      name="name"
                      onChange={handleChange}
                      value={values.name}
                      prefix={<Icon type="user" style={{ color: 'rgba(0,0,0,.25)' }} />}
                      suffix={
                        <Tooltip title="This name will be used a group channel name">
                          <Icon type="info-circle" style={{ color: 'rgba(0,0,0,.45)' }} />
                        </Tooltip>
                      }
                    />
                  </div>
                  <div style={{ margin: "10px 0px" }}>
                    <Select
                      mode="multiple"
                      labelInValue
                      value={values.users}
                      placeholder="User email"
                      onChange={(value, option: any) => {
                        let values = value.map((val: any, index: number) => ({ key: option[index].key, label: val.label }))
                        setFieldValue(`users`, values)
                      }}
                      style={{ width: '100%' }}
                    >
                      {users && users.length ? users.map(user => (
                        <Option key={user.id}>{user.user.firstName + ' ' + user.user.lastName}</Option>
                      )) : null}
                    </Select>

                  </div>
                  <div style={{ margin: "10px 0px" }}>
                    <Checkbox onChange={handleChange} name="group" value={values.group}>This is a channel group</Checkbox>
                  </div>
                  <FieldArray
                    name="channels"
                    render={arrayHelpers => (
                      <div>
                        <Form.Item>
                          {values.channels && values.channels.length >= 1 ? (
                            values.channels.map((channel: any, index) => (
                              <div key={index} style={{ padding: "10px", border: "1px solid #e8e8e8", borderRadius: "2px", margin: "10px 0px" }}>
                                <div style={{ display: "flex", justifyContent: "flex-end" }}>
                                  <Icon type="delete" onClick={() => arrayHelpers.remove(index)} style={{ color: 'rgba(0,0,0,.45)' }} />
                                </div>
                                <Input
                                  placeholder="name"
                                  type="text"
                                  name={`channels[${index}].name`}
                                  onChange={handleChange}
                                  value={channel.name}
                                  prefix={<Icon type="user" style={{ color: 'rgba(0,0,0,.25)' }} />}
                                  suffix={
                                    <Tooltip title="This name will be used a group channel name">
                                      <Icon type="info-circle" style={{ color: 'rgba(0,0,0,.45)' }} />
                                    </Tooltip>
                                  }
                                />
                                <Select
                                  mode="multiple"
                                  labelInValue
                                  value={channel.users}
                                  placeholder="User email"
                                  notFoundContent={null}
                                  onChange={(value, option: any) => {
                                    let values = value.map((val: any, index: number) => ({ key: option[index].key, label: val.label }))
                                    setFieldValue(`channels[${index}].users`, values)
                                  }}
                                  style={{ width: '100%' }}
                                >
                                  {values.users && values.users.length ? values.users.map((user: any) => (
                                    <Option key={user.key} value={user.label}>{user.label}</Option>
                                  )) : null}
                                </Select>
                              </div>
                            ))
                          ) : null}
                          {values.group ? <Button size="small" onClick={() => arrayHelpers.push({ name: '', users: [] })}> Add a channel </Button> : null}
                        </Form.Item>
                      </div>
                    )}
                  />
                </Form>
              </Spin>
            </Modal>
          }
        </Formik>
      </div>
    );
  }
}

export default CreateChannelGroup;