react-jsonschema-form-pagination

react-jsonschema-form-pagination

Features

• Separation of huge schemas into navs
• Nested nav - you can have any number of navs nested inside your form
• Repeated fields - you can use the same field in multiple navs, filling it only once
• Does not conflict with other extensions of Mozilla project

Installation

Install react-jsonschema-form-pagination by running:

npm install --s react-jsonschema-form-pagination

or

yarn add react-jsonschema-form-pagination

Usage

FormWithPagination is a wrapper for Mozilla's JSON Schema Form that allows a schema to be displayed into multiple Bootstrap navs. This allows users to see a subset of the schema on each nav.

Use this project as you would use Mozilla's JSON Schema Form (see their documentation), but to leverage the nav features just provide these extra parameters:

• In the uiSchema object, use the new nav and navConf property for additional nav customization

To show case use of the pagination project, we'll be using following schema as a base

const schema = {
  title: "A registration form",
  description: "A simple form example.",
  type: "object",
  properties: {
    firstName: { type: "string" },
    lastName: { type: "string" },
    age: { type: "integer" },
    phone: { type: "string" },
    nickName: { type: "string" }
  }
};

Single level

Let's say we have only 1 level of tabs main and other. We can do it like this:

import applyNavs from "react-jsonschema-form-pagination";
import Form from "react-jsonschema-form";

const uiSchema = {
  firstName: {
    "nav": "main"
  },
  lastName: {
    "nav": "main"
  },
  age: {
    "nav": "main"
  },
  phone: {
    "nav": "main"
  },
  nickName: {
    "nav": "other"
  },
};

let FormWithPagination = applyNavs(Form);

render((
  <FormWithPagination
    schema={schema}
    uiSchema={uiSchema}
  />
), document.getElementById("app"));

When rendered this configuration will show 2 tabs

• main nav with firstName, lastName, age and phone fields
• other nav with nickName field

Multi nav levels

Let's say we now want to have main nav divided in 2 more tabs general(lastName and age) and other ( with phone). This is how uiSchema should look like in order to do that :

const uiSchema = {
  firstName: {
    "nav": "main"
  },
  lastName: {
    "nav": [ "main", "general" ]
  },
  age: {
    "nav": [ "main", "general" ]
  },
  phone: {
    "nav": [ "main", "other" ]
  },
  nickName: {
    "nav": "other"
  }
};

When rendered this configuration will show 2 tabs

• main nav with firstName, and 2 sub navs
  • general with lastName and age fields
  • other with phone field
• other nav with nickName field

Default level

When you don't specify nav, the field will be shown above the navs.

For example, if we go back to single level example, but we want to always see firstName shown above the nav navigation. Here is how we can do this:

const uiSchema = {
  firstName: {},
  lastName: {
    "nav": "main"
  },
  age: {
    "nav": "main"
  },
  phone: {
    "nav": "main"
  },
  nickName: {
    "nav": "other"
  },
};

When rendered this configuration will show 2 navs and firstName above the fields

• main nav with lastName, age and phone fields
• other nav with nickName field

Field aliases in different tabs

One of the requirements for this project was to support same field on different tabs, in order to do that you can specify field alias in uiSchema. Field alias is basically a field UI configuration, that will be used instead of original field in specified nav. Aliases can be nested as regular fields.

For example, if we want to show firstName in both tabs main and other.

const uiSchema = {
  firstName: {
    "nav": "main"
  },
  firsNameAlias: {
    "nav": "other"
  },
  lastName: {
    "nav": "main"
  },
  age: {
    "nav": "main"
  },
  phone: {
    "nav": "main"
  },
  nickName: {
    "nav": "other"
  },
  navConf: {
      aliases: {
        firstName: "firsNameAlias"
      }
  }
};

With this configuration pagination will put firstName in both main and other tabs.

navConf.aliases is a simple object with

• keys - as original schema field names
• values - a string, or an array of strings, with uiSchema alias names

You can specify either single alias or as many aliases as you wish with an array.

Configuring nav presentation

Default presentation

By default nav names are the same as nav in uiSchema.

For example:

const uiSchema = {
  firstName: {
    "nav": "General"
  },
  lastName: {
    "nav": "General"
  },
  age: {
    "nav": "General"
  },
  phone: {
    "nav": "General"
  },
  nickName: {
    "nav": "General"
  },
};

This schema would have a single nav General, which might be good enough for your case.

Let's say you want different name and also add an icon to the nav, here is how you can do that

const uiSchema = {
    firstName: {
      "nav": "g"
    },
    lastName: {
      "nav": "General"
    },
    age: {
      "nav": "General"
    },
    phone: {
      "nav": "General"
    },
    nickName: {
      "nav": "General"
    },
    navConf:{
        navs: [
          {
            nav: "General",
            name: "User",
            icon: "glyphicons glyphicons-users"
          } 
        ]
    }
}

In this case there will be a User nav with glyphicons-users icon.

By default name and icon are the only configuration for nav presentation, but you can customize Nav presentation as you wish with CustomNavs.

You can also

Custom navs

If you want to have a custom navs instead of nav-pills used by default, you can provide Navs component, when you call applyPagination

import applyPagination from "react-jsonschema-form-pagination";
import Form from "react-jsonschema-form";
import CustomNavs from "./CustomNavs";


let FormWithPagination = applyPagination(Form, CustomNavs);

CustomNavs will receive 3 properties

• navs available navs at the layer
  • links all available nav links (which is navConf.navs configurations and isActive flag)
• onNavChange - callback on nav selection change

Look at pagination for more details.

For example, if we want to use NavBar to navigate in paginated form, we can define CustomNav like this

import React from "react";
import { GENERIC_NAV } from "react-jsonschema-form-pagination/lib/utils";

function CustomNavs({ navs: { links }, onNavChange }) {
  let relLinks = links.filter(({ nav }) => nav !== GENERIC_NAV);
  return (
    <nav className="navbar navbar-default">
      <div className="container-fluid">
        <div className="collapse navbar-collapse">
          <ul className="nav navbar-nav">
            {relLinks.map(({ nav, name, icon, isActive }, i) => (
              <li key={i} onClick={() => onNavChange(nav)} className={isActive ? "active" : null}>
                <a>
                  {icon && <span className={icon} aria-hidden="true"/>}
                  &nbsp;{name || nav}
                </a>
              </li>
            ))}
          </ul>
        </div>
      </div>
    </nav>
  );
}

export default CustomNavs;

Nav ordering

By default all tabs rendered in order they appear in uiSchema, since it's a primary source of layer reference, however it's not reliable way to do so. You can override natural ordering with navConf.order property in uiSchema, consisting of ordered array of nav's. It works the same way as ui:order in mozilla project.

For example, in order to have

const uiSchema = {
  navConf: {
    order: [ "main", "sub", "other" ]
  },
  age: {
    "nav": "sub"
  },
  phone: {
    "nav": "main"
  },
  firstName: {
    "nav": "main"
  },
  lastName: {
    "nav": "main"
  },
  nickName: {
    "nav": "other"
  },
};

In this configuration, although sub nav appears first in uiSchema, main will be the first nav available for selection.

Handling errors

To allow proper error management navigation component adds activeNav to all the errors, so that you can add navigation to invalid data on validation errors.

You can use activeNav in errors in 2 ways

• transformErrors, that would append activeNav to error message, stack or both
• ErrorList that will get errors after transformation.

Migration

 - From 0.3 - Navs can only be oriented horizontally, vertical orientation was removed to support better error handling

Contribute

• Issue Tracker: github.com/RxNT/react-jsonschema-form-pagination/issues
• Source Code: github.com/RxNT/react-jsonschema-form-pagination

Support

If you are having issues, please let us know.

License

The project is licensed under the Apache-2.0 license.