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acp

Data-agnostic admin interface generator for CRUD applications

  • 0.0.1-alpha
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Admin Control Panel Build Status

Data-agnostic admin interface generator for CRUD applications

Note from Sam: This idea exists almost totally in concept. There is alpha code being written, but it's very rudimentary at this point and is not guaranteed to work at all. I've published to NPM only so that the name is reserved.

Abstract

The problem with crud apps is they are all are basically the same, yet we find it necessary to always rewrite the same code over and over. We have a set of requirements that remain relatively constant:

  • Views Types
    • Summary (Dashboard) view of data for graphing or general display
    • Unordered List-view (or table) of items in a collection
    • Ordred list-view (or table) of items in a collection for sorting
    • Log views (uneditable display of entries)
    • Insert/update Item view within a collection
  • Functionality
    • View all collections in appropriate view types
    • Validation of data prior to database
      • Deny badly formed data (email addresses must have an "@" sign)
      • Deny duplicate entries (i.e. duplicate username fields)
      • Deny baed upon custom, applicaiton-specific criteria
    • Pagination
    • Filter/Search
    • Form controls in editing views

In addition, we always have data coming in from somewhere. Sometimes it's all from a database, sometimes it's from flat files, and even sometimes it's from the network. The problem with other frameworks is they are all dependent (or completely revolve around) on one type of data retrieval, usually a database.

Requirements

  • node >= 0.8.0
  • express >= 4.x.x (if using with existing app)

Installation

npm install acp

Usage

Basic

var acp = require('acp');
var adm = acp();

adm.listen(3000); // identical to express's app.listen()

With an existing express app

Because acp is an express application, we can simply mount it on top of another application currently being set up. This allows you to write your own custom user-facing front-end and acp to mange your data behind.

var adm = acp();
var app = express();

// ...

app.use('/admin', adm); // mount on "admin"

app.listen(3000); // do not listen with adm

Define Collections

A collection is any set of data that you wish to manage. You can pull it from your database, flat files, remote systems, etc.

var acp = require('acp');
var adm = acp();

var userCollection = adm.define('Users', {
  primaryKey: 'id', // defaults to 'id'
  mount: 'auto', // defaults to 'auto. Mounts CRUD pages on url-safe version of the collection name
  create: createUser,// function(record, cb) , cb(err, record),
  readOne: getOneUser,// function ( primaryKey ),
  read: getUsers, // function( { start: 0, limit: 10 }),
  update: updateUser, // function ( primaryKey, record ),
  delete: deleteUser, // function ( primaryKey | record ), cb(Error err, bool deleted)
  count: countUsers, // function (cb), cb(Error err, number count),
  fields: {
    id: { type: 'auto', primary: true  }, // auto_int sets nice defaults
    slug: { type: 'string', filter: [ ACP.Filter.urlSafe,  },
    name: { type: 'string', validate: function (n) {
      return /[a-z0-9_\-]{4,10}/i.test(n);
    }},
    email: { type: 'string', validate: [ ACP.Validate.email, function (email, next) { // validate can take an array
      db.query('SELECT * FROM users WHERE email = ?', [ email ], function (err, rows) {
        if (err) throw err;
        next( !rows.length );
      });
    }]}
  }
});

adm.listen(3000);

Arbitrary Page

var acp = require('acp');
var admin = acp();

// same arguments as .define()
admin.page('Dashboard', {
  mount: '/',
  widgets: [      // table of widgets
    [w1, w2, w3],
    [w4, w5]
  ]
});

API

Class ACP

This is the main class of the Admin Control Panel Interface.

Extends EventEmiter

ACP.define(name, options)

Defines a collection of data to keep track of

  • name String: Name of the collection, usually pular
  • options Object:
    • primaryKey String: Field name of the primary key.
    • disableCrud Boolean: (optional) Disable crud functionality? default: false
    • mount String: (optional) 'auto' to mount on root with generated slug (default), '/routname' otherwise.
    • orderedBy String: (optional) Field name to order by if ordered list. false or null otherwise. Default: false
    • create Function: callback to store a new record. Params: record, callback(err, record)
    • update Function: callback to update a record. Params: record, callback (err, record)
    • readOne Function: callback to read one record. Params: primaryKey, callback(err, record)
    • read Function: callback to get the collection. Params: filter Array< ACP.Filter >, callback(err, recs)
    • delete Function callback to delete a record. Params: primaryKey, callback(err, deleted?)
    • count Function callback to count all records. Params: Array<ACP.Filter>, callback(err, count)
    • fields Array<ACP.Field>: Field List
ACP.page(name, options)
  • name String: Name of the page
  • options Object:
    • mount String: (optional) 'auto' to mount on root with generated slug (default), '/routname' otherwise.
    • widgets Array< Array<ACP.Widget> >: Widget table. Outer Array: Rows; inner Array: Columns

Class ACP.Filter

Plain object.

  • field_name Object:
    • eq Mixed: Returned values must be equal.
    • ne Mixed: Returned values must not be equal
    • gt Mixed: Returned values must be greater than
    • lt Mixed: Returned values must be less than
    • gte Mixed: Returned values must be greater than or equals
    • lte Mixed: Returns values must be less than or equals

For example:

{ email: { ne: 'user@example.com '} }

Class ACP.Field

Is just a plain object with the following properties:

  • type String: 'auto', 'number', 'string', 'text', 'bool', 'datetime', 'date'
  • primary Boolean: Is primary key? Default: false. Overridden if primaryKey is set in collection
  • editable Boolean: Can the user edit this field?
  • filter Function|Array: Filter (modify values) of the record
  • validate Function|Array: Validate a field. performed AFTER filters
  • options Array|Plain Object: (Optional) if this is a dropdown/radio/checkbox list, any
  • input Flag: ACP.TEXT, ACP.PASSWORD, ACP.EMAIL, ACP.DROPDOWN, ACP.DROPDOWN_MULI, ACP.DATE_PICKER, ACP.DATETIME_PICKER, ACP.RADIO, ACP.CHECKBOX

Class ACP.Widget

Plain object with properties:

  • size Number: 1-12, grid width. Default: 3
  • template String: Either a built in template or user-defined custom path
  • read Function: Callback to read data to populate the widget width
  • title String: Widget title

Class ACP.Filter

Contains the functions to validate automatically

  • ACP.Filter.urlSafe: Makes a URL safe string (RFC 3986)
  • ACP.Filter.slug: Makes the string into a clean URL-safe sting [a-z0-9-_]
  • ACP.Filter.boolean: Converts strings from s "1" or "0" into true boolean values
  • ACP.Filter.datetime: Parses the date to an ISO 8601 compliant string
  • ACP.Filter.jsDate: Turns field into a JavaScript Date object

Class ACP.Validate

Contains the functions to validate automatically

  • ACP.Validate.email: Validates an email
  • ACP.Validate.url: Validates a URL
  • ACP.Validate.foreignKey(collectionName): Validates that there exists a primary key in the collection
  • ACP.Validate.unique: Validates that there are no records with the same value in this field

Concepts

Data Agnostic

When you create a collection, you specify where the data comes from, how it is inserted, how it is updated, and what validations need to take place. There are validation macros you can use for extremely common validations, such as email addresses, url-safe strings, and checking for duplicates in other models. You may also specify filters which take data pre-validation and operate on it.

Reusable interfaces

You don't have to write your own views. You specify where and when you want things to appear and it just makes it for you.

Built with express

To make hooking it into your stack easier, it is made to either piggy-back off of your current express application or you can specify to run it standalone.

Security

Because this is going to give a user a one-stop-shop for mangling the database, we wanted to ensure only the people you give access will have access. There are few layers of security we've added on:

  • Specify what session data must be set before access
  • Optionally enable "reauth" if the user hasn't been active within a specified amount of time
  • Session keys in the URL as query vars for additional session validation
  • Referrer checking

License

The MIT License

Keywords

FAQs

Package last updated on 11 Aug 2014

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