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base-repos/base-data: adds a `data` method to base-methods. 100% unit test coverage and browserify-friendly lazy-caching.

adds a data method to base-methods.

• Install
• Usage
• API
• Glob patterns
• Namespacing
• History
• About

(TOC generated by verb using markdown-toc)

Install with npm:

$ npm install --save base-data

Adds a data method to base that can be used for setting, getting and loading data onto a specified object in your application.

var Base = require('base');
var data = require('base-data');

// instantiate `Base`
var base = new Base();
// add `data` as a plugin
base.use(data());

Examples

Add data:

app.data('a', 'b');
app.data({c: 'd'});
app.data('e', ['f']);
console.log(app.cache.data);
//=> {a: 'b', c: 'd', e: ['f']}

cache.data

By default, all data is loaded onto app.cache.data. This can be customized by passing the property to use when the plugin is initialized.

For example, the following set app.foo as object for storing data:

app.use(data('foo'));
app.data('a', 'b');
console.log(app.foo);
//=> {a: 'b'}

Register a data loader for loading data onto app.cache.data.

Params

• ext {String}: The file extension for to match to the loader
• fn {Function}: The loader function.

Example

var yaml = require('js-yaml');

app.dataLoader('yml', function(str, fp) {
  return yaml.safeLoad(str);
});

app.data('foo.yml');
//=> loads and parses `foo.yml` as yaml

Load data onto app.cache.data

Params

• key {String|Object}: Key of the value to set, or object to extend.
• val {any}
• returns {Object}: Returns the instance of Template for chaining

Example

console.log(app.cache.data);
//=> {};

app.data('a', 'b');
app.data({c: 'd'});
console.log(app.cache.data);
//=> {a: 'b', c: 'd'}

// set an array
app.data('e', ['f']);

// overwrite the array
app.data('e', ['g']);

// update the array
app.data('e', ['h'], true);
console.log(app.cache.data.e);
//=> ['g', 'h']

Shallow extend an object onto app.cache.data.

Params

• key {String|Object}: Property name or object to extend onto app.cache.data. Dot-notation may be used for extending nested properties.
• value {Object}: The object to extend onto app.cache.data
• returns {Object}: returns the instance for chaining

Example

app.data({a: {b: {c: 'd'}}});
app.data.extend('a.b', {x: 'y'});
console.log(app.get('a.b'));
//=> {c: 'd', x: 'y'}

Deeply merge an object onto app.cache.data.

Params

• key {String|Object}: Property name or object to merge onto app.cache.data. Dot-notation may be used for merging nested properties.
• value {Object}: The object to merge onto app.cache.data
• returns {Object}: returns the instance for chaining

Example

app.data({a: {b: {c: {d: {e: 'f'}}}}});
app.data.merge('a.b', {c: {d: {g: 'h'}}});
console.log(app.get('a.b'));
//=> {c: {d: {e: 'f', g: 'h'}}}

Union the given value onto a new or existing array value on app.cache.data.

Params

• key {String}: Property name. Dot-notation may be used for nested properties.
• array {Object}: The array to add or union on app.cache.data
• returns {Object}: returns the instance for chaining

Example

app.data({a: {b: ['c', 'd']}});
app.data.union('a.b', ['e', 'f']}});
console.log(app.get('a.b'));
//=> ['c', 'd', 'e', 'f']

Set the given value onto app.cache.data.

Params

• key {String|Object}: Property name or object to merge onto app.cache.data. Dot-notation may be used for nested properties.
• val {any}: The value to set on app.cache.data
• returns {Object}: returns the instance for chaining

Example

app.data.set('a.b', ['c', 'd']}});
console.log(app.get('a'));
//=> {b: ['c', 'd']}

Get the value of key from app.cache.data. Dot-notation may be used for getting nested properties.

Params

• key {String}: The name of the property to get.
• returns {any}: Returns the value of key

Example

app.data({a: {b: {c: 'd'}}});
console.log(app.get('a.b'));
//=> {c: 'd'}

Glob patterns may be passed as a string or array. All of these work:

app.data('foo.json');
app.data('*.json');
app.data(['*.json']);
// pass options to node-glob
app.data(['*.json'], {dot: true});

Namespacing allows you to load data onto a specific key, optionally using part of the file path as the key.

Example

Given that foo.json contains {a: 'b'}:

app.data('foo.json');
console.log(app.cache.data);
//=> {a: 'b'}

app.data('foo.json', {namespace: true});
console.log(app.cache.data);
//=> {foo: {a: 'b'}}

app.data('foo.json', {
  namespace: function(fp) {
    return path.basename(fp);
  }
});
console.log(app.cache.data);
//=> {'foo.json': {a: 'b'}}

v0.6.0

• removes renameKey option for namespacing
• replaces is-valid-instance and is-registered with is-valid-app

v0.5.0

• uses is-valid-instance and is-registered to ensure the smart plugin is registered on the correct objects.

v0.4.0

• Refactored

• adds methods to .data for getting and setting data.

v0.3.6

• adds a basic loader that only calls the JSON.parse method, if no other loaders are defined
• calls .isRegistered from base to ensure the plugin is only loaded once on an instance

• base-cli: Plugin for base-methods that maps built-in methods to CLI args (also supports methods from a… more | homepage
• base-config: base-methods plugin that adds a config method for mapping declarative configuration values to other 'base… more | homepage
• base-option: Adds a few options methods to base, like option, enable and disable. See the readme… more | homepage
• base-pipeline: base-methods plugin that adds pipeline and plugin methods for dynamically composing streaming plugin pipelines. | homepage
• base-plugins: Adds 'smart plugin' support to your base application. | homepage
• base-store: Plugin for getting and persisting config values with your base-methods application. Adds a 'store' object… more | homepage
• base: Framework for rapidly creating high quality node.js applications, using plugins like building blocks | homepage

Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.

(This project's readme.md is generated by verb, please don't edit the readme directly. Any changes to the readme must be made in the .verb.md readme template.)

To generate the readme, run the following command:

$ npm install -g verbose/verb#dev verb-generate-readme && verb

Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:

$ npm install && npm test

Jon Schlinkert

• github/jonschlinkert
• twitter/jonschlinkert

Copyright © 2017, Jon Schlinkert. Released under the MIT License.

This file was generated by verb-generate-readme, v0.6.0, on July 20, 2017.

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