json-sfl v1.0.8

json-sfl

Use structure query language to filter json object. But it`s not a query system like mysql, just a filter condition. You feed it with a filter model and a json isntance object, it will spit out true or false, depend on the json object is matched by the filter model or not.

Installation

npm install json-sfl --save

Quick Usage

const B = require('../../builder/index'); // Builder
const A = require('../../analysis/index'); // Analysis

//single equal
let queryModel = B.E.Equal('contact.phone', '110110110110');

//multi equal with and
let queryModel2 = B.R.And([
    B.E.Equal('name', 'leo'),
    B.E.Equal('age', 23)
 ]);

if (A.test(queryModel, instance)) {
	console.log('yes, it is')
} else {
	console.log('no, it isn`t')
}

Document

• Builder: is the a class for building structure filtel model
  • Node Type: node is a sub filter model, node model type decide the analysis how to check the value
    • Equation:
      • Equal: single specifics value equal expression
      • In: multi specifics values include expression
      • InLike: multi regex values include expression
      • Between
      • Smaller
      • Bigger
    • Relation
      • And: node in the and relation should all true
      • Or: node in the or relation should one true at least, as a result reuturn true
• Analysis: is the handler to check json object whether matched the filter model

more usage can see test file