ztw-indexedDB

Install

  npm install ztw-indexeddb

Import to your project

A simple example to use it:

EXAMPLE

  import {IndexDB} from 'ztw-indexeddb';
  const db= new IndexDB('myDataBase',{version:1});
 
  db.init([
    
    {name:'article',opts:{keyPath:'title'}},
    {name:'reply',opts:{keyPath:'userName'}}
    
  ]).then(collections=>{
   
    collections['article'].insert({...},(err)=>{...});
    collections['article'].findOne('titleKey',(err,doc)=>{...})
    
  })

You can even use it by this way:

EXAMPLE

  ...
  let collections;
  
  db.init([...]).then(_colls=>collections=_colls)
  
  element.onclick=()=>collections['modelName'].findOne(...);
  

It works well,because ztw-indexeddb will regain transaction if the objectStore transaction is closed;

But some situation , you don't kown if the db is already initialized. now you can use method use even in all cases:

EXAMPLE:

  const db=new IndexDB(...);
  
  db.init([{name:'modelName',opts:{keyPath:'key'}}]);
  
  db.use('modelName').then(model=>{
    model.findMany([...],(err,data)=>{});
    model.upsert({...},(err)=>{});
  })

API

collectionOpts:

• keyPath : string
• type? : 'capped'|'index'
• limit? : number;

type=='capped' must specify

• index? : string;

type=='index' must specify

collectionMethod:

method	arguments
findOne	(keyPath,cb)
findMany	([keyPath],cb)
insert	(document,cb)
remove	(keyPath,cb)
removeAll	(cb)
upsert	(partialDoc or fullDoc,cb)
size	(cb)
purePut	(fullDoc,cb)
useCursor	(cursorOpts,cb)
genKey	(obj:{}):string
...	include all objectStore method

indexCollectionMethod

• getList