Package Exports

w-orm-mdb

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (w-orm-mdb) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

w-orm-mdb

An object of operator for access mdb database in nodejs, like a simple ORM.

Documentation

To view documentation or get support, visit docs.

Installation

Using npm(ES6 module):

Note: w-orm-mdb depends on node-adodb and w-orm-reladb.

npm i w-orm-mdb

Example for access mdb by js settings

Link: [dev source code]

import wo from 'w-orm-mdb'
import fs from 'fs'


let username = 'username'
let password = 'password'
let opt = {
    url: `mdb://${username}:${password}`, //username:password
    db: 'worm',
    cl: 'users',
    fdModels: './models',
    // modelType: 'js', //default
    // autoGenPK: false,
    storage: './worm.mdb',
}

//因worm.mdb可能被修改, 先刪除再由worm_def.mdb複製一份來用
if (fs.existsSync(opt.storage)) {
    fs.unlinkSync(opt.storage)
    fs.copyFileSync('./worm_def.mdb', opt.storage)
}

let rs = [
    {
        id: 'id-peter',
        name: 'peter',
        value: 123,
    },
    {
        id: 'id-rosemary',
        name: 'rosemary',
        value: 123.456,
    },
    {
        id: '',
        name: 'kettle',
        value: 456,
    },
]

let rsm = [
    {
        id: 'id-peter',
        name: 'peter(modify)'
    },
    {
        id: 'id-rosemary',
        name: 'rosemary(modify)'
    },
    {
        id: '',
        name: 'kettle(modify)'
    },
]

async function test() {
    //測試mdb


    //w
    let w = wo(opt)


    //on
    w.on('change', function(mode, data, res) {
        console.log('change', mode)
    })
    w.on('error', function(err) {
        console.log('error', err)
    })


    //delAll
    await w.delAll()
        .then(function(msg) {
            console.log('delAll then', msg)
        })
        .catch(function(msg) {
            console.log('delAll catch', msg)
        })


    //insert
    await w.insert(rs)
        .then(function(msg) {
            console.log('insert then', msg)
        })
        .catch(function(msg) {
            console.log('insert catch', msg)
        })


    //save
    await w.save(rsm, { autoInsert: false })
        .then(function(msg) {
            console.log('save then', msg)
        })
        .catch(function(msg) {
            console.log('save catch', msg)
        })


    //select all
    let ss = await w.select()
    console.log('select all', ss)


    //select
    let so = await w.select({ id: 'id-rosemary' })
    console.log('select', so)


    //select by $and, $gt, $lt
    let spa = await w.select({ '$and': [{ value: { '$gt': 123 } }, { value: { '$lt': 200 } }] })
    console.log('select by $and, $gt, $lt', spa)


    //select by $or, $gte, $lte
    let spb = await w.select({ '$or': [{ value: { '$lte': -1 } }, { value: { '$gte': 200 } }] })
    console.log('select by $or, $gte, $lte', spb)


    //select by $or, $and, $ne, $in, $nin (access mdb not support)
    let spc = await w.select({ '$or': [{ '$and': [{ value: { '$ne': 123 } }, { value: { '$in': [123, 321, 123.456, 456] } }, { value: { '$nin': [456, 654] } }] }, { '$or': [{ value: { '$lte': -1 } }, { value: { '$gte': 400 } }] }] })
    console.log('select by $or, $and, $ne, $in, $nin', spc)


    //select by regex
    let sr = await w.select({ name: { $regex: 'PeT', $options: '$i' } })
    console.log('selectReg', sr)


    //del
    let d = []
    if (ss) {
        d = ss.filter(function(v) {
            return v.name !== 'kettle'
        })
    }
    await w.del(d)
        .then(function(msg) {
            console.log('del then', msg)
        })
        .catch(function(msg) {
            console.log('del catch', msg)
        })


}
test().catch((err) => console.log('err:', err))
// change delAll
// delAll then { n: 0, ok: 1 }
// change insert
// insert then { n: 3, ok: 1 }
// change save
// save then [
//   { n: 1, nModified: 1, ok: 1 },
//   { n: 1, nModified: 1, ok: 1 },
//   { n: 0, nModified: 0, ok: 1 }
// ]
// select all [
//   { id: 'id-peter', name: 'peter(modify)', value: 123 },
//   { id: 'id-rosemary', name: 'rosemary(modify)', value: 123.456 },
//   { id: 'random', name: 'kettle', value: 456 }
// ]
// select [
//   { id: 'id-rosemary', name: 'rosemary(modify)', value: 123.456 }
// ]
// select by $and, $gt, $lt [
//   { id: 'id-rosemary', name: 'rosemary(modify)', value: 123.456 }
// ]
// select by $or, $gte, $lte [
//   { id: 'random', name: 'kettle', value: 456 }
// ]
// select by $or, $and, $ne, $in, $nin [
//   { id: 'id-rosemary', name: 'rosemary(modify)', value: 123.456 },
//   { id: '{random id}', name: 'kettle', value: 456 }
// ]
// selectReg [
//   { id: 'id-peter', name: 'peter(modify)', value: 123 }
// ]
// change del
// del then [
//   { n: 1, nDeleted: 1, ok: 1 },
//   { n: 1, nDeleted: 1, ok: 1 }
// ]

Example for access mdb by json settings

Link: [dev source code]

import wo from 'w-orm-mdb'
import fs from 'fs'


let username = 'username'
let password = 'password'
let opt = {
    url: `mdb://${username}:${password}`, //username:password
    db: 'worm',
    cl: 'users',
    fdModels: './models',
    modelType: 'json',
    // autoGenPK: false,
    storage: './worm.mdb',
}

//因worm.mdb可能被修改, 先刪除再由worm_def.mdb複製一份來用
if (fs.existsSync(opt.storage)) {
    fs.unlinkSync(opt.storage)
    fs.copyFileSync('./worm_def.mdb', opt.storage)
}

let rs = [
    {
        id: 'id-peter',
        name: 'peter',
        value: 123,
    },
    {
        id: 'id-rosemary',
        name: 'rosemary',
        value: 123.456,
    },
    {
        id: '',
        name: 'kettle',
        value: 456,
    },
]

let rsm = [
    {
        id: 'id-peter',
        name: 'peter(modify)'
    },
    {
        id: 'id-rosemary',
        name: 'rosemary(modify)'
    },
    {
        id: '',
        name: 'kettle(modify)'
    },
]

async function test() {
    //測試mdb


    //w
    let w = wo(opt)


    //on
    w.on('change', function(mode, data, res) {
        console.log('change', mode)
    })
    w.on('error', function(err) {
        console.log('error', err)
    })


    //delAll
    await w.delAll()
        .then(function(msg) {
            console.log('delAll then', msg)
        })
        .catch(function(msg) {
            console.log('delAll catch', msg)
        })


    //insert
    await w.insert(rs)
        .then(function(msg) {
            console.log('insert then', msg)
        })
        .catch(function(msg) {
            console.log('insert catch', msg)
        })


    //save
    await w.save(rsm, { autoInsert: false })
        .then(function(msg) {
            console.log('save then', msg)
        })
        .catch(function(msg) {
            console.log('save catch', msg)
        })


    //select all
    let ss = await w.select()
    console.log('select all', ss)


    //select
    let so = await w.select({ id: 'id-rosemary' })
    console.log('select', so)


    //select by $and, $gt, $lt
    let spa = await w.select({ '$and': [{ value: { '$gt': 123 } }, { value: { '$lt': 200 } }] })
    console.log('select by $and, $gt, $lt', spa)


    //select by $or, $gte, $lte
    let spb = await w.select({ '$or': [{ value: { '$lte': -1 } }, { value: { '$gte': 200 } }] })
    console.log('select by $or, $gte, $lte', spb)


    //select by $or, $and, $ne, $in, $nin (access mdb not support)
    let spc = await w.select({ '$or': [{ '$and': [{ value: { '$ne': 123 } }, { value: { '$in': [123, 321, 123.456, 456] } }, { value: { '$nin': [456, 654] } }] }, { '$or': [{ value: { '$lte': -1 } }, { value: { '$gte': 400 } }] }] })
    console.log('select by $or, $and, $ne, $in, $nin', spc)


    //select by regex
    let sr = await w.select({ name: { $regex: 'PeT', $options: '$i' } })
    console.log('selectReg', sr)


    //del
    let d = []
    if (ss) {
        d = ss.filter(function(v) {
            return v.name !== 'kettle'
        })
    }
    await w.del(d)
        .then(function(msg) {
            console.log('del then', msg)
        })
        .catch(function(msg) {
            console.log('del catch', msg)
        })


}
test().catch((err) => console.log('err:', err))
// change delAll
// delAll then { n: 0, ok: 1 }
// change insert
// insert then { n: 3, ok: 1 }
// change save
// save then [
//   { n: 1, nModified: 1, ok: 1 },
//   { n: 1, nModified: 1, ok: 1 },
//   { n: 0, nModified: 0, ok: 1 }
// ]
// select all [
//   { id: 'id-peter', name: 'peter(modify)', value: 123 },
//   { id: 'id-rosemary', name: 'rosemary(modify)', value: 123.456 },
//   { id: 'random', name: 'kettle', value: 456 }
// ]
// select [
//   { id: 'id-rosemary', name: 'rosemary(modify)', value: 123.456 }
// ]
// select by $and, $gt, $lt [
//   { id: 'id-rosemary', name: 'rosemary(modify)', value: 123.456 }
// ]
// select by $or, $gte, $lte [
//   { id: 'random', name: 'kettle', value: 456 }
// ]
// select by $or, $and, $ne, $in, $nin [
//   { id: 'id-rosemary', name: 'rosemary(modify)', value: 123.456 },
//   { id: '{random id}', name: 'kettle', value: 456 }
// ]
// selectReg [
//   { id: 'id-peter', name: 'peter(modify)', value: 123 }
// ]
// change del
// del then [
//   { n: 1, nDeleted: 1, ok: 1 },
//   { n: 1, nDeleted: 1, ok: 1 }
// ]