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POpopulate based on condition in mongoose js not working
 

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  1. POpopulate based on condition in mongoose js not working
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    <p>I have 2 schema</p> <pre><code>var Schema = require('mongoose').Schema; var DeviceSchema = new Schema({ name: { type: String }, code: { type: String, unique: true }, os: { type: String }, userEmail: { type: String }, checkoutTime: { type: Date }, tags: { type: [String] } }); module.exports = DeviceSchema; var Schema = require('mongoose').Schema; var TrackHistorySchema = new Schema({ userEmail: { type: String }, device: { type: Schema.ObjectId, ref: 'Device', required: true }, checkinTime: { type: Date }, checkoutTime: { type: Date, 'default': Date.now } }); module.exports = TrackHistorySchema; </code></pre> <p>I have a search track history with criteria user email id and device name. </p> <p>This works if I used on email criteria from history table </p> <pre><code>TrackHistory.find({'userEmail': req.query.searchText}) .populate({path: 'device'}) .sort('-name') .skip(page * maxHistoryPerPage) .limit(maxHistoryPerPage) .exec(next); </code></pre> <p>But it will not work if I used device name criteria from device table</p> <pre><code>TrackHistory.find({}) .populate({path: 'device', match: {name: req.query.searchText}}) .sort('-name') .skip(page * maxHistoryPerPage) .limit(maxHistoryPerPage) .exec(next); </code></pre> <p>I am getting all rows of history with device columns null, just like a left join in mysql. I wanted an inner join like functionality, that is if device name not matching then the corresponding history rows also should not be shown. I tried different combinations from mongoose documentation. Tried where clause also.</p> <p>I am using mongoose 3.6.2 (latest available as of now)</p> <h1>Edit - adding model code</h1> <pre><code>var mongoose = require('mongoose'); var DeviceSchema = require('../schemas/device'); var Device = mongoose.model('Device', DeviceSchema); module.exports = Device; var mongoose = require('mongoose'); var TrackHistorySchema = require('../schemas/track_history'); var TrackHistory = mongoose.model('TrackHistory', TrackHistorySchema); module.exports = TrackHistory; </code></pre>
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    1. USRajeesh V
    1. USRajeesh V
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    1. COCan you show the model initialization aswell please? It is important that you call your reference the name of your model, not the schema as in DeviceSchema.
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      1. POpopulate based on condition in mongoose js not working
      1. USExxKA
    2. COI have edited and included the model initialization.
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      1. POpopulate based on condition in mongoose js not working
      1. USRajeesh V
 

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