33 lines
823 B
JavaScript
33 lines
823 B
JavaScript
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let AppVersion = new Mongo.Collection('AppVersion');
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let AppVersionSchema = new SimpleSchema({
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version: {
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type: Number,
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optional: false,
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defaultValue: 0
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}
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});
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AppVersion.attachSchema(AppVersionSchema);
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try {
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let appVersions = AppVersion.find({}).fetch();
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let appVersion;
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if(!appVersions || appVersions.length == 0) { //This will happen only when first creating a database.
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appVersion = {version: 0};
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appVersion._id = AppVersion.insert(appVersion);
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}
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else if(appVersions.length > 1) { //This should never happen. Remove all but the first app version.
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for(let i = 1; i < appVersions.length; i++) {
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AppVersion.remove(appVersions[i]._id);
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}
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}
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else {
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appVersion = appVersions[0];
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}
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}
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catch(err) {
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console.log("Caught an error while upgrading the app version: " + err);
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process.exit(1);
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}
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