Meteor collection2 field in $unset list -


i have simpleschema:

  imageurl: {     type: object,     optional: true,     autovalue: function() {       if (meteor.isclient) return;       var imagefield = this.field('imageid');       if (!imagefield.isset){         this.unset();       } else {         var imageobj = mealsimages.findone(imagefield.value);         if (imageobj){           return {thumb: imageobj.s3url('thumb'), big: imageobj.s3url('big')};         }       }     },     autoform: {       label: false,       type: 'hidden',       affieldinput: {         type: "hidden"       }     }   },

for reason, when update record field appears in $unset array:

meteor.methods({   mealupsert: function(doc, mealid) {     check(doc, meals.simpleschema());      console.log('test7');     console.log(doc);      if (mealid){       meals.update({_id: mealid}, doc);     } else {       mealid = meals.insert(doc);     }     return false;   } });

will print:

i20150830-21:49:39.560(-4)? { '$set':  ... i20150830-21:49:39.562(-4)?   '$unset':  i20150830-21:49:39.562(-4)?    { imageurl: '', ...

i'm using autoform:

<template name="mealupdateform">   <div class="meal-content">     {{> quickform collection="meals" doc=this id="mealupdateform" meteormethod="mealupsert" type="method-update"}}   </div> </template>

and never updated or set. clue why field appear in $unset list?

i think i've figured out - have this.unset() in autovalue imageurl. called whenever omit imageid modifier, if present in document modifying!


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