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Meteor minimongo: Insert and Remove in bulk using an array
/*
These two functions provide a simple extra minimongo functionality to add and remove documents in bulk,
without unnecessary re-renders.
The process is simple. It will add the documents to the collections "_map" and only the last item will be inserted properly
to cause reactive dependencies to re-run.
*/
Models = {};
/*
Inserts documents in bulk.
@method insertBulk
@param {Object} collection the collection to insert
@param {Array} documents an array with documents
@return {Array} with the ids
*/
Models.insertBulk = function(collection, documents){
if(collection) {
return _.compact(_.map(documents, function(item){
if(_.isObject(item)) {
var _id = collection._makeNewID();
// insert with reactivity only on the last item
if(_.last(documents) === item)
_id = collection.insert(item);
// insert without reactivity
else {
item._id = _id;
collection._collection._docs._map[_id] = item;
}
return _id;
}
}));
}
},
/*
Removes documents in bulk.
@method removeBulk
@param {Object} collection the collection to remove from
@param {Object} query the query to find items
@return {Undefined}
*/
Models.removeBulk = function(collection, query){
var _this = this;
if(collection {
var documents = collection.find(query).fetch();
// clean items
_.each(documents, function(item){
// insert with reactivity only on the last item
if(_.last(documents) === item)
collection.remove(item._id);
// insert without reactivity
else
delete _collection_collection._docs._map[item._id];
});
}
},
@DirkStevens

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DirkStevens commented Jan 5, 2015

Hello Frozeman,

I couldn't find a lot of other people's experience on your interesting approach. How sure are you that the collections which you bulk insert on the client are then properly saved on the server without corruption of _ids for example?

@DirkStevens

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DirkStevens commented Jan 5, 2015

Hello Frozeman - I tried this but it didn't work. Not unexcpected only the last insert is truly saved to the database.

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