Meteor.js按字段中的值过滤集合

Question

Currently in meteor.js im trying to figure out how to return all collections with a field containing a particular value:

 Posts.insert({ tags: ['test', 'test1', 'test2'], categories: ['test', 'planning'], article: { title: 'Lorem ipsum dollar sum import', content: 'Lorem balck solo su, bella hun sillo.', author: 'test' }, comments: [{title: 'test', 'content': 'hello world'},], }); 

So, for instance in the context of filtering posts by category how can I return all the collections with the categories array containing a string matching 'test' or 'planning' and exclude those that don't contain that string in the array?

This is for a simple blog app I have been working on, also if there is a more efficient way of storing posts and associated information please let me know that world be awesome.

Answer 1

You can use the $in operator. For example:

Posts.find({categories: {$in: ['test', 'planning']}});

Would find all posts where categories has at least one element matching either 'test' or 'planning' .