tjwebb/congruence

Validate the structure of Javascript objects using semantic templates. Written as a lodash mixin.

congruence's Issues

congruence and xtuple-query

Hey, TJ

Looking through your congruence/xtuple-query code and trying to do something similar. I noticed xtuple-query uses an older version of congruence that has an "or" function to support using an array as a predicate. That was removed in this commit.

I'm wanting to use the latest version of congruence but can't quite figure out how you replaced the "or" method. From what I can tell you didn't, and you expect the user to write their own "or" predicate. Is this assumption correct or am I missing something?

A good example of what I am trying to achieve is something similar to this template.

0.3

use underscore-contrib functions for predicates

Error when not using as underscore mixin

Unrecoverable exception. Object function (obj) {
    if (obj instanceof _) return obj;
    if (!(this instanceof _)) return new _(obj);
    this._wrapped = obj;
  } has no method 'isObjectStrict'

research use of _.transform instead of _.each to visit object nodes

TypeError: Object.keys called on non-object

Should not be possible to cause this error

TypeError: Object.keys called on non-object
      at Function.keys (native)
      at _testSubtree (/home/tjwebb/workspace/xtuple/xtuple/node-datasource/lib/query/node_modules/congruence/congruence.js:31:22)
      at congruence.isDefined (/home/tjwebb/workspace/xtuple/xtuple/node-datasource/lib/query/node_modules/congruence/congruence.js:50:17)
      at Array.every (native)
      at Function._.every._.all (/home/tjwebb/workspace/xtuple/xtuple/node-datasource/lib/query/node_modules/underscore/underscore.js:193:62)
      at _testSubtree (/home/tjwebb/workspace/xtuple/xtuple/node-datasource/lib/query/node_modules/congruence/congruence.js:36:14)
      at Function.test (/home/tjwebb/workspace/xtuple/xtuple/node-datasource/lib/query/node_modules/congruence/congruence.js:92:12)

use underscore-contrib functions as predicates

http://documentcloud.github.io/underscore-contrib/#function.predicates

fire invalidation events

Make it easier to validate nested arrays

Currently arrays basically can only be validated with _.isArray. Validating their elements requires additional programming logic, which diminishes the value of the template.

[api] implement _.meets

where meet = not disjoint, topologically-speaking