Refactor CLI and add tests

src/server/mixins.js

@@ -0,0 +1,77 @@
+var uuid = require('node-uuid')
+var pluralize = require('pluralize')
+
+module.exports = {
+  getRemovable: getRemovable,
+  createId: createId,
+  deepQuery: deepQuery
+}
+
+// Returns document ids that have unsatisfied relations
+// Example: a comment that references a post that doesn't exist
+function getRemovable (db) {
+  var _ = this
+  var removable = []
+  _.each(db, function (coll, collName) {
+    _.each(coll, function (doc) {
+      _.each(doc, function (value, key) {
+        if (/Id$/.test(key)) {
+          var refName = pluralize.plural(key.slice(0, -2))
+          // Test if table exists
+          if (db[refName]) {
+            // Test if references is defined in table
+            var ref = _.getById(db[refName], value)
+            if (_.isUndefined(ref)) {
+              removable.push({name: collName, id: doc.id})
+            }
+          }
+        }
+      })
+    })
+  })
+
+  return removable
+}
+
+// Return incremented id or uuid
+// Used to override underscore-db's createId with utils.createId
+function createId (coll) {
+  var _ = this
+  var idProperty = _.__id()
+  if (_.isEmpty(coll)) {
+    return 1
+  } else {
+    var id = _.max(coll, function (doc) {
+      return doc[idProperty]
+    })[idProperty]
+
+    if (_.isFinite(id)) {
+      // Increment integer id
+      return ++id
+    } else {
+      // Generate string id
+      return uuid()
+    }
+  }
+}
+
+function deepQuery (value, q) {
+  var _ = this
+  if (value && q) {
+    if (_.isArray(value)) {
+      for (var i = 0; i < value.length; i++) {
+        if (_.deepQuery(value[i], q)) {
+          return true
+        }
+      }
+    } else if (_.isObject(value) && !_.isArray(value)) {
+      for (var k in value) {
+        if (_.deepQuery(value[k], q)) {
+          return true
+        }
+      }
+    } else if (value.toString().toLowerCase().indexOf(q) !== -1) {
+      return true
+    }
+  }
+}