update docs for $exists

API.md

@@ -70,7 +70,7 @@ documents, arrays, arrays of subdocuments and to match a specific element of an
 <li><code>$gt</code>, <code>$gte</code>: greater than, greater than or equal</li>
 <li><code>$in</code>: member of. <code>value</code> must be an array of values</li>
 <li><code>$ne</code>, <code>$nin</code>: not equal, not a member of</li>
-<li><code>$stat</code>: checks whether the document posses the property <code>field</code>. <code>value</code> should be true or false</li>
+<li><code>$exists</code>: checks whether the document posses the property <code>field</code>. <code>value</code> should be true or false</li>
 <li><code>$regex</code>: checks whether a string is matched by the regular expression. Contrary to MongoDB, the use of
 <code>$options</code> with <code>$regex</code> is not supported, because it doesn't give you more power than regex flags. Basic
 queries are more readable so only use the <code>$regex</code> operator when you need to use another operator with it</li>
@@ -972,7 +972,7 @@ documents, arrays, arrays of subdocuments and to match a specific element of an
 <li><code>$gt</code>, <code>$gte</code>: greater than, greater than or equal</li>
 <li><code>$in</code>: member of. <code>value</code> must be an array of values</li>
 <li><code>$ne</code>, <code>$nin</code>: not equal, not a member of</li>
-<li><code>$stat</code>: checks whether the document posses the property <code>field</code>. <code>value</code> should be true or false</li>
+<li><code>$exists</code>: checks whether the document posses the property <code>field</code>. <code>value</code> should be true or false</li>
 <li><code>$regex</code>: checks whether a string is matched by the regular expression. Contrary to MongoDB, the use of
 <code>$options</code> with <code>$regex</code> is not supported, because it doesn't give you more power than regex flags. Basic
 queries are more readable so only use the <code>$regex</code> operator when you need to use another operator with it</li>

README.md

@@ -48,7 +48,7 @@ repository. It is generated by running `npm run generateDocs:markdown`.
 * [Inserting documents](#inserting-documents)
 * [Finding documents](#finding-documents)
   * [Basic Querying](#basic-querying)
-  * [Operators ($lt, $lte, $gt, $gte, $in, $nin, $ne, $stat, $regex)](#operators-lt-lte-gt-gte-in-nin-ne-stat-regex)
+  * [Operators ($lt, $lte, $gt, $gte, $in, $nin, $ne, $exists, $regex)](#operators-lt-lte-gt-gte-in-nin-ne-stat-regex)
   * [Array fields](#array-fields)
   * [Logical operators $or, $and, $not, $where](#logical-operators-or-and-not-where)
   * [Sorting and paginating](#sorting-and-paginating)
@@ -262,7 +262,7 @@ const doc = await db.findOneAsync({ _id: 'id1' })
 // If no document is found, doc is null
 ```
 
-#### Operators ($lt, $lte, $gt, $gte, $in, $nin, $ne, $stat, $regex)
+#### Operators ($lt, $lte, $gt, $gte, $in, $nin, $ne, $exists, $regex)
 
 The syntax is `{ field: { $op: value } }` where `$op` is any comparison
 operator:
@@ -271,7 +271,7 @@ operator:
 * `$gt`, `$gte`: greater than, greater than or equal
 * `$in`: member of. `value` must be an array of values
 * `$ne`, `$nin`: not equal, not a member of
-* `$stat`: checks whether the document posses the property `field`. `value`
+* `$exists`: checks whether the document posses the property `field`. `value`
   should be true or false
 * `$regex`: checks whether a string is matched by the regular expression.
   Contrary to MongoDB, the use of `$options` with `$regex` is not supported,
@@ -292,8 +292,8 @@ const docs = await db.findAsync({ planet: { $gt: 'Mercury' } })
 const docs = await db.findAsync({ planet: { $in: ['Earth', 'Jupiter'] } })
 // docs contains Earth and Jupiter
 
-// Using $stat
-const docs = await db.findAsync({ satellites: { $stat: true } })
+// Using $exists
+const docs = await db.findAsync({ satellites: { $exists: true } })
 // docs contains only Mars
 
 // Using $regex with another operator

lib/datastore.js

@@ -89,7 +89,7 @@ const { isDate, pick, filterIndexNames } = require('./utils.js')
  *   - `$gt`, `$gte`: greater than, greater than or equal
  *   - `$in`: member of. `value` must be an array of values
  *   - `$ne`, `$nin`: not equal, not a member of
- *   - `$stat`: checks whether the document posses the property `field`. `value` should be true or false
+ *   - `$exists`: checks whether the document posses the property `field`. `value` should be true or false
  *   - `$regex`: checks whether a string is matched by the regular expression. Contrary to MongoDB, the use of
  *   `$options` with `$regex` is not supported, because it doesn't give you more power than regex flags. Basic
  *   queries are more readable so only use the `$regex` operator when you need to use another operator with it

test/model.test.js

@@ -1169,7 +1169,7 @@ describe('Model', function () {
     })
 
     // General behaviour is tested in the block about $lt. Here we just test operators work
-    describe('Other comparison operators: $lte, $gt, $gte, $ne, $in, $stat', function () {
+    describe('Other comparison operators: $lte, $gt, $gte, $ne, $in, $exists', function () {
       it('$lte', function () {
         model.match({ a: 5 }, { a: { $lte: 6 } }).should.equal(true)
         model.match({ a: 5 }, { a: { $lte: 5 } }).should.equal(true)