- Fix: Ensure return after rejection (in get and count);

- Fix: Better type-checking for bad schema objects;
- Fix: Polyfill `newVersion` for PhantomJS
- API change (breaking)/Feature: Add `clearUnusedIndexes` option (defaults to `true`);
- API change (breaking)/Feature: Destroy and rebuild stores or indexes if present with different options;
- API addition: Support a `schemas` object keyed to version with values
as `schema` objects. (Utilizes own `IdbImport` class, relying on own fork of `idb-schema` at least for now.);
idb-schema callbacks will be passed db.js `Server` as second argument
- API addition: Support a `schemaBuilder` callback which accepts an
    [idb-schema](http://github.com/treojs/idb-schema) object for incremental,
    versioned schema building and whose `addCallback` method will be
    passed an enhanced `upgradeneeded` event object with a `Server` object
    as a second argument for making db.js-style queries
    (e.g., to modify store content), albeit with certain limitations.
    Along with `schemas`, addresses issues #84/#109
- API addition: Support a `clearUnusedStores` property to conditionally avoid deleting old stores.
- API addition: Add `db.del` alias of `db.delete`
- API addition: Add `del()` alias on `Server` for parity with `idb-batch` (likely to use or adapt for multiple change transactions);
- Feature: Change schema (and allow for `schemas`) to differentiate between "mixed", "whole", "idb-schema", and "merge" types with `schemaType` option (defaulting to `mixed` for `schema` and `whole` for `schemas`, maintaining prior behavior in backward-compatible manner);
- Docs: Update `version` and `schema` to take `schemaBuilder` into account
    (and document `schemaBuilder`).
- Docs: Expand on key behavior examples;
- Docs: Indicate that `key` is optional too
- Docs: Add mention of missing `limit` on `modify`
- Refactoring: Use `const` where possible;
- Refactoring: Change variable placement including reordering static variables according to type (built-in alias, IDB, immutables, cache)
- Refactoring: Avoid try-catch for brevity if will throw in sync body of Promise (but denote which lines may throw)
- Refactoring: simplify transaction building
- Refactoring: Add `lang` attribute for Atom linter-jade package;
- Code comment: `preventDefault` not only for Firefox.
- Code comment: Clarify how old connections may be closed
- Testing: Schema building tests
- Testing: Add tests for caching
- Testing: Add test:local and phantom on package.json scripts
- Testing: Fix server-handler test (expect specific error)
- Testing: Fix test-worker to deal with multiple babel-polyfill instances
- Testing: Remove redundant bad-args test
- Testing: Unregister service worker

Author: brettz9

CHANGES.md

@@ -1,5 +1,40 @@
 # CHANGES
 
+## Schema version (unreleased)
+
+- API change (breaking): Will delete unused indexes by default; set a new
+    property `clearUnusedIndexes` if not desired (when using `schema` or
+    `whole`-type `schema` objects within `schemas`)
+- API addition: Support a `clearUnusedStores` option property to
+    conditionally avoid deleting old stores (when using `schema` or
+    `whole`-type `schema` objects within `schemas`).
+- API addition: Support a `schemas` object. Its keys are the schema versions
+    and its values are--if `schemaType` is `"mixed"` (the default, unless
+    `schema` is used, in which case, it will be treated as `"whole"`)--arrays
+    containing an object whose single key is the schema type for that version
+    (either `"idb-schema"`, `"merge"`, or `"whole"`) and whose values are
+    `schema` objects whose structure differs depending on the schema type.
+    If `schemaType` is not `"mixed"` (`"whole"`, `"idb-schema"`, or `"merge"`),
+    each `schemas` key will be a schema version and its value a single
+    "schema object" (or, in the case of `"idb-schema"`, the function that
+    will be passed the `IdbSchema` instance). Where an object is expected,
+    one may also use a function which resolves to a valid object.
+- API addition: Support `moveFrom` and `copyFrom` for moving/copying a store
+    wholesale to another new store.
+- API addition: Support a `schemaBuilder` callback which accepts an
+    [idb-schema](http://github.com/treojs/idb-schema) object for incremental,
+    versioned schema building and whose `addCallback` method will be
+    passed an enhanced `upgradeneeded` event object that will be passed a
+    `Server` object as its second argument for making db.js-style queries
+    (e.g., to modify store content). This option differs from `schemas` used
+    with `idb-schema` in that it adds the versions as well as stores and
+    indexes programmatically. Addresses issues #84/#109
+- API addition: If there is an upgrade problem, one can use a `retry` method
+    on the error event object
+- Fix: Add Promise rejection for `update()`.
+- Documentation: Update `version` to take `schemaBuilder` into account
+    (and document `schemaBuilder`).
+
 ## Unreleased
 
 - Breaking change: Change `db.cmp()` to return a `Promise` to deliver
@@ -10,23 +45,24 @@
 - Deprecated: on `schema.indexes`, in place of the index `key` property,
     `keyPath` should be used.
 - API fix: Disallow `map` on itself (only one will be used anyways);
-- API addition: Add Server aliases, `put` and `delete`.
+- API addition: Add Server aliases, `put` and `delete` (or `del`) and `db.del`
+    as a `db.delete` alias.
 - API change: Allow `desc`, `distinct`, `filter`, `keys`, `map`, `modify`
     on `limit`;
 - API change: Allow `limit` on `distinct`, `desc`, `keys`;
 - API change: Allow `{item:...}` without `key` for sake of unambiguity
 - API change: Allow `add`/`update` items to be of any value including
     `undefined` or `null`
 - API change: Allow Mongoifying of `add`/`update`/`remove` keys
-- API change: Disallow key in `count()` if null;
+- API change: Disallow key in `count()` if `null`;
 - Cross-browser support: Auto-wrap user-supplied `Server.error()` and
     `Server.addEventListener('error', ...)` handlers with `preventDefault`
     so as to avoid hard `ConstraintError` aborts in Firefox.
 - Cross-browser support: add `preventDefault` in error listener so that
     `onupgradeneeded` errors will not become reported in Firefox (though it
     will occur regardless)
 - Cross-browser support (minor): wrap `delete` `onblocked` event's
-    `newVersion` (=null) with `Proxy` but avoid using using `Proxy`
+    `newVersion` (=`null`) with `Proxy` but avoid using using `Proxy`
     if not present for sake of PhantomJS or older browsers (Firefox);
     could not wrap `oldVersion`, however.
 - Fix: Ensure there is a promise rejection for a bad schema callback,

Gruntfile.js

@@ -76,7 +76,7 @@ module.exports = function (grunt) {
         },
 
         eslint: {
-            target: ['src/db.js', 'src/test-worker.js']
+            target: ['src/db.js', 'src/test-worker.js', 'src/idb-import']
         },
 
         babel: {
@@ -86,7 +86,8 @@ module.exports = function (grunt) {
             dist: {
                 files: {
                     'dist/db.js': 'src/db.js',
-                    'tests/test-worker.js': 'src/test-worker.js'
+                    'tests/test-worker.js': 'src/test-worker.js',
+                    'dist/idb-import.js': 'src/idb-import.js'
                 }
             }
         },
@@ -101,6 +102,11 @@ module.exports = function (grunt) {
                         standalone: 'db'
                     }
                 }
+            },
+            dest: {
+                files: {
+                    'dist/idb-import.js': 'dist/idb-import.js'
+                }
             }
         },
 
@@ -117,6 +123,14 @@ module.exports = function (grunt) {
                     'dist/db.min.js': ['dist/db.js']
                 }
             },
+            idbImport: {
+                options: {
+                    sourceMapIn: 'dist/idb-import.js.map' // input sourcemap from a previous compilation
+                },
+                files: {
+                    'dist/idb-import.min.js': ['dist/idb-import.js']
+                }
+            },
             testworker: {
                 options: {
                     sourceMapIn: 'tests/test-worker.js.map' // input sourcemap from a previous compilation