standard-redux-shape - npm Package Compare versions

Comparing version 0.5.2 to 0.6.0

package.json

 {
   "name": "standard-redux-shape",
-  "version": "0.5.2",
+  "version": "0.6.0",
   "description": "A library to help standardize your redux state shape",
@@ -8,3 +8,3 @@ "main": "dist/index.js",
     "lint": "eslint src",
-    "prepare": "npm run lint && npm run build",
+    "prepublishOnly": "npm run lint && npm run build",
     "start": "webpack-dev-server --config=webpack.demo.config.js",
@@ -11,0 +11,0 @@ "build": "webpack --config=webpack.build.config.js"

src/entities.js

@@ -78,4 +78,8 @@ /**
  * @param {Function} nextReducer 后续处理的reducer
+ * @param {Function} customMerger 用户自定义的合并 table 的方法
  */
-export const createTableUpdateReducer = (nextReducer = s => s) => (state = {}, action) => {
+export const createTableUpdateReducer = (
+    nextReducer = s => s,
+    customMerger = (tableName, table, entities, defaultMerger) => defaultMerger()
+) => (state = {}, action) => {
     if (action.type !== UPDATE_ENTITY_TABLE) {
@@ -98,10 +102,17 @@ return nextReducer(state, action);
     // 如果之前有一个比较完整的实体已经在`state`中，后来又来了一个不完整的实体，直接覆盖会导致字段丢失，
-    // 因此针对每个实体，使用的是浅合并的策略，保证第一级的字段是不会丢的
+    // 因此默认针对每个实体，使用的是浅合并的策略，保证第一级的字段是不会丢的；更复杂场景下，由用户在 customMerger 中自行处理
     //
     // 由于`key`中可能存在`"."`这个符号，而`san-update`具备属性访问路径的解析，会直接认为这是一个属性访问，
     // 因此这里搞成`[key]`强制表达这个属性就是一个带点的字符串
-    const merging = reduce(entities, (chain, value, key) => chain.merge([key], value), immutable(table));
-    const [mergedTable, diff] = merging.withDiff();
-    const newState = isEmpty(diff) ? state : {...state, [tableName]: mergedTable};
+    const defaultMerger = () => {
+        const merging = reduce(entities, (chain, value, key) => chain.merge([key], value), immutable(table));
+        const[mergedTable, diff] = merging.withDiff();
+        return isEmpty(diff) ? table : mergedTable;
+    };
+
+    const mergedTable = customMerger(tableName, table, entities, defaultMerger);
+
+    const newState = mergedTable === table ? state : {...state, [tableName]: mergedTable};
+
     return nextReducer(newState, action);
 };

No alert changes

Improved metrics

Total package byte prevSize

861541

increased by0.13%

Lines of code

712

increased by1.28%

No dependency changes