update version

CMakeLists.txt

@@ -1,7 +1,7 @@
 include_directories(./src)
 
 project (invodb)
-cmake_minimum_required(VERSION 3.15)
+cmake_minimum_required(VERSION 3.0)
 
 set(CMAKE_CXX_STANDARD 17)
 

benchmark/invodb.js

@@ -3,7 +3,6 @@ const { execSync } = require("child_process")
 
 execSync("rm -rf benchmark.invodb")
 
-
 let time = 0
 function clock() {
     let last = time

docs/test.js

@@ -0,0 +1,27 @@
+const invodb = require('..')
+
+invodb.database('test.invodb')
+
+let col = invodb.collection('blog')
+if(!col.exist()) col.create();
+
+col.insert({
+    "id": 7,
+    "title": "这是一篇文章",
+    "content": "这是文章内容",
+    "author": "YuhangQ",
+    "category": "数据库",
+    "original-url": null,
+    "tags": ["数据库", "C++", "数据结构"],
+    "parameters": {
+      "hidden": true,
+      "like": 25565,
+    },
+    "comment": [
+      {"username": "YuhangQ", "content": "文章写的真不错！"},
+      {"username": "TechCiel", "content": "能提供下打赏渠道吗？"},
+    ]
+})
+
+let result = col.query({})
+console.log(result)

index.js

@@ -17,7 +17,7 @@ function collection(collectionName) {
         let json = JSON.stringify(object);
         core.remove(collectionName, json);
     }
-    function query(object) {
+    function find(object) {
         if(!core.exists(collectionName)) throw `Collection ${collectionName} doesn't exists!`;
         let json = JSON.stringify(object);
         let res = [];
@@ -26,12 +26,18 @@ function collection(collectionName) {
         }
         return res;
     }
+    function findOne(object) {
+        let res = find(object);
+        if(res.length >= 1) return res[0];
+        return undefined;
+    }
     return {
         exist: exist,
         create: create,
         insert: insert,
         remove: remove,
-        query: query,
+        find: find,
+        findOne: findOne,
         update: insert
     }
 }

package.json

@@ -1,6 +1,6 @@
 {
   "name": "invodb",
-  "version": "1.0.23",
+  "version": "1.1.1",
   "description": "a nosql json document database",
   "main": "index.js",
   "scripts": {

src/file/page_manager.cpp

@@ -10,6 +10,7 @@ std::fstream PageManager::stream;
 int PageManager::loadDatabase(const char *filename) { 
     Instance().stream.open(filename);
     Instance().stream.seekp(0, std::ios::end);
+
     if(!Instance().stream.is_open()) {
         std::ofstream file(filename, std::fstream::out);
         file.close();
@@ -68,12 +69,13 @@ int PageManager::allocate() {
     }
 
     index = page.getIntStartFrom(4);
+
     //printf("2allocate: %d\n", index);
 
     page.setIntStartFrom(4, index + 1);
     page.save();
     //      allocate block at the end
-//    stream.seekp(0, std::ios::end);
+ //   stream.seekp(0, std::ios::end);
 //    index = stream.tellp() / 1024;
     setPage(index, StoragePage(index));
     return index;