生成Mongodb索引建立脚本

gen.js

var db = connect(url);

var dbName = db.getName();
print(`Database: ${dbName}`);

var collections = db.getCollectionNames()

collections.forEach((table)=>{
    var commands = [];
    var indexes = db[table].getIndexes();
    
    if(indexes.length>0){
        print(`//collection: ${table}`)
   
    var indexList = [];
    
    indexes.forEach((index)=>{
        if(index.name!="_id_"){
         
            var keys = index.key;
            var options = {};
            Object.keys(index).forEach((k)=>{
                if(["v","key","ns"].indexOf(k)==-1){
                    options[k] = index[k];
                }
            })
            
            var indexItem = options;
            indexItem["key"] = keys;
            indexList.push(indexItem)
        }
    });
    
    var cmd = `db.runCommand({createIndexes:"${table}",indexes:${JSON.stringify(indexList)}});`
    print(cmd);
    
    
    print("\n");
    }
})

print("\n");
print("end");

gen.sh

nohup mongo --eval "var url='127.0.0.1:27017/taskcenter';"   /usr/local/mongoshell/gen.js  > allindex.js &

gen_md.js

//var db = connect(url);

var conn = new Mongo(url);

var databases = conn.getDBNames();

databases.forEach((dbName)=>{
    print("\n");
    print(`# Database: ${dbName}`);
	print("\n");
    db = conn.getDB(dbName);

    var collections = db.getCollectionNames()

    collections.forEach((table)=>{
        var commands = [];
        var indexes = db[table].getIndexes();
        
        if(indexes.length>0){
            print(`## collection: ${table}`)
			print("\n");
			
			print(`### Entity`);
			print("\n");
			print("```javascript\n");
			print("```");
			var indexList = [];
			
			indexes.forEach((index)=>{
				if(index.name!="_id_"){
				
					var keys = index.key;
					var options = {};
					Object.keys(index).forEach((k)=>{
						if(["v","key","ns"].indexOf(k)==-1){
							options[k] = index[k];
						}
					})
					
					var indexItem = options;
					indexItem["key"] = keys;
					indexList.push(indexItem)
				}
			});
			
			print("\n");
			print(`### index`);
			print("```javascript\n");
			var cmd = `db.runCommand({createIndexes:"${table}",indexes:${JSON.stringify(indexList)}});`
			print(cmd);
			print("```");
			
			print("\n");
        }
    })

    print("\n");
    print("=========================");
});

genAll.js

//var db = connect(url);

var conn = new Mongo(url);

var databases = conn.getDBNames();

databases.forEach((dbName)=>{
    print("\n");
    print(`Database: ${dbName}`);
    db = conn.getDB(dbName);

    var collections = db.getCollectionNames()

    collections.forEach((table)=>{
        var commands = [];
        var indexes = db[table].getIndexes();
        
        if(indexes.length>0){
            print(`//collection: ${table}`)
    
        var indexList = [];
        
        indexes.forEach((index)=>{
            if(index.name!="_id_"){
            
                var keys = index.key;
                var options = {};
                Object.keys(index).forEach((k)=>{
                    if(["v","key","ns"].indexOf(k)==-1){
                        options[k] = index[k];
                    }
                })
                
                var indexItem = options;
                indexItem["key"] = keys;
                indexList.push(indexItem)
            }
        });
        
        var cmd = `db.runCommand({createIndexes:"${table}",indexes:${JSON.stringify(indexList)}});`;
        print(cmd);
        
        
        print("\n");
        }
    })

    print("\n");
    print("=========================");
});

genAll.sh

nohup mongo --eval "var url='127.0.0.1:27017/';"   /usr/local/mongoshell/gen.js  > allindex.js &