node-mysql-easy

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Import

const { ConnectToDatabase, QueryDatabase } = require('node-mysql-easy');

To connect to the mysql database

const connectToDatabase = ConnectToDatabase(host,username,password,databasename);

To create instance query database class of table

const queryDatabase = new QueryDatabase(connectToDatabase, tablename);

Insert Function Documentation

Description

The Insert function is an asynchronous method that performs an SQL INSERT operation. It takes an object params as input, where the keys represent the column names and the values represent the corresponding values to be inserted.

Parameters

• params (object): An object containing key-value pairs representing the column names and values to be inserted into the table.

Return Value

The function returns the result of the INSERT operation.

Syntax

queryDatabase.Insert(params).then((result) => {
  console.log(result);
});

OR

const insertedData = await queryDatabase.Insert(params);

Usage

queryDatabase
  .Insert({
    username: "idris",
    password: "password",
    email: "[e-mail]",
  })
  .then((result) => {
    console.log(result);
  });

OR

const insertedData = await queryDatabase.Insert({
  username: "idris",
  password: "password",
  email: "[e-mail]",
});

InsertMultiple Function Documentation

Description

The InsertMultiple function is an asynchronous function that allows inserting multiple records into a database table. It takes an array of objects as a parameter, where each object represents a set of values to be inserted as a new record.

Parameters

• params (array): An array of objects representing the values to be inserted. Each object should have keys corresponding to the column names and their respective values.

Return Value

The function returns a Promise that resolves to the query result after executing the insert operation. The result can be any value returned by the database query execution.

Syntax

queryDatabase.InsertMultiple(param).then((result) => {
  console.log(result);
});

OR

const insertedData = await queryDatabase.InsertMultiple(param);

Usage

queryDatabase
  .InsertMultiple([
    {
      username: "idris",
      password: "password",
      email: "[e-mail]",
    },
    {
      username: "silas",
      password: "milexswags",
      email: "[e-mail]",
    },
    {
      username: "baba",
      password: "moh210",
      email: "[e-mail]",
    },
  ])
  .then((result) => {
    console.log(result);
  });

OR

const insertedData = await queryDatabase.InsertMultiple([
  {
    username: "idris",
    password: "password",
    email: "[e-mail]",
  },
  {
    username: "silas",
    password: "milexswags",
    email: "[e-mail]",
  },
  {
    username: "baba",
    password: "moh210",
    email: "[e-mail]",
  },
]);

Get Function Documentation

Description

The Get method use to get a value of column

Parameters

• column_name (string): Specifies the name of the column to retrieve from the table.
• where (string): Specifies the column name to match for the filtering condition.
• value (string): Specifies the value to compare against the where column.
• limit (number, optional): Specifies the maximum number of rows to retrieve. If not provided, all matching rows are returned.

Return Value

Returns a Promise that resolves to the result of the SQL query execution.

Usage

Suppose we want to get username where password = milexswags

queryDatabase.Get("username", "password", "milexswags", 1).then((result) => {
  console.log(result);
});

OR

const getData = await queryDatabase.Get(
  "username",
  "password",
  "milexswags",
  1
);

GetAdvanced Function Documentation

Description

The GetAdvanced function is used to retrieve data from a database table based on advanced filtering conditions. It supports filtering with multiple AND and OR conditions. The function constructs the SQL query dynamically based on the provided parameters and executes the query using a database connection. The query result is then returned.

Syntax

queryDatabase.GetAdvanced(params, limit).then((result) => {
  console.log(result);
});

Parameters

• params (object): An object containing the parameters for the advanced query.
• • column_name (array of strings): An array specifying the columns to retrieve from the table.
• • and (object, optional): An object representing the AND conditions for the query.
• • or (object, optional): An object representing the OR conditions for the query.
• • joinwith (string, optional): Specifies the logical operator to join the AND and OR conditions ("and" or "or"). Defaults to "or".
• • debug (boolean, optional): If set to true, the constructed SQL query will be logged to the console for debugging purposes.
• limit (number, optional): The maximum number of rows to retrieve from the table. Defaults to null, which retrieves all matching rows.

queryDatabase
  .GetAdvanced({
    column_names: ["username,email"],
    and: {
      password: "password",
      name: "idris",
    },
    or: {
      username: "idris",
      name: "silas",
    },
    joinwith: "or",
    debug: true,
  })
  .then((result) => {
    console.log(result);
  });

GetAll Function Documentation

Description

'GetAll' retrieves data from a database table. It allows fetching all records from the table or a specified number of records using an optional limit parameter.

Parameters

• limit (optional): A number indicating the maximum number of records to retrieve. If not provided or set to null, all records from the table will be fetched.

Return Value

The method returns a Promise that resolves to the result of the executed query. The result contains the retrieved records from the database table.

Usage

queryDatabase.GetAll().then((result) => {
  console.log(result);
});

OR

const insertedData = await queryDatabase.GetAll();

Update Function Documentation

Description

The Update method use to update a value of column

Parameters

• column_name (string): Specifies the name of the column to update from the table.
• where (string): Specifies the column name to match for the filtering condition.
• value (string): Specifies the value to compare against the where column.
• limit (number, optional): Specifies the maximum number of rows to update. If not provided, all matching rows are returned.

Return Value

Returns a Promise that resolves to the result of the SQL query execution.

Usage

Suppose we want to update username where password = milexswags

queryDatabase.Update("username", "password", "milexswags", 1).then((result) => {
  console.log(result);
});

OR

const updateData = await queryDatabase.Update(
  "username",
  "password",
  "milexswags",
  1
);

UpdateAdvanced Function Documentation

Description

The GetAdvanced function is used to update data from a database table based on advanced filtering conditions. It supports filtering with multiple AND and OR conditions. The function constructs the SQL query dynamically based on the provided parameters and executes the query using a database connection. The query result is then returned.

Syntax

queryDatabase.UpadateAdvanced(params, limit).then((result) => {
  console.log(result);
});

Parameters

• params (object): An object containing the parameters for the advanced query.
• • update (object): An object specifying the columns and the value you want to set.
• • and (object, optional): An object representing the AND conditions for the query.
• • or (object, optional): An object representing the OR conditions for the query.
• • joinwith (string, optional): Specifies the logical operator to join the AND and OR conditions ("and" or "or"). Defaults to "or".
• • debug (boolean, optional): If set to true, the constructed SQL query will be logged to the console for debugging purposes.
• limit (number, optional): The maximum number of rows to retrieve from the table. Defaults to null, which retrieves all matching rows.

queryDatabase
  .UpdateAdvanced({
    update: {
      username: "baba",
      email: "[e-mail]",
    },
    and: {
      password: "password",
      name: "baba",
    },
    or: {
      password: "password",
      age: 15,
    },
    debug: true,
  })
  .then((result) => {
    console.log(result);
  });

or

const udatedData = await queryDatabase.UpdateAdvanced({
  update: {
    username: "baba",
    email: "[e-mail]",
  },
  and: {
    password: "password",
    name: "baba",
  },
  or: {
    password: "password",
    age: 15,
  },
  debug: true,
});

UpdateAll Function Documentation

Description

'UpdateAll' updates data from a database table. It allows fetching all records from the table or a specified number of records using an optional limit parameter.

Parameters

• limit (optional): A number indicating the maximum number of records to update. If not provided or set to null, all records from the table will be fetched.

Return Value

The method returns a Promise that resolves to the result of the executed query. The result contains the updated records from the database table.

Usage

queryDatabase.UpdateAll().then((result) => {
  console.log(result);
});

OR

const insertedData = await queryDatabase.UpdateAll();

Delete Function Documentation

Description

The Delete method use to delete a value of column

Parameters

• column_name (string): Specifies the name of the column to delete from the table.
• where (string): Specifies the column name to match for the filtering condition.
• value (string): Specifies the value to compare against the where column.
• limit (number, optional): Specifies the maximum number of rows to delete. If not provided, all matching rows are returned.

Return Value

Returns a Promise that resolves to the result of the SQL query execution.

Usage

Suppose we want to delete username where password = milexswags

queryDatabase.Delete("username", "password", "milexswags", 1).then((result) => {
  console.log(result);
});

OR

const deleteData = await queryDatabase.Delete(
  "username",
  "password",
  "milexswags",
  1
);

DeleteAdvanced Function Documentation

Description

The GetAdvanced function is used to delete data from a database table based on advanced filtering conditions. It supports filtering with multiple AND and OR conditions. The function constructs the SQL query dynamically based on the provided parameters and executes the query using a database connection. The query result is then returned.

Syntax

queryDatabase.UpadateAdvanced(params, limit).then((result) => {
  console.log(result);
});

Parameters

• params (object): An object containing the parameters for the advanced query.
• • and (object, optional): An object representing the AND conditions for the query.
• • or (object, optional): An object representing the OR conditions for the query.
• • joinwith (string, optional): Specifies the logical operator to join the AND and OR conditions ("and" or "or"). Defaults to "or".
• • debug (boolean, optional): If set to true, the constructed SQL query will be logged to the console for debugging purposes.
• limit (number, optional): The maximum number of rows to retrieve from the table. Defaults to null, which retrieves all matching rows.

queryDatabase
  .DeleteAdvanced({
    and: {
      password: "password",
      name: "baba",
    },
    or: {
      password: "password",
      age: 15,
    },
    debug: true,
  })
  .then((result) => {
    console.log(result);
  });

or

const udatedData = await queryDatabase.DeleteAdvanced({
  and: {
    password: "password",
    name: "baba",
  },
  or: {
    password: "password",
    age: 15,
  },
  debug: true,
});

DeleteAll Function Documentation

Description

'DeleteAll' deletes data from a database table. It allows deleting all records from the table or a specified number of records using an optional limit parameter.

Parameters

• limit (optional): A number indicating the maximum number of records to delete. If not provided or set to null, all records from the table will be fetched.

Return Value

The method returns a Promise that resolves to the result of the executed query. The result contains the deleted records from the database table.

Usage

queryDatabase.DeleteAll().then((result) => {
  console.log(result);
});

OR

const insertedData = await queryDatabase.DeleteAll();

Custom SQL:

queryDatabase
.CustomSQL(sqlString)
.then((result) => {
console.log(result);
});

Example

queryDatabase
.CustomSQL(SELECT id, name, email
FROM users
WHERE age > 18
ORDER BY name ASC)
.then((result) => {
console.log(result);
});
```