Monologue - Streamlined query building

Support Development

Updates

0.9.2

• Added .count, .sum(), .min(), and .max() for streamlining (and testing) aggregate fields in SELECT statements

0.9.1

• Added .values() method for adding additional VALUES to INSERT statements

0.9.0

• Added .set() method for augmenting/overwriting SET statements when using UPDATE (INSERT coming soon)
• Breaking change: stringify() no longer automatically encapsulates arrays with (). Must be done by hand now (improves consistency with stringify() on objects)

Examples

These may be slightly little out of date due to recent changes but are pretty close to correct. See test.js for some great examples

var monologue = require('monologue');

// grouping of where statements, pay attention to how the objects are grouped and what the output becomes
// output: SELECT * FROM food WHERE type = 'junk' AND (chocolate = true AND flavor = 'sweet' OR caramel = true) OR (flavor = 'salty' AND peanuts = true)
monologue()
    .select('*', 'food')
    .where({type: 'junk'})
    .and([
        {flavor: 'sweet', chocolate: true},
        {caramel: true}
    ])
    .or([ {flavor: 'salty', peanuts: true} ])
    .sql()

// Less than basic SELECT statement
// call the SQL wrappers in any order, see below: where, group, where, order
// output: SELECT * FROM users WHERE id IN (1,2,3,4,5,6) AND date_time BETWEEN '2012-09-12' AND '2013-01-20' OR name LIKE 'ro%en' GROUP BY type, hamster ASC ORDER BY id ASC LIMIT 1000, 300

var mono = monologue()
    .select( "*", "users")
    .where( { "id": [1,2,3,4,5,6] } ) // alternative to where("id").in([...])
    .and( 'date_time' ).between( '2012-09-12', '2013-01-20')
    .group( ['type', 'hamster' ] )
    .or( "name" ).like("ro%en") // out of order, also passing "OR" as separator
    .order( "id" )
    .limit( '300', 1000 )
    .sql();


// INSERT, passing an array of objects
// output: INSERT INTO users (first_name, password, username) VALUES ('me','1234','test'),('pasta','abcd','example')

monologue()
    .insert( 'users', [
        { username: 'test', password: '1234', first_name: 'me' },
        { username: 'example', password: 'abcd', first_name: "pasta" }
    ] )
    .sql();


// INSERT, passing a single object
// output: INSERT INTO users (first_name, password, username) VALUES ('cubert','abcd','me')

monologue()
    .insert( 'users', {
        username: 'me', password: 'abcd', first_name: "cubert"
    } )
    .sql();

// INSERT, passing array of column names and array of values
// output: INSERT INTO `users` (`email`,`first_name`,`last_name`) VALUES ('[email protected]', 'Test', 'User'),('[email protected]', 'Sample', 'Person'),('[email protected]', 'Fake', 'Name')

monologue()
    .insert( 'users', ['email', 'first_name', 'last_name'], [
        ['[email protected]', 'Test', 'User'],
        ['[email protected]', 'Sample', 'Person'],
        ['[email protected]', 'Fake', 'Name']
    ]).sql();


// UPDATE
// output: UPDATE users SET email = '[email protected]', password = 'abcdefg', username = 'yoyo' WHERE id = 23

monologue()
    .update( "users", {username: "yoyo", email: '[email protected]', password: "abcdefg"} )
    .where( {id: 23} )
    .sql();

// augment/overwrite previous SET statements! very handy for conditional cases

let query = monologue()
	.update( "files", { name: 'MyFile.pdf', path: "/path/to/myfile.pdf", status: 1, user_id: 23 })
	.where({ id: 867 })

if( someCondition ) {
	query.set({ status: 0, user_id: 45, hidden: 1 })
}

// output: UPDATE `files` SET `name` = 'MyFile.pdf', `path` = '/path/to/myfile.pdf', `status` = 0, `user_id` = 45, `hidden` = 1 WHERE `id` = 867
update.sql()


// DELETE
// output: DELETE FROM users WHERE first_name = 'me' AND password = '1234' AND username = 'test'

monologue()
    .delete( 'users', { username: 'test', password: '1234', first_name: "me" } )
    .sql();

// SELECT `username`, `password` FROM `users` WHERE id NOT IN (1,2,3,4)
mono()
    .select(['username', 'password'], 'users')
    .where('id')
    .not([1,2,3,4])
    .sql();

// SELECT * FROM `campsites` WHERE `reserved` != true AND `fishing` != \'slow\'
mono()
    .select('*', 'campsites')
    .not({'reserved': true, fishing: 'slow'})
    .sql();

// SELECT * FROM `media` WHERE `type` IS NOT NULL AND `file_size` > 0 AND `seconds` > 24325
mono()
    .select('*', 'media')
    .not({'type': null})
    .gt({file_size: 0, seconds: 24325})
    .sql();

// SELECT `username`, `password` FROM `users` WHERE `username` != \'joe\' AND `username` != \'bob\'
mono()
    .select(['username', 'password'], 'users')
    .not([{username: 'joe'},{username: 'bob'}])
    .sql();

// SELECT * FROM `users` WHERE last_login NOT BETWEEN \'2015-10-01 00:00:00\' AND \'2015-11-30 23:59:59\'
mono()
    .select('*', 'users')
    .where('last_login')
    .not()
    .between('2015-10-01 00:00:00', '2015-11-30 23:59:59')
    .sql();

// SELECT `title`, `post` FROM `posts` WHERE status < 8
mono()
    .select(['title', 'post'], 'posts')
    .where('status').lt(8)
    .sql();

// SELECT * FROM `posts` WHERE `favorited` <= 815 AND `commentors` <= 1516 OR `likes` <= 42
mono()
    .select('*', 'posts')
    .lte([{favorited: 815, commentors: 1516},{likes: 42}], 'OR')
    .sql();

// SELECT `post_id`, `comments` FROM `comments` WHERE `post_id` = 23565 AND date_time > \'2015-12-01 00:00:00\'
mono()
    .select(['post_id', 'comments'], 'comments')
    .where({post_id: 23565})
    .where('date_time').gt('2015-12-01 00:00:00')
    .sql();

// SELECT sum(id) as count FROM comments HAVING count >= 42
mono({backquote: false})
    .select('sum(id) as count', 'comments')
    .having('count').gte(42)
    .sql();


// the different JOIN methods
mono().ljoin( table, statement ); // LEFT JOIN
mono().rjoin( table, statement ); // RIGHT JOIN
mono().lojoin( table, statement ); // LEFT OUTER JOIN
mono().rojoin( table, statement ); // RIGHT OUTER JOIN


// JOIN (default is inner):
// SELECT * FROM users u INNER JOIN posts p ON p.user_id = u.id WHERE category = '67'

monologue()
    .select( "*", "users u" )
    .join( "posts p", "p.user_id = u.id" )
    .where( { "category": "67" } )
    .sql();


// JOIN (LEFT, as argument):
// SELECT * FROM users u LEFT JOIN posts p ON p.user_id = u.id WHERE category = '67'

monologue()
    .select( "*", "users u" )
    .join( "LEFT", "posts p", { "p.user_id": "u.id" } )
    .where( { "category": "67" } )
    .sql();


// UNION
// Wrappers can be out of order BEFORE the UNION statement,
// wrappers after will be applied to the secondary statment
// output: SELECT username, email FROM users WHERE company_id = '1234' UNION SELECT screename, email_address FROM app_users WHERE company = 'coName'

monologue()
    .select('username, email', 'users')
    .where({"company_id": "1234"})
    .union('screename, email_address', 'app_users')
    .where({"company":"coName"})
    .sql();


// SELECT into outfile: the third param (OPTIONALLY ENCLOSED BY) is, as stated, optional. Just pass in the line ending and leave the 4th param out, the rest will be taken care of
// output: SELECT * FROM users WHERE company = 'general motors' INTO OUTFILE '/tmp/datafile' FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"' LINES TERMINATED BY '\n'

monologue()
	.select( "*", "users" )
	.where( { "company": "general motors" } )
	.file( "/tmp/datafile", ",", '"', "\\n" )
	.sql();


// SELECT into outfile: without third param
// output: SELECT * FROM users WHERE company = 'general motors' INTO OUTFILE '/tmp/datafile' FIELDS TERMINATED BY ','  LINES TERMINATED BY '\n'

monologue()
	.select( "*", "users")
	.where( { "company": "general motors" } )
	.file( "/tmp/datafile", ",", "\\n" )
	.sql();