| Documentation

NodeQuery ▸
- Instance members
- #constructor
- #getQuery
QueryBuilder ▸
- Instance members
- #query
- #resetQuery
- #truncate
- #end
- #select
- #from
- #like
- #notLike
- #orLike
- #orNotLike
- #having
- #orHaving
- #where
- #orWhere
- #whereIsNull
- #whereIsNotNull
- #orWhereIsNull
- #orWhereIsNotNull
- #whereIn
- #orWhereIn
- #whereNotIn
- #orWhereNotIn
- #set
- #join
- #groupBy
- #orderBy
- #limit
- #groupStart
- #orGroupStart
- #orNotGroupStart
- #groupEnd
- #get
- #insert
- #insertBatch
- #update
- #delete
- #getCompiledSelect
- #getCompiledInsert
- #getCompiledUpdate
- #getCompiledDelete
Result ▸
- Instance members
- #rowCount
- #columnCount

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NodeQuery

Class for connection management

new NodeQuery(config: object)

Parameters

config (object) connection parameters

Instance Members

▸ constructor(config)

Constructor

constructor(config: object)

Parameters

config (object) connection parameters

Example

let nodeQuery = require('ci-node-query')({
	driver: 'mysql',
	connection: {
		host: 'localhost',
		user: 'root',
		password: '',
		database: 'mysql'
	}
});

let nodeQuery = require('ci-node-query')({
	driver: 'sqlite',
	connection: ':memory:'
});

▸ getQuery()

Return an existing query builder instance

getQuery(): QueryBuilder

Returns

QueryBuilder: The Query Builder object

QueryBuilder

Main object that builds SQL queries.

new QueryBuilder(Driver: Driver, Adapter: Adapter)

Extends QueryBuilderBase

Parameters

Driver (Driver) The syntax driver for the database

Adapter (Adapter) The database module adapter for running queries

Instance Members

▸ query(sql, [params], [callback])

Run an arbitrary sql query. Run as a prepared statement.

query(sql: string, params: [array], callback: [function]): (void | Promise)

Parameters

sql (string) The sql to execute

params ([array]) The query parameters

callback ([function]) Optional callback

Returns

(void | Promise): Returns a promise if no callback is supplied

▸ resetQuery()

Reset the object state for a new query

resetQuery(): void

Returns

void:

▸ truncate(table, [callback])

Empties the selected database table

truncate(table: string, callback: [function]): (void | Promise)

Parameters

table (string) the name of the table to truncate

callback ([function]) Optional callback

Returns

(void | Promise): Returns a promise if no callback is supplied

▸ end()

Closes the database connection for the current adapter

end(): void

Returns

void:

▸ select(fields)

Specify rows to select in the query

select(fields: (String | Array)): QueryBuilder

Parameters

fields ((String | Array)) The fields to select from the current table

Returns

QueryBuilder: The Query Builder object, for chaining

Example

query.select('foo, bar'); // Select multiple fields with a string

query.select(['foo', 'bar']); // Select multiple fileds with an array

▸ from(tableName)

Specify the database table to select from

from(tableName: String): QueryBuilder

Parameters

tableName (String) The table to use for the current query

Returns

QueryBuilder: The Query Builder object, for chaining

Example

query.from('tableName');

query.from('tableName t'); // Select the table with an alias

▸ like(field, val, [pos])

Add a 'like/ and like' clause to the query

like(field: String, val: String, pos: [String]): QueryBuilder

Parameters

field (String) The name of the field to compare to

val (String) The value to compare to

pos

([String]
            (default both)
            )

The placement of the wildcard character(s): before, after, or both

Returns

QueryBuilder: The Query Builder object, for chaining

▸ notLike(field, val, [pos])

Add a 'not like/ and not like' clause to the query

notLike(field: String, val: String, pos: [String]): QueryBuilder

Parameters

field (String) The name of the field to compare to

val (String) The value to compare to

pos

([String]
            (default both)
            )

The placement of the wildcard character(s): before, after, or both

Returns

QueryBuilder: The Query Builder object, for chaining

▸ orLike(field, val, [pos])

Add an 'or like' clause to the query

orLike(field: String, val: String, pos: [String]): QueryBuilder

Parameters

field (String) The name of the field to compare to

val (String) The value to compare to

pos

([String]
            (default both)
            )

The placement of the wildcard character(s): before, after, or both

Returns

QueryBuilder: The Query Builder object, for chaining

▸ orNotLike(field, val, [pos])

Add an 'or not like' clause to the query

orNotLike(field: String, val: String, pos: [String]): QueryBuilder

Parameters

field (String) The name of the field to compare to

val (String) The value to compare to

pos

([String]
            (default both)
            )

The placement of the wildcard character(s): before, after, or both

Returns

QueryBuilder: The Query Builder object, for chaining

▸ having(key, [val])

Add a 'having' clause

having(key: (String | Object), val: [(String | Number)]): QueryBuilder

Parameters

key ((String | Object)) The name of the field and the comparision operator, or an object

val ([(String | Number)]) The value to compare if the value of key is a string

Returns

QueryBuilder: The Query Builder object, for chaining

▸ orHaving(key, [val])

Add an 'or having' clause

orHaving(key: (String | Object), val: [(String | Number)]): QueryBuilder

Parameters

key ((String | Object)) The name of the field and the comparision operator, or an object

val ([(String | Number)]) The value to compare if the value of key is a string

Returns

QueryBuilder: The Query Builder object, for chaining

▸ where(key, [val])

Set a 'where' clause

where(key: (String | Object), val: [(String | Number)]): QueryBuilder

Parameters

key ((String | Object)) The name of the field and the comparision operator, or an object

val ([(String | Number)]) The value to compare if the value of key is a string

Returns

QueryBuilder: The Query Builder object, for chaining

▸ orWhere(key, [val])

Set a 'or where' clause

orWhere(key: (String | Object), val: [(String | Number)]): QueryBuilder

Parameters

key ((String | Object)) The name of the field and the comparision operator, or an object

val ([(String | Number)]) The value to compare if the value of key is a string

Returns

QueryBuilder: The Query Builder object, for chaining

▸ whereIsNull(field)

Select a field that is Null

whereIsNull(field: String): QueryBuilder

Parameters

field (String) The name of the field that has a NULL value

Returns

QueryBuilder: The Query Builder object, for chaining

▸ whereIsNotNull(field)

Specify that a field IS NOT NULL

whereIsNotNull(field: String): QueryBuilder

Parameters

field (String) The name so the field that is not to be null

Returns

QueryBuilder: The Query Builder object, for chaining

▸ orWhereIsNull(field)

Field is null prefixed with 'OR'

orWhereIsNull(field: String): QueryBuilder

Parameters

field (String) The name of the field

Returns

QueryBuilder: The Query Builder object, for chaining

▸ orWhereIsNotNull(field)

Field is not null prefixed with 'OR'

orWhereIsNotNull(field: String): QueryBuilder

Parameters

field (String) The name of the field

Returns

QueryBuilder: The Query Builder object, for chaining

▸ whereIn(key, values)

Set a 'where in' clause

whereIn(key: String, values: Array): QueryBuilder

Parameters

key (String) the field to search

values (Array) the array of items to search in

Returns

QueryBuilder: The Query Builder object, for chaining

▸ orWhereIn(key, values)

Set a 'or where in' clause

orWhereIn(key: String, values: Array): QueryBuilder

Parameters

key (String) the field to search

values (Array) the array of items to search in

Returns

QueryBuilder: The Query Builder object, for chaining

▸ whereNotIn(key, values)

Set a 'where not in' clause

whereNotIn(key: String, values: Array): QueryBuilder

Parameters

key (String) the field to search

values (Array) the array of items to search in

Returns

QueryBuilder: The Query Builder object, for chaining

▸ orWhereNotIn(key, values)

Set a 'or where not in' clause

orWhereNotIn(key: String, values: Array): QueryBuilder

Parameters

key (String) the field to search

values (Array) the array of items to search in

Returns

QueryBuilder: The Query Builder object, for chaining

▸ set(key, [val])

Set values for insertion or updating

set(key: (String | Object), val: [String]): QueryBuilder

Parameters

key ((String | Object)) The key or object to use

val ([String]) The value if using a scalar key

Returns

QueryBuilder: The Query Builder object, for chaining

Example

query.set('foo', 'bar'); // Set a key, value pair

query.set({foo:'bar'}); // Set with an object

▸ join(table, cond, [type])

Add a join clause to the query

join(table: String, cond: String, type: [String]): QueryBuilder

Parameters

table (String) The table you are joining

cond (String) The join condition.

type

([String]
            (default 'inner')
            )

The type of join, which defaults to inner

Returns

QueryBuilder: The Query Builder object, for chaining

▸ groupBy(field)

Group the results by the selected field(s)

groupBy(field: (String | Array)): QueryBuilder

Parameters

field ((String | Array)) The name of the field to group by

Returns

QueryBuilder: The Query Builder object, for chaining

▸ orderBy(field, [type])

Order the results by the selected field(s)

orderBy(field: String, type: [String]): QueryBuilder

Parameters

field (String) The field(s) to order by

type

([String]
            (default 'ASC')
            )

The order direction, ASC or DESC

Returns

QueryBuilder: The Query Builder object, for chaining

▸ limit(limit, [offset])

Put a limit on the query

limit(limit: Number, offset: [Number]): QueryBuilder

Parameters

limit (Number) The maximum number of rows to fetch

offset ([Number]) The row number to start from

Returns

QueryBuilder: The Query Builder object, for chaining

▸ groupStart()

Adds an open paren to the current query for logical grouping

groupStart(): QueryBuilder

Returns

QueryBuilder: The Query Builder object, for chaining

▸ orGroupStart()

Adds an open paren to the current query for logical grouping, prefixed with 'OR'

orGroupStart(): QueryBuilder

Returns

QueryBuilder: The Query Builder object, for chaining

▸ orNotGroupStart()

Adds an open paren to the current query for logical grouping, prefixed with 'OR NOT'

orNotGroupStart(): QueryBuilder

Returns

QueryBuilder: The Query Builder object, for chaining

▸ groupEnd()

Ends a logical grouping started with one of the groupStart methods

groupEnd(): QueryBuilder

Returns

QueryBuilder: The Query Builder object, for chaining

▸ get([table], [limit], [offset], [callback])

Get the results of the compiled query

get(table: [String], limit: [Number], offset: [Number], callback: [Function]): (void | Promise)

Parameters

table ([String]) The table to select from

limit ([Number]) A limit for the query

offset ([Number]) An offset for the query

callback ([Function]) A callback for receiving the result

Returns

(void | Promise): If no callback is passed, a promise is returned

Example

query.get('table_name').then(promiseCallback); // Get all the rows in the table

query.get('table_name', 5, callback); // Get 5 rows from the table

query.get(callback); // Get the results of a query generated with other methods

▸ insert(table, [data], [callback])

Run the generated insert query

insert(table: String, data: [Object], callback: [Function]): (void | Promise)

Parameters

table (String) The table to insert into

data ([Object]) Data to insert, if not already added with the 'set' method

callback ([Function]) Callback for handling response from the database

Returns

(void | Promise): If no callback is passed, a promise is returned

▸ insertBatch(table, data, [callback])

Insert multiple sets of rows at a time

insertBatch(table: String, data: Array, callback: [Function]): (void | Promise)

Parameters

table (String) The table to insert into

data (Array) The array of objects containing data rows to insert

callback ([Function]) Callback for handling database response

Returns

(void | Promise): If no callback is passed, a promise is returned

Example

query.insertBatch('foo',[{id:1,val:'bar'},{id:2,val:'baz'}], callbackFunction);

query.insertBatch('foo',[{id:1,val:'bar'},{id:2,val:'baz'}])
.then(promiseCallback);

▸ update(table, [data], [callback])

Run the generated update query

update(table: String, data: [Object], callback: [Function]): (void | Promise)

Parameters

table (String) The table to insert into

data ([Object]) Data to insert, if not already added with the 'set' method

callback ([Function]) Callback for handling response from the database

Returns

(void | Promise): If no callback is passed, a promise is returned

▸ delete(table, [where], [callback])

Run the generated delete query

delete(table: String, where: [Object], callback: [Function]): (void | Promise)

Parameters

table (String) The table to insert into

where ([Object]) Where clause for delete statement

callback ([Function]) Callback for handling response from the database

Returns

(void | Promise): If no callback is passed, a promise is returned

▸ getCompiledSelect([table], [reset])

Return generated select query SQL

getCompiledSelect(table: [String], reset: [Boolean]): String

Parameters

table ([String]) the name of the table to retrieve from

reset

([Boolean]
            (default true)
            )

Whether to reset the query builder so another query can be built

Returns

String: The compiled sql statement

▸ getCompiledInsert(table, [reset])

Return generated insert query SQL

getCompiledInsert(table: String, reset: [Boolean]): String

Parameters

table (String) the name of the table to insert into

reset

([Boolean]
            (default true)
            )

Whether to reset the query builder so another query can be built

Returns

String: The compiled sql statement

▸ getCompiledUpdate(table, [reset])

Return generated update query SQL

getCompiledUpdate(table: String, reset: [Boolean]): String

Parameters

table (String) the name of the table to update

reset

([Boolean]
            (default true)
            )

Whether to reset the query builder so another query can be built

Returns

String: The compiled sql statement

▸ getCompiledDelete(table, [reset])

Return generated delete query SQL

getCompiledDelete(table: String, reset: [Boolean]): String

Parameters

table (String) the name of the table to delete from

reset

([Boolean]
            (default true)
            )

Whether to reset the query builder so another query can be built

Returns

String: The compiled sql statement

Result

Query result object

new Result(rows: Array, columns: Array)

Parameters

rows (Array) the data rows of the result

columns (Array) the column names in the result

Instance Members

▸ rowCount()

Get the number of rows returned by the query

rowCount(): Number

Returns

Number: the number of rows in the result

▸ columnCount()

Get the number of columns returned by the query

columnCount(): Number

Returns

Number: the number of columns in the result