1. class
  2. Nette
  3. \
  4. Database
  5. \
  6. Table
  7. \
  8. Selection

Selection

class Selection implements Iterator, IRowContainer, ArrayAccess, Countable

Filtered table representation.

Selection is based on the great library NotORM http://www.notorm.com written by Jakub Vrana.

Properties

protected $explorer
protected $context

back compatibility
protected $conventions
protected $cache
protected $sqlBuilder
protected $name

table name
protected string|string[]|null $primary
protected $primarySequence

primary column sequence name, false for autodetection
protected ActiveRow[]|null $rows
protected ActiveRow[]|null $data
protected $dataRefreshed
protected $globalRefCache

cache array of Selection and GroupedSelection prototypes
protected $refCache
protected $generalCacheKey
protected $specificCacheKey
protected $aggregation

of [conditions => [key => ActiveRow]]; used by GroupedSelection
protected $accessedColumns
protected $previousAccessedColumns
protected $observeCache

should instance observe accessed columns caching
protected $keys

of primary key values

Methods

__construct(Explorer $explorer, Conventions $conventions, string $tableName, Storage|null $cacheStorage = null)

Creates filtered table representation.

__destruct()

No description

__clone()

No description

string
getName()

No description

string|array|null
getPrimary(bool $throw = true)

No description

string|null
getPrimarySequence()

No description

Selection
setPrimarySequence(string $sequence)

No description

string
getSql()

No description

array|bool
getPreviousAccessedColumns()

Loads cache of previous accessed columns and returns it.

SqlBuilder
getSqlBuilder()

No description

ActiveRow|null
get(mixed $key)

Returns row specified by primary key.

ActiveRow|null
fetch()

Fetches single row object.

mixed
fetchField(string|null $column = null) deprecated

Fetches single field.

array
fetchPairs(string|int|Closure|null $keyOrCallback = null, string|int|null $value = null)

Fetches all rows as associative array.

array
fetchAll()

Fetches all rows.

array
fetchAssoc(string $path)

Fetches all rows and returns associative tree.

Selection
select(string $columns, ...$params)

Adds select clause, more calls appends to the end.

Selection
wherePrimary(mixed $key)

Adds condition for primary key.

Selection
where(string|array $condition, ...$params)

Adds where condition, more calls appends with AND.

Selection
joinWhere(string $tableChain, string $condition, ...$params)

Adds ON condition when joining specified table, more calls appends with AND.

void
condition(string|array $condition, array $params, string|null $tableChain = null)

Adds condition, more calls appends with AND.

Selection
whereOr(array $parameters)

Adds where condition using the OR operator between parameters.

Selection
order(string $columns, ...$params)

Adds order clause, more calls appends to the end.

Selection
limit(int|null $limit, int|null $offset = null)

Sets limit clause, more calls rewrite old values.

Selection
page(int $page, int $itemsPerPage, $numOfPages = null)

Sets offset using page number, more calls rewrite old values.

Selection
group(string $columns, ...$params)

Sets group clause, more calls rewrite old value.

Selection
having(string $having, ...$params)

Sets having clause, more calls rewrite old value.

Selection
alias(string $tableChain, string $alias)

Aliases table. Example ':book:book_tag.tag', 'tg'

mixed
aggregation(string $function, string|null $groupFunction = null)

Executes aggregation function.

int
count(string|null $column = null)

Counts number of rows. If column is not provided returns count of result rows, otherwise runs new sql counting query.

mixed
min(string $column)

Returns minimum value from a column.

mixed
max(string $column)

Returns maximum value from a column.

mixed
sum(string $column)

Returns sum of values in a column.

void
execute()

No description

ActiveRow
createRow(array $row)

No description

Selection
createSelectionInstance(string|null $table = null)

No description

GroupedSelection
createGroupedSelectionInstance(string $table, string $column)

No description

ResultSet
query(string $query)

No description

void
emptyResultSet(bool $clearCache = true, bool $deleteReferencedCache = true)

No description

void
saveCacheState()

No description

Selection
getRefTable($refPath)

Returns Selection parent for caching.

void
loadRefCache()

Loads refCache references

string
getGeneralCacheKey()

Returns general cache key independent on query parameters or sql limit Used e.g. for previously accessed columns caching

string
getSpecificCacheKey()

Returns object specific cache key dependent on query parameters Used e.g. for reference memory caching

bool
accessColumn(string|null $key, bool $selectColumn = true)

No description

void
removeAccessColumn(string $key)

No description

bool
getDataRefreshed()

Returns if selection requeried for more columns.

ActiveRow|array|int|bool
insert(iterable $data)

Inserts row in a table. Returns ActiveRow or number of affected rows for Selection or table without primary key.

int
update(iterable $data)

Updates all rows in result set.

int
delete()

Deletes all rows in result set.

ActiveRow|false|null
getReferencedTable(ActiveRow $row, string|null $table, string|null $column = null)

Returns referenced row.

GroupedSelection|null
getReferencingTable(string $table, string|null $column = null, int|string|null $active = null)

Returns referencing rows.

void
rewind()

No description

ActiveRow|false
current()

No description

string|int
key()

No description

void
next()

No description

bool
valid()

No description

void
offsetSet(string $key, ActiveRow $value)

Mimic row.

ActiveRow|null
offsetGet(string $key)

Returns specified row.

bool
offsetExists(string $key)

Tests if row exists.

void
offsetUnset(string $key)

Removes row from result set.

Details

at line 73
__construct(Explorer $explorer, Conventions $conventions, string $tableName, Storage|null $cacheStorage = null)

Creates filtered table representation.

Parameters

Explorer $explorer
Conventions $conventions
string $tableName
Storage|null $cacheStorage

at line 92
__destruct()

No description

at line 98
__clone()

No description

at line 104
string getName()

No description

Return Value

string

at line 113
string|array|null getPrimary(bool $throw = true)

No description

Parameters

bool $throw

Return Value

string|array|null

at line 123
string|null getPrimarySequence()

No description

Return Value

string|null

at line 133
Selection setPrimarySequence(string $sequence)

No description

Parameters

string $sequence

Return Value

Selection

at line 140
string getSql()

No description

Return Value

string

at line 150
array|bool getPreviousAccessedColumns()

internal  
 

Loads cache of previous accessed columns and returns it.

Return Value

array|bool

at line 164
SqlBuilder getSqlBuilder()

internal  
 

No description

Return Value

SqlBuilder

at line 177
ActiveRow|null get(mixed $key)

Returns row specified by primary key.

Parameters

mixed $key

Return Value

ActiveRow|null

at line 188
ActiveRow|null fetch()

Fetches single row object.

Return Value

ActiveRow|null

at line 201
mixed fetchField(string|null $column = null) deprecated

deprecated

Fetches single field.

Parameters

string|null $column

Return Value

mixed

at line 219
array fetchPairs(string|int|Closure|null $keyOrCallback = null, string|int|null $value = null)

Fetches all rows as associative array.

Parameters

string|int|Closure|null $keyOrCallback
string|int|null $value

Return Value

array

at line 229
array fetchAll()

Fetches all rows.

Return Value

array

at line 238
array fetchAssoc(string $path)

Fetches all rows and returns associative tree.

Parameters

string $path

Return Value

array

at line 252
Selection select(string $columns, ...$params)

Adds select clause, more calls appends to the end.

Parameters

string $columns

for example "column, MD5(column) AS column_md5"
...$params

Return Value

Selection

at line 263
Selection wherePrimary(mixed $key)

Adds condition for primary key.

Parameters

mixed $key

Return Value

Selection

at line 287
Selection where(string|array $condition, ...$params)

Adds where condition, more calls appends with AND.

Parameters

string|array $condition

possibly containing ?
...$params

Return Value

Selection

at line 299
Selection joinWhere(string $tableChain, string $condition, ...$params)

Adds ON condition when joining specified table, more calls appends with AND.

Parameters

string $tableChain

table chain or table alias for which you need additional left join condition
string $condition

possibly containing ?
...$params

Return Value

Selection

at line 310
protected void condition(string|array $condition, array $params, string|null $tableChain = null)

Adds condition, more calls appends with AND.

Parameters

string|array $condition

possibly containing ?
array $params
string|null $tableChain

Return Value

void

at line 335
Selection whereOr(array $parameters)

Adds where condition using the OR operator between parameters.

More calls appends with AND.

Parameters

array $parameters

['column1' => 1, 'column2 > ?' => 2, 'full condition']

Return Value

Selection

Exceptions

InvalidArgumentException

at line 369
Selection order(string $columns, ...$params)

Adds order clause, more calls appends to the end.

Parameters

string $columns

for example 'column1, column2 DESC'
...$params

Return Value

Selection

at line 380
Selection limit(int|null $limit, int|null $offset = null)

Sets limit clause, more calls rewrite old values.

Parameters

int|null $limit
int|null $offset

Return Value

Selection

at line 391
Selection page(int $page, int $itemsPerPage, $numOfPages = null)

Sets offset using page number, more calls rewrite old values.

Parameters

int $page
int $itemsPerPage
$numOfPages

Return Value

Selection

at line 408
Selection group(string $columns, ...$params)

Sets group clause, more calls rewrite old value.

Parameters

string $columns
...$params

Return Value

Selection

at line 419
Selection having(string $having, ...$params)

Sets having clause, more calls rewrite old value.

Parameters

string $having
...$params

Return Value

Selection

at line 430
Selection alias(string $tableChain, string $alias)

Aliases table. Example ':book:book_tag.tag', 'tg'

Parameters

string $tableChain
string $alias

Return Value

Selection

at line 444
mixed aggregation(string $function, string|null $groupFunction = null)

Executes aggregation function.

Parameters

string $function

select call in "FUNCTION(column)" format
string|null $groupFunction

Return Value

mixed

at line 465
int count(string|null $column = null)

Counts number of rows. If column is not provided returns count of result rows, otherwise runs new sql counting query.

Parameters

string|null $column

Return Value

int

at line 479
mixed min(string $column)

Returns minimum value from a column.

Parameters

string $column

Return Value

mixed

at line 488
mixed max(string $column)

Returns maximum value from a column.

Parameters

string $column

Return Value

mixed

at line 497
mixed sum(string $column)

Returns sum of values in a column.

Parameters

string $column

Return Value

mixed

at line 506
protected void execute()

No description

Return Value

void

at line 550
protected ActiveRow createRow(array $row)

No description

Parameters

array $row

Return Value

ActiveRow

at line 556
Selection createSelectionInstance(string|null $table = null)

No description

Parameters

string|null $table

Return Value

Selection

at line 562
protected GroupedSelection createGroupedSelectionInstance(string $table, string $column)

No description

Parameters

string $table
string $column

Return Value

GroupedSelection

at line 568
protected ResultSet query(string $query)

No description

Parameters

string $query

Return Value

ResultSet

at line 574
protected void emptyResultSet(bool $clearCache = true, bool $deleteReferencedCache = true)

No description

Parameters

bool $clearCache
bool $deleteReferencedCache

Return Value

void

at line 596
protected void saveCacheState()

No description

Return Value

void

at line 624
protected Selection getRefTable($refPath)

Returns Selection parent for caching.

Parameters

$refPath

Return Value

Selection

at line 633
protected void loadRefCache()

Loads refCache references

Return Value

void

at line 642
protected string getGeneralCacheKey()

Returns general cache key independent on query parameters or sql limit Used e.g. for previously accessed columns caching

Return Value

string

at line 665
protected string getSpecificCacheKey()

Returns object specific cache key dependent on query parameters Used e.g. for reference memory caching

Return Value

string

at line 680
bool accessColumn(string|null $key, bool $selectColumn = true)

internal  
 

No description

Parameters

string|null $key
bool $selectColumn

Return Value

bool

if selection requeried for more columns.

at line 746
void removeAccessColumn(string $key)

internal  
 

No description

Parameters

string $key

Return Value

void

at line 757
bool getDataRefreshed()

Returns if selection requeried for more columns.

Return Value

bool

at line 771
ActiveRow|array|int|bool insert(iterable $data)

Inserts row in a table. Returns ActiveRow or number of affected rows for Selection or table without primary key.

Parameters

iterable $data

[$column => $value]|\Traversable|Selection for INSERT ... SELECT

Return Value

ActiveRow|array|int|bool

at line 852
int update(iterable $data)

Updates all rows in result set.

Joins in UPDATE are supported only in MySQL

Parameters

iterable $data

Return Value

int

number of affected rows

at line 873
int delete()

Deletes all rows in result set.

Return Value

int

number of affected rows

at line 886
ActiveRow|false|null getReferencedTable(ActiveRow $row, string|null $table, string|null $column = null)

Returns referenced row.

Parameters

ActiveRow $row
string|null $table
string|null $column

Return Value

ActiveRow|false|null

null if the row does not exist, false if the relationship does not exist

at line 933
GroupedSelection|null getReferencingTable(string $table, string|null $column = null, int|string|null $active = null)

Returns referencing rows.

Parameters

string $table
string|null $column
int|string|null $active

Return Value

GroupedSelection|null

at line 965
void rewind()

No description

Return Value

void

at line 974
ActiveRow|false current()

No description

Return Value

ActiveRow|false

at line 982
string|int key()

No description

Return Value

string|int

at line 988
void next()

No description

Return Value

void

at line 996
bool valid()

No description

Return Value

bool

at line 1010
void offsetSet(string $key, ActiveRow $value)

Mimic row.

Parameters

string $key
ActiveRow $value

Return Value

void

at line 1022
ActiveRow|null offsetGet(string $key)

Returns specified row.

Parameters

string $key

Return Value

ActiveRow|null

at line 1033
bool offsetExists(string $key)

Tests if row exists.

Parameters

string $key

Return Value

bool

at line 1044
void offsetUnset(string $key)

Removes row from result set.

Parameters

string $key

Return Value

void