Class PostgresSchemaDialect
Schema management/reflection features for Postgres.
Constants
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DEFAULT_SRID ¶
4326
Property Summary
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$_driver protected
Cake\Database\DriverThe driver instance being used.
Method Summary
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__construct() public
Constructor
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_applyTypeSpecificColumnConversion() protected
Tries to use a matching database type to convert a SQL column definition to an abstract type definition.
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_convertColumn() protected
Convert a column definition to the abstract types.
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_convertConstraint() protected
Add/update a constraint into the schema object.
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_convertConstraintColumns() protected
Convert foreign key constraints references to a valid stringified list
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_convertOnClause() protected
Convert string on clauses to the abstract ones.
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_defaultValue() protected
Manipulate the default value.
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_foreignOnClause() protected
Generate an ON clause for a foreign key.
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_getTypeSpecificColumnSql() protected
Tries to use a matching database type to generate the SQL fragment for a single column in a table.
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_keySql() protected
Helper method for generating key SQL snippets.
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addConstraintSql() public
Generate the SQL queries needed to add foreign key constraints to the table
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columnSql() public
Generate the SQL fragment for a single column in a table.
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constraintSql() public
Generate the SQL fragments for defining table constraints.
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convertColumnDescription() public
Convert field description results into abstract schema fields.
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convertForeignKeyDescription() public
Convert a foreign key description into constraints on the Table object.
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convertIndexDescription() public
Convert an index description results into abstract schema indexes or constraints.
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convertOptionsDescription() public
Convert options data into table options.
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createTableSql() public
Generate the SQL to create a table.
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describeColumnSql() public
Generate the SQL to describe a table.
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describeForeignKeySql() public
Generate the SQL to describe the foreign keys in a table.
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describeIndexSql() public
Generate the SQL to describe the indexes in a table.
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describeOptionsSql() public
Generate the SQL to describe table options
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dropConstraintSql() public
Generate the SQL queries needed to drop foreign key constraints from the table
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dropTableSql() public
Generate the SQL to drop a table.
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indexSql() public
Generate the SQL fragment for a single index in a table.
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listTablesSql() public
Generate the SQL to list the tables and views.
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listTablesWithoutViewsSql() public
Generate the SQL to list the tables, excluding all views.
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truncateTableSql() public
Generate the SQL to truncate a table.
Method Detail
__construct() ¶ public
__construct(Cake\Database\Driver $driver)Constructor
This constructor will connect the driver so that methods like columnSql() and others will fail when the driver has not been connected.
Parameters
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Cake\Database\Driver$driver The driver to use.
_applyTypeSpecificColumnConversion() ¶ protected
_applyTypeSpecificColumnConversion(string $columnType, array $definition): array|nullTries to use a matching database type to convert a SQL column definition to an abstract type definition.
Parameters
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string$columnType The column type.
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array$definition The column definition.
Returns
array|null_convertColumn() ¶ protected
_convertColumn(string $column): array<string, mixed>Convert a column definition to the abstract types.
The returned type will be a type that Cake\Database\TypeFactory can handle.
Parameters
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string$column The column type + length
Returns
array<string, mixed>Throws
Cake\Database\Exception\DatabaseExceptionwhen column cannot be parsed.
_convertConstraint() ¶ protected
_convertConstraint(Cake\Database\Schema\TableSchema $schema, string $name, string $type, array $row): voidAdd/update a constraint into the schema object.
Parameters
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Cake\Database\Schema\TableSchema$schema The table to update.
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string$name The index name.
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string$type The index type.
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array$row The metadata record to update with.
Returns
void_convertConstraintColumns() ¶ protected
_convertConstraintColumns(list<string>|string $references): stringConvert foreign key constraints references to a valid stringified list
Parameters
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list<string>|string$references The referenced columns of a foreign key constraint statement
Returns
string_convertOnClause() ¶ protected
_convertOnClause(string $clause): stringConvert string on clauses to the abstract ones.
Parameters
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string$clause
Returns
string_defaultValue() ¶ protected
_defaultValue(string|int|null $default): string|int|nullManipulate the default value.
Postgres includes sequence data and casting information in default values. We need to remove those.
Parameters
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string|int|null$default The default value.
Returns
string|int|null_foreignOnClause() ¶ protected
_foreignOnClause(string $on): stringGenerate an ON clause for a foreign key.
Parameters
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string$on The on clause
Returns
string_getTypeSpecificColumnSql() ¶ protected
_getTypeSpecificColumnSql(string $columnType, Cake\Database\Schema\TableSchemaInterface $schema, string $column): string|nullTries to use a matching database type to generate the SQL fragment for a single column in a table.
Parameters
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string$columnType The column type.
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Cake\Database\Schema\TableSchemaInterface$schema The table schema instance the column is in.
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string$column The name of the column.
Returns
string|null_keySql() ¶ protected
_keySql(string $prefix, array<string, mixed> $data): stringHelper method for generating key SQL snippets.
Parameters
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string$prefix The key prefix
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array<string, mixed>$data Key data.
Returns
stringaddConstraintSql() ¶ public
addConstraintSql(Cake\Database\Schema\TableSchema $schema): arrayGenerate the SQL queries needed to add foreign key constraints to the table
Parameters
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Cake\Database\Schema\TableSchema$schema
Returns
arraycolumnSql() ¶ public
columnSql(Cake\Database\Schema\TableSchema $schema, string $name): stringGenerate the SQL fragment for a single column in a table.
Parameters
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Cake\Database\Schema\TableSchema$schema -
string$name
Returns
stringconstraintSql() ¶ public
constraintSql(Cake\Database\Schema\TableSchema $schema, string $name): stringGenerate the SQL fragments for defining table constraints.
Parameters
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Cake\Database\Schema\TableSchema$schema -
string$name
Returns
stringconvertColumnDescription() ¶ public
convertColumnDescription(Cake\Database\Schema\TableSchema $schema, array $row): voidConvert field description results into abstract schema fields.
Parameters
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Cake\Database\Schema\TableSchema$schema -
array$row
Returns
voidconvertForeignKeyDescription() ¶ public
convertForeignKeyDescription(Cake\Database\Schema\TableSchema $schema, array $row): voidConvert a foreign key description into constraints on the Table object.
Parameters
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Cake\Database\Schema\TableSchema$schema -
array$row
Returns
voidconvertIndexDescription() ¶ public
convertIndexDescription(Cake\Database\Schema\TableSchema $schema, array $row): voidConvert an index description results into abstract schema indexes or constraints.
Parameters
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Cake\Database\Schema\TableSchema$schema -
array$row
Returns
voidconvertOptionsDescription() ¶ public
convertOptionsDescription(Cake\Database\Schema\TableSchema $schema, array $row): voidConvert options data into table options.
Parameters
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Cake\Database\Schema\TableSchema$schema Table instance.
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array$row The row of data.
Returns
voidcreateTableSql() ¶ public
createTableSql(Cake\Database\Schema\TableSchema $schema, list<string> $columns, list<string> $constraints, list<string> $indexes): list<string>Generate the SQL to create a table.
Parameters
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Cake\Database\Schema\TableSchema$schema -
list<string>$columns -
list<string>$constraints -
list<string>$indexes
Returns
list<string>describeColumnSql() ¶ public
describeColumnSql(string $tableName, array<string, mixed> $config): arrayGenerate the SQL to describe a table.
Parameters
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string$tableName -
array<string, mixed>$config
Returns
arraydescribeForeignKeySql() ¶ public
describeForeignKeySql(string $tableName, array<string, mixed> $config): arrayGenerate the SQL to describe the foreign keys in a table.
Parameters
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string$tableName -
array<string, mixed>$config
Returns
arraydescribeIndexSql() ¶ public
describeIndexSql(string $tableName, array<string, mixed> $config): arrayGenerate the SQL to describe the indexes in a table.
Parameters
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string$tableName -
array<string, mixed>$config
Returns
arraydescribeOptionsSql() ¶ public
describeOptionsSql(string $tableName, array<string, mixed> $config): arrayGenerate the SQL to describe table options
Parameters
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string$tableName Table name.
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array<string, mixed>$config The connection configuration.
Returns
arraydropConstraintSql() ¶ public
dropConstraintSql(Cake\Database\Schema\TableSchema $schema): arrayGenerate the SQL queries needed to drop foreign key constraints from the table
Parameters
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Cake\Database\Schema\TableSchema$schema
Returns
arraydropTableSql() ¶ public
dropTableSql(Cake\Database\Schema\TableSchema $schema): arrayGenerate the SQL to drop a table.
Parameters
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Cake\Database\Schema\TableSchema$schema Table instance
Returns
arrayindexSql() ¶ public
indexSql(Cake\Database\Schema\TableSchema $schema, string $name): stringGenerate the SQL fragment for a single index in a table.
Parameters
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Cake\Database\Schema\TableSchema$schema -
string$name
Returns
stringlistTablesSql() ¶ public
listTablesSql(array<string, mixed> $config): arrayGenerate the SQL to list the tables and views.
Parameters
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array<string, mixed>$config The connection configuration to use for getting tables from.
Returns
arraylistTablesWithoutViewsSql() ¶ public
listTablesWithoutViewsSql(array<string, mixed> $config): array<mixed>Generate the SQL to list the tables, excluding all views.
Parameters
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array<string, mixed>$config The connection configuration to use for getting tables from.
Returns
array<mixed>truncateTableSql() ¶ public
truncateTableSql(Cake\Database\Schema\TableSchema $schema): arrayGenerate the SQL to truncate a table.
Parameters
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Cake\Database\Schema\TableSchema$schema
Returns
array