Class: PG::CompositeCoder

Inherits:
Coder
  • Object
show all
Defined in:
ext/pg_coder.c,
lib/pg/coder.rb,
ext/pg_coder.c

Overview

This is the base class for all type cast classes of PostgreSQL types, that are made up of some sub type.

Direct Known Subclasses

CompositeDecoder, CompositeEncoder

Constant Summary

Constants inherited from Coder

PG::Coder::FORMAT_ERROR_MASK, PG::Coder::FORMAT_ERROR_TO_PARTIAL, PG::Coder::FORMAT_ERROR_TO_RAISE, PG::Coder::FORMAT_ERROR_TO_STRING, PG::Coder::TIMESTAMP_APP_LOCAL, PG::Coder::TIMESTAMP_APP_UTC, PG::Coder::TIMESTAMP_DB_LOCAL, PG::Coder::TIMESTAMP_DB_UTC

Instance Attribute Summary collapse

Attributes inherited from Coder

#name

Instance Method Summary collapse

Methods inherited from Coder

#==, #dup, #flags, #flags=, #format, #format=, #initialize, #inspect_short, #marshal_dump, #marshal_load, #oid, #oid=

Constructor Details

This class inherits a constructor from PG::Coder

Instance Attribute Details

#elements_type ⇒ Object (readonly)

Instance Method Details

#delimiter ⇒ String

The character that separates values within the composite type.

Returns:

  • (String) 


419
420
421
422
423
424
 
# File 'ext/pg_coder.c', line 419

static VALUE
pg_coder_delimiter_get(VALUE self)
{
	t_pg_composite_coder *this = RTYPEDDATA_DATA(self);
	return rb_str_new(&this->delimiter, 1);
}

#delimiter=(String) ⇒ Object

Specifies the character that separates values within the composite type. The default is a comma. This must be a single one-byte character.



401
402
403
404
405
406
407
408
409
410
411
 
# File 'ext/pg_coder.c', line 401

static VALUE
pg_coder_delimiter_set(VALUE self, VALUE delimiter)
{
	t_pg_composite_coder *this = RTYPEDDATA_DATA(self);
	rb_check_frozen(self);
	StringValue(delimiter);
	if(RSTRING_LEN(delimiter) != 1)
		rb_raise( rb_eArgError, "delimiter size must be one byte");
	this->delimiter = *RSTRING_PTR(delimiter);
	return delimiter;
}

#elements_type=(coder) ⇒ Object (readonly)

Specifies the PG::Coder object that is used to encode or decode the single elementes of this composite type.

If set to nil all values are encoded and decoded as String objects.



435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
 
# File 'ext/pg_coder.c', line 435

static VALUE
pg_coder_elements_type_set(VALUE self, VALUE elem_type)
{
	t_pg_composite_coder *this = RTYPEDDATA_DATA( self );

	rb_check_frozen(self);
	if ( NIL_P(elem_type) ){
		this->elem = NULL;
	} else if ( rb_obj_is_kind_of(elem_type, rb_cPG_Coder) ){
		this->elem = RTYPEDDATA_DATA( elem_type );
	} else {
		rb_raise( rb_eTypeError, "wrong elements type %s (expected some kind of PG::Coder)",
				rb_obj_classname( elem_type ) );
	}

	rb_iv_set( self, "@elements_type", elem_type );
	return elem_type;
}

#inspect ⇒ Object 



82
83
84
85
86
 
# File 'lib/pg/coder.rb', line 82

def inspect
	str = super
	str[-1,0] = " elements_type=#{elements_type.inspect} #{needs_quotation? ? 'needs' : 'no'} quotation"
	str
end

#needs_quotation=(Boolean) ⇒ Object

Specifies whether the assigned #elements_type requires quotation marks to be transferred safely. Encoding with #needs_quotation=false is somewhat faster.

The default is true. This option is ignored for decoding of values.



370
371
372
373
374
375
376
377
 
# File 'ext/pg_coder.c', line 370

static VALUE
pg_coder_needs_quotation_set(VALUE self, VALUE needs_quotation)
{
	t_pg_composite_coder *this = RTYPEDDATA_DATA(self);
	rb_check_frozen(self);
	this->needs_quotation = RTEST(needs_quotation);
	return needs_quotation;
}

#needs_quotation ⇒ Boolean

Specifies whether the assigned #elements_type requires quotation marks to be transferred safely.

Returns:

  • (Boolean) 


386
387
388
389
390
391
 
# File 'ext/pg_coder.c', line 386

static VALUE
pg_coder_needs_quotation_get(VALUE self)
{
	t_pg_composite_coder *this = RTYPEDDATA_DATA(self);
	return this->needs_quotation ? Qtrue : Qfalse;
}

#to_h ⇒ Object 



74
75
76
77
78
79
80
 
# File 'lib/pg/coder.rb', line 74

def to_h
	{ **super,
		elements_type: elements_type,
		needs_quotation: needs_quotation?,
		delimiter: delimiter,
	}
end