module Oj::Rails

Module that provides rails and active support compatibility.

Public Class Methods

deoptimize(*classes) click to toggle source

Turn off Oj rails optimization on the specified classes.

  • classes [Class] a list of classes to deoptimize

static VALUE rails_deoptimize(int argc, VALUE *argv, VALUE self) {
    optimize(argc, argv, &ropts, false);
    string_writer_optimized = false;

    return Qnil;
}
encode(obj) click to toggle source
  • obj [Object] object to encode

Returns encoded object as a JSON string.

static VALUE rails_encode(int argc, VALUE *argv, VALUE self) {
    if (1 > argc) {
        rb_raise(rb_eArgError, "wrong number of arguments (0 for 1).");
    }
    if (1 == argc) {
        return encode(*argv, NULL, &oj_default_options, 0, NULL);
    } else {
        return encode(*argv, NULL, &oj_default_options, argc - 1, argv + 1);
    }
}
mimic_JSON() click to toggle source

Document-module: mimic_JSON

Sets the JSON method to use Oj similar to Oj.mimic_JSON except with the ActiveSupport monkey patches instead of the json gem monkey patches.

VALUE
rails_mimic_json(VALUE self) {
    VALUE json;

    if (rb_const_defined_at(rb_cObject, rb_intern("JSON"))) {
        json = rb_const_get_at(rb_cObject, rb_intern("JSON"));
    } else {
        json = rb_define_module("JSON");
    }
    oj_mimic_json_methods(json);
    // Setting the default mode breaks the prmoise in the docs not to.
    // oj_default_options.mode = RailsMode;

    return Qnil;
}
optimize(*classes) click to toggle source

Use Oj rails optimized routines to encode the specified classes. This ignores the as_json() method on the class and uses an internal encoding instead. Passing in no classes indicates all should use the optimized version of encoding for all previously optimized classes. Passing in the Object class set a global switch that will then use the optimized behavior for all classes.

  • classes [Class] a list of classes to optimize

static VALUE rails_optimize(int argc, VALUE *argv, VALUE self) {
    optimize(argc, argv, &ropts, true);
    string_writer_optimized = true;

    return Qnil;
}
optimized?(clas) click to toggle source

Returns true if the specified Class is being optimized.

static VALUE rails_optimized(VALUE self, VALUE clas) {
    ROpt ro = oj_rails_get_opt(&ropts, clas);

    if (NULL == ro) {
        return Qfalse;
    }
    return (ro->on) ? Qtrue : Qfalse;
}
set_decoder() click to toggle source

Sets the JSON.parse function to be the Oj::parse function which is json gem compatible.

static VALUE rails_set_decoder(VALUE self) {
    VALUE json;
    VALUE json_error;
    VALUE verbose;

    if (rb_const_defined_at(rb_cObject, rb_intern("JSON"))) {
        json = rb_const_get_at(rb_cObject, rb_intern("JSON"));
    } else {
        json = rb_define_module("JSON");
    }
    if (rb_const_defined_at(json, rb_intern("JSONError"))) {
        json_error = rb_const_get(json, rb_intern("JSONError"));
    } else {
        json_error = rb_define_class_under(json, "JSONError", rb_eStandardError);
    }
    if (rb_const_defined_at(json, rb_intern("ParserError"))) {
        oj_json_parser_error_class = rb_const_get(json, rb_intern("ParserError"));
    } else {
        oj_json_parser_error_class = rb_define_class_under(json, "ParserError", json_error);
    }
    // rb_undef_method doesn't work for modules or maybe sometimes
    // doesn't. Anyway setting verbose should hide the warning.
    verbose = rb_gv_get("$VERBOSE");
    rb_gv_set("$VERBOSE", Qfalse);
    rb_undef_method(json, "parse");
    rb_define_module_function(json, "parse", oj_mimic_parse, -1);
    rb_gv_set("$VERBOSE", verbose);

    return Qnil;
}
set_encoder() click to toggle source

Sets the ActiveSupport.encoder to Oj::Rails::Encoder and wraps some of the formatting globals used by ActiveSupport to allow the use of those globals in the Oj::Rails optimizations.

static VALUE rails_set_encoder(VALUE self) {
    VALUE active;
    VALUE json;
    VALUE encoding;
    VALUE pv;
    VALUE verbose;
    VALUE enc = resolve_classpath("ActiveSupport::JSON::Encoding");

    if (Qnil != enc) {
        escape_html = Qtrue == rb_iv_get(self, "@escape_html_entities_in_json");
        xml_time    = Qtrue == rb_iv_get(enc, "@use_standard_json_time_format");
    }
    if (rb_const_defined_at(rb_cObject, rb_intern("ActiveSupport"))) {
        active = rb_const_get_at(rb_cObject, rb_intern("ActiveSupport"));
    } else {
        rb_raise(rb_eStandardError, "ActiveSupport not loaded.");
    }
    rb_funcall(active, rb_intern("json_encoder="), 1, encoder_class);

    json     = rb_const_get_at(active, rb_intern("JSON"));
    encoding = rb_const_get_at(json, rb_intern("Encoding"));

    // rb_undef_method doesn't work for modules or maybe sometimes
    // doesn't. Anyway setting verbose should hide the warning.
    verbose = rb_gv_get("$VERBOSE");
    rb_gv_set("$VERBOSE", Qfalse);
    rb_undef_method(encoding, "use_standard_json_time_format=");
    rb_define_module_function(encoding, "use_standard_json_time_format=", rails_use_standard_json_time_format, 1);
    rb_undef_method(encoding, "use_standard_json_time_format");
    rb_define_module_function(encoding, "use_standard_json_time_format", rails_use_standard_json_time_format_get, 0);

    pv          = rb_iv_get(encoding, "@escape_html_entities_in_json");
    escape_html = Qtrue == pv;
    rb_undef_method(encoding, "escape_html_entities_in_json=");
    rb_define_module_function(encoding, "escape_html_entities_in_json=", rails_escape_html_entities_in_json, 1);
    rb_undef_method(encoding, "escape_html_entities_in_json");
    rb_define_module_function(encoding, "escape_html_entities_in_json", rails_escape_html_entities_in_json_get, 0);

    pv                              = rb_iv_get(encoding, "@time_precision");
    oj_default_options.sec_prec     = NUM2INT(pv);
    oj_default_options.sec_prec_set = true;
    rb_undef_method(encoding, "time_precision=");
    rb_define_module_function(encoding, "time_precision=", rails_time_precision, 1);
    rb_gv_set("$VERBOSE", verbose);

    return Qnil;
}