science’s gists

science / paradata disavowal example.json

Created March 8, 2016 06:03

A sample json-ld schema.org structure with an optional "disavowal" paradata statement, refuting the metadata provided

	{
	"@id": "http://docsteach.org/activities/16/detail",
	"@type": "CreativeWork",
	"name": "The Constitution at Work",
	"thumbnailUrl": "http://docsteach.org/assets/lesson/000/000/022/22_medium.jpg",
	"url": "http://docsteach.org/activities/16/detail",
	"paradata": {
	"activity": {
	"actor": "organization",
	"verb": {

science / merged envelope.json

Last active March 17, 2016 18:56

LR 2.0 "merged" envelope returned from API - see line 8 for sample concept

	{
	"@id": "http://docsteach.org/activities/16/detail",
	"@type": "CreativeWork",
	"name": "The Constitution at Work",
	"thumbnailUrl": "http://docsteach.org/assets/lesson/000/000/022/22_medium.jpg",
	"url": "http://docsteach.org/activities/16/detail",
	"description": "In this activity students will analyze documents that span the course of American history to determine their connection to the U.S. Constitution. Students will then make connections between the documents they have examined and the big ideas found within the Constitution.",
	"typicalAgeRange":
	[
	{"value": "13-18",

science / LR 2.0 envelope with deleteVotes concept.json

Last active March 4, 2016 22:44

LR envelope as returned by API with example of a "deleteVotes" statement embedded - see line 85. Note this would be an unsigned envelope (or signed by the node)

	{
	"@id": "http://docsteach.org/activities/16/detail",
	"@type": "CreativeWork",
	"name": "The Constitution at Work",
	"thumbnailUrl": "http://docsteach.org/assets/lesson/000/000/022/22_medium.jpg",
	"url": "http://docsteach.org/activities/16/detail",
	"description": "In this activity students will analyze documents that span the course of American history to determine their connection to the U.S. Constitution. Students will then make connections between the documents they have examined and the big ideas found within the Constitution.",
	"typicalAgeRange": "13-18",
	"keywords": "History",
	"educationalAlignment": [

science / Sample LR envelope v2.json

Last active August 8, 2016 17:43

	# Signed LR v2 envelope
	# nb. `resource` = JWT encoded version of LR v2 envelope below
	# resource_format can must be one of: "json" or "xml in json"
	{
	"@context": "http://learningregistry.org/schemas/v2/envelope",
	"envelope_type": "resource_data",
	"envelope_version": "1.0.0",
	"envelope_id": "[URN or similar]",
	"envelope_community": "[LearningRegistry\|CredentialRegistry]",
	"resource": "[resource serialized as string]",

science / LR Sample JSON LD envelope

Last active March 2, 2016 22:34

	{
	"doc_type": "resource_data",
	"resource_locator": "http://docsteach.org/activities/16/detail",
	"digital_signature": {
	"key_location": ["http://goopen.sandbox.learningregistry.net/pubkey"],
	},
	"resource_data": "{\"@id\":\"http://docsteach.org/activities/16/detail\",\"@type\":\"CreativeWork\",\"name\":\"The Constitution at Work\",\"thumbnailUrl\":\"http://docsteach.org/assets/lesson/000/000/022/22_medium.jpg\",\"url\":\"http://docsteach.org/activities/16/detail\",\"description\":\"In this activity students will analyze documents that span the course of American history to determine their connection to the U.S. Constitution. Students will then make connections between the documents they have examined and the big ideas found within the Constitution.\",\"typicalAgeRange\":\"13-18\",\"keywords\":\"History\",\"educationalAlignment\":[{\"@type\":\"AlignmentObject\",\"alignmentType\":\"educationLevel\",\"educationalFramework\":\"US K-12 Grade Levels\",\"targetName\":\"8-12\"},{\"@type\":\"AlignmentObjec

science / RamCopyToPg

Created May 20, 2015 18:08

Demo code showing how to do in-memory copy to Postgres

	# pass in an appropriate AR Model for :reset_id_sequence option if you want to reset the sequence after loading
	# Options include:
	# :delete_existing_data => truncates all data before loading (default: false)
	# :sql_parameters => permits specifying sql parameters for COPY such as DELIMETER and NULL (default: '')
	# :skip_header_row => skips the first row of table when true (default: false)
	def TableLoader.copy_from_file_to_table(table_name, field_names, import_file_path, options = {})
	delete_existing_data = options[:delete_existing_data] \|\| false
	sql_parameters = options[:sql_parameters] \|\| ''
	skip_header_row = options[:skip_header_row] \|\| false
	# expects appropriate model for resetting sequence

science / lr-envelope.json

Created March 23, 2015 19:50

Example Learning Registry signed envelope

	{
	"doc_type": "resource_data",
	"resource_locator": "http://beyondpenguins.nsdl.org/issue/column.php?date=June2008&departmentid=curriculum&columnid=curriculum!learning",
	"update_timestamp": "2011-10-28T18:10:00.296692Z",
	"resource_data": "<nsdl_dc:nsdl_dc xmlns:nsdl_dc=\"http://ns.nsdl.org/nsdl_dc_v1.02/\" xmlns:dc=\"http://purl.org/dc/elements/1.1/\" xmlns:dct=\"http://purl.org/dc/terms/\" xmlns:ieee=\"http://www.ieee.org/xsd/LOMv1p0\" xmlns:xs=\"http://www.w3.org/2001/XMLSchema\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns=\"http://www.openarchives.org/OAI/2.0/\" schemaVersion=\"1.02.020\" xsi:schemaLocation=\"http://ns.nsdl.org/nsdl_dc_v1.02/ http://ns.nsdl.org/schemas/nsdl_dc/nsdl_dc_v1.02.xsd\">\n <dc:identifier xsi:type=\"dct:URI\">http://beyondpenguins.nsdl.org/issue/column.php?date=June2008&departmentid=curriculum&columnid=curriculum!learning</dc:identifier>\n <dc:title>Free Podcasts on Climate and Climate Change</dc:title>\n <dc:description>In partnership with t

science / read-json.rb

Created March 20, 2015 03:25

JSON Stream processing

	require 'yajl/ffi'
	json = File::open('lr-test.txt')
	@parser = Yajl::FFI::Parser.new
	@parser.start_document { puts "start document" }
	@parser.end_document { puts "end document" }
	@parser.start_object { \|o\|
	puts "start object"
	puts o.class if o
	puts 'start o end'
	}

science / monkey-patching-101

Created January 23, 2015 22:19

A very simple example of how to install a universal logger for all Objects, that responds differently depending on the Object class

	class Object
	def self.ltlog(obj = self)
	puts "class Hello"
	if obj.class == Class then
	puts obj.to_s
	else
	puts obj.class.to_s
	end
	if obj.kind_of?(String) then
	puts "Special string object handling here"

science / Rakefile

Created January 6, 2015 04:19

Simple Workstation CI system. Runs your code when changes are detected. Supports line-by-line debugging.

	require 'irb'
	require 'term/ansicolor'
	require 'open3'

	module LT
	module Term class << self
	include ::Term::ANSIColor
	end; end
	end
	# Monitors all files matching "test_*" in ./test and subfolders for changes

Steve Midgley science