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f70a73c9a2eeae06683e88e845c30196dc677fe9
codeocean/db/schema.rb
Sebastian Serth 8fc5123bae Exclusively lock Runners during code executions 
Previously, the same runner could be used multiple times with different submissions simultaneously. This, however, yielded errors, for example when one submission time oud (causing the running to be deleted) while another submission was still executed.

Admin actions, such as the shell, can be still executed regardless of any other code execution.

Fixes CODEOCEAN-HG
Fixes openHPI/poseidon#423
2023-10-31 12:35:24 +01:00

703 lines
28 KiB
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# This file is auto-generated from the current state of the database. Instead
# of editing this file, please use the migrations feature of Active Record to
# incrementally modify your database, and then regenerate this schema definition.
#
# This file is the source Rails uses to define your schema when running `bin/rails
# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
# be faster and is potentially less error prone than running all of your
# migrations from scratch. Old migrations may fail to apply correctly if those
# migrations use external dependencies or application code.
#
# It's strongly recommended that you check this file into your version control system.
ActiveRecord::Schema[7.1].define(version: 2023_10_29_172331) do
# These are extensions that must be enabled in order to support this database
enable_extension "pg_trgm"
enable_extension "pgcrypto"
enable_extension "plpgsql"
create_table "anomaly_notifications", id: :serial, force: :cascade do |t|
t.integer "contributor_id", null: false
t.string "contributor_type", null: false
t.integer "exercise_id", null: false
t.integer "exercise_collection_id", null: false
t.jsonb "reason"
t.datetime "created_at"
t.datetime "updated_at"
t.index ["contributor_type", "contributor_id"], name: "index_anomaly_notifications_on_contributor"
t.index ["exercise_collection_id"], name: "index_anomaly_notifications_on_exercise_collection_id"
t.index ["exercise_id"], name: "index_anomaly_notifications_on_exercise_id"
end
create_table "authentication_tokens", id: :uuid, default: -> { "gen_random_uuid()" }, force: :cascade do |t|
t.string "shared_secret", null: false
t.string "user_type", null: false
t.bigint "user_id", null: false
t.datetime "expire_at", null: false
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.bigint "study_group_id"
t.index ["shared_secret"], name: "index_authentication_tokens_on_shared_secret", unique: true
t.index ["study_group_id"], name: "index_authentication_tokens_on_study_group_id"
t.index ["user_type", "user_id"], name: "index_authentication_tokens_on_user"
end
create_table "codeharbor_links", id: :serial, force: :cascade do |t|
t.string "api_key"
t.datetime "created_at"
t.datetime "updated_at"
t.integer "user_id"
t.string "push_url"
t.string "check_uuid_url"
t.string "user_type"
t.index ["user_type", "user_id"], name: "index_codeharbor_links_on_user_type_and_user_id"
end
create_table "comments", id: :serial, force: :cascade do |t|
t.integer "user_id"
t.integer "file_id"
t.string "user_type"
t.integer "row"
t.integer "column"
t.text "text"
t.datetime "created_at"
t.datetime "updated_at"
t.index ["file_id"], name: "index_comments_on_file_id"
t.index ["user_id"], name: "index_comments_on_user_id"
end
create_table "community_solution_contributions", force: :cascade do |t|
t.bigint "community_solution_id", null: false
t.bigint "study_group_id"
t.string "user_type", null: false
t.bigint "user_id", null: false
t.bigint "community_solution_lock_id", null: false
t.boolean "proposed_changes", null: false
t.boolean "timely_contribution", null: false
t.boolean "autosave", null: false
t.interval "working_time", null: false
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.index ["community_solution_id", "timely_contribution", "autosave", "proposed_changes"], name: "index_community_solution_valid_contributions"
t.index ["community_solution_lock_id"], name: "index_community_solution_contributions_lock"
t.index ["user_type", "user_id"], name: "index_community_solution_contributions_on_user"
end
create_table "community_solution_locks", force: :cascade do |t|
t.bigint "community_solution_id", null: false
t.string "user_type", null: false
t.bigint "user_id", null: false
t.datetime "locked_until"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.index ["community_solution_id", "locked_until"], name: "index_community_solution_locks_until", unique: true
t.index ["user_type", "user_id"], name: "index_community_solution_locks_on_user"
end
create_table "community_solutions", force: :cascade do |t|
t.bigint "exercise_id", null: false
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.index ["exercise_id"], name: "index_community_solutions_on_exercise_id"
end
create_table "consumers", id: :serial, force: :cascade do |t|
t.string "name"
t.datetime "created_at"
t.datetime "updated_at"
t.string "oauth_key"
t.string "oauth_secret"
t.integer "rfc_visibility", limit: 2, default: 0, null: false, comment: "Used as enum in Rails"
end
create_table "error_template_attributes", id: :serial, force: :cascade do |t|
t.string "key"
t.string "regex"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.text "description"
t.boolean "important"
end
create_table "error_template_attributes_templates", id: false, force: :cascade do |t|
t.integer "error_template_id", null: false
t.integer "error_template_attribute_id", null: false
end
create_table "error_templates", id: :serial, force: :cascade do |t|
t.integer "execution_environment_id"
t.string "name"
t.string "signature"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.text "description"
t.text "hint"
end
create_table "events", id: :serial, force: :cascade do |t|
t.string "category"
t.string "data"
t.integer "user_id"
t.string "user_type"
t.integer "exercise_id"
t.integer "file_id"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.bigint "programming_group_id"
t.bigint "study_group_id"
t.index ["programming_group_id"], name: "index_events_on_programming_group_id"
t.index ["study_group_id"], name: "index_events_on_study_group_id"
end
create_table "events_synchronized_editor", id: :uuid, default: -> { "gen_random_uuid()" }, force: :cascade do |t|
t.bigint "programming_group_id", null: false
t.bigint "study_group_id", null: false
t.string "user_type", null: false
t.bigint "user_id", null: false
t.integer "action", limit: 2, default: 0, null: false, comment: "Used as enum in Rails"
t.integer "status", limit: 2, comment: "Used as enum in Rails"
t.bigint "file_id"
t.integer "editor_action", limit: 2, comment: "Used as enum in Rails"
t.integer "range_start_row"
t.integer "range_start_column"
t.integer "range_end_row"
t.integer "range_end_column"
t.text "lines", array: true
t.jsonb "data"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.uuid "session_id", null: false
t.index ["file_id"], name: "index_events_synchronized_editor_on_file_id"
t.index ["programming_group_id"], name: "index_events_synchronized_editor_on_programming_group_id"
t.index ["study_group_id"], name: "index_events_synchronized_editor_on_study_group_id"
t.index ["user_type", "user_id"], name: "index_events_synchronized_editor_on_user"
end
create_table "execution_environments", id: :serial, force: :cascade do |t|
t.string "docker_image"
t.string "name"
t.datetime "created_at"
t.datetime "updated_at"
t.string "run_command"
t.string "test_command"
t.string "testing_framework"
t.text "help"
t.integer "permitted_execution_time"
t.integer "user_id"
t.string "user_type"
t.integer "pool_size"
t.integer "file_type_id"
t.integer "memory_limit"
t.boolean "network_enabled"
t.integer "cpu_limit", default: 20, null: false
t.integer "exposed_ports", default: [], array: true
t.boolean "privileged_execution", default: false, null: false
end
create_table "exercise_collection_items", id: :serial, force: :cascade do |t|
t.integer "exercise_collection_id"
t.integer "exercise_id"
t.integer "position", default: 0, null: false
t.index ["exercise_collection_id"], name: "index_exercise_collection_items_on_exercise_collection_id"
t.index ["exercise_id"], name: "index_exercise_collection_items_on_exercise_id"
end
create_table "exercise_collections", id: :serial, force: :cascade do |t|
t.string "name"
t.datetime "created_at"
t.datetime "updated_at"
t.boolean "use_anomaly_detection", default: false
t.integer "user_id"
t.string "user_type"
t.index ["user_type", "user_id"], name: "index_exercise_collections_on_user_type_and_user_id"
end
create_table "exercise_tags", id: :serial, force: :cascade do |t|
t.integer "exercise_id"
t.integer "tag_id"
t.integer "factor", default: 1
end
create_table "exercise_tips", force: :cascade do |t|
t.bigint "exercise_id", null: false
t.bigint "tip_id", null: false
t.integer "rank", null: false
t.bigint "parent_exercise_tip_id"
t.index ["exercise_id", "rank"], name: "index_exercise_tips_on_exercise_id_and_rank"
t.index ["exercise_id"], name: "index_exercise_tips_on_exercise_id"
t.index ["parent_exercise_tip_id"], name: "index_exercise_tips_on_parent_exercise_tip_id"
t.index ["tip_id"], name: "index_exercise_tips_on_tip_id"
end
create_table "exercises", id: :serial, force: :cascade do |t|
t.text "description"
t.integer "execution_environment_id"
t.string "title"
t.datetime "created_at"
t.datetime "updated_at"
t.integer "user_id"
t.text "instructions"
t.boolean "public"
t.string "user_type"
t.string "token"
t.boolean "hide_file_tree"
t.boolean "allow_file_creation"
t.boolean "allow_auto_completion", default: false
t.integer "expected_difficulty", default: 1
t.uuid "uuid"
t.boolean "unpublished", default: false
t.datetime "submission_deadline"
t.datetime "late_submission_deadline"
t.string "internal_title"
t.index ["id"], name: "index_exercises_on_id"
t.index ["id"], name: "index_unpublished_exercises", where: "(NOT unpublished)"
t.index ["internal_title"], name: "index_exercises_on_internal_title", opclass: :gin_trgm_ops, using: :gin
t.index ["title"], name: "index_exercises_on_title", opclass: :gin_trgm_ops, using: :gin
end
create_table "exercises_proxy_exercises", id: false, force: :cascade do |t|
t.integer "proxy_exercise_id"
t.integer "exercise_id"
t.datetime "created_at"
t.datetime "updated_at"
t.index ["exercise_id"], name: "index_exercises_proxy_exercises_on_exercise_id"
t.index ["proxy_exercise_id"], name: "index_exercises_proxy_exercises_on_proxy_exercise_id"
end
create_table "external_users", id: :serial, force: :cascade do |t|
t.integer "consumer_id"
t.string "email"
t.string "external_id"
t.string "name"
t.datetime "created_at"
t.datetime "updated_at"
t.boolean "platform_admin", default: false, null: false
end
create_table "file_templates", id: :serial, force: :cascade do |t|
t.string "name"
t.text "content"
t.integer "file_type_id"
t.datetime "created_at"
t.datetime "updated_at"
end
create_table "file_types", id: :serial, force: :cascade do |t|
t.string "editor_mode"
t.string "file_extension"
t.integer "indent_size"
t.string "name"
t.integer "user_id"
t.datetime "created_at"
t.datetime "updated_at"
t.boolean "executable"
t.boolean "renderable"
t.string "user_type"
t.boolean "binary"
end
create_table "files", id: :serial, force: :cascade do |t|
t.text "content"
t.integer "context_id"
t.string "context_type"
t.integer "file_id"
t.integer "file_type_id"
t.boolean "hidden"
t.string "name"
t.boolean "read_only"
t.datetime "created_at"
t.datetime "updated_at"
t.string "native_file"
t.string "role"
t.string "hashed_content"
t.string "feedback_message"
t.float "weight"
t.string "path"
t.integer "file_template_id"
t.boolean "hidden_feedback", default: false, null: false
t.index ["context_id", "context_type"], name: "index_files_on_context_id_and_context_type"
end
create_table "internal_users", id: :serial, force: :cascade do |t|
t.integer "consumer_id"
t.string "email"
t.string "name"
t.datetime "created_at"
t.datetime "updated_at"
t.string "crypted_password"
t.string "salt"
t.integer "failed_logins_count", default: 0
t.datetime "lock_expires_at"
t.string "unlock_token"
t.string "remember_me_token"
t.datetime "remember_me_token_expires_at"
t.string "reset_password_token"
t.datetime "reset_password_token_expires_at"
t.datetime "reset_password_email_sent_at"
t.string "activation_state"
t.string "activation_token"
t.datetime "activation_token_expires_at"
t.boolean "platform_admin", default: false, null: false
t.index ["activation_token"], name: "index_internal_users_on_activation_token"
t.index ["email"], name: "index_internal_users_on_email", unique: true
t.index ["remember_me_token"], name: "index_internal_users_on_remember_me_token"
t.index ["reset_password_token"], name: "index_internal_users_on_reset_password_token"
end
create_table "interventions", id: :serial, force: :cascade do |t|
t.string "name"
t.text "markup"
t.datetime "created_at"
t.datetime "updated_at"
end
create_table "linter_check_runs", force: :cascade do |t|
t.bigint "linter_check_id", null: false
t.string "scope"
t.integer "line"
t.text "result"
t.bigint "testrun_id", null: false
t.bigint "file_id", null: false
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.index ["file_id"], name: "index_linter_check_runs_on_file_id"
t.index ["linter_check_id"], name: "index_linter_check_runs_on_linter_check_id"
t.index ["testrun_id"], name: "index_linter_check_runs_on_testrun_id"
end
create_table "linter_checks", force: :cascade do |t|
t.string "name", null: false
t.string "code", null: false
t.string "severity"
end
create_table "lti_parameters", force: :cascade do |t|
t.integer "external_user_id", null: false
t.integer "exercise_id", null: false
t.jsonb "lti_parameters", default: {}, null: false
t.datetime "created_at"
t.datetime "updated_at"
t.bigint "study_group_id"
t.index ["external_user_id", "study_group_id", "exercise_id"], name: "index_lti_params_on_external_user_and_study_group_and_exercise", unique: true
t.index ["external_user_id"], name: "index_lti_parameters_on_external_user_id"
t.index ["study_group_id"], name: "index_lti_parameters_on_study_group_id"
end
create_table "pair_programming_exercise_feedbacks", force: :cascade do |t|
t.bigint "exercise_id", null: false
t.bigint "submission_id", null: false
t.string "user_type", null: false
t.bigint "user_id", null: false
t.bigint "programming_group_id"
t.bigint "study_group_id", null: false
t.integer "difficulty"
t.integer "user_estimated_worktime"
t.integer "reason_work_alone"
t.float "normalized_score"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.index ["exercise_id"], name: "index_pair_programming_exercise_feedbacks_on_exercise_id"
t.index ["programming_group_id"], name: "pp_feedback_programming_group"
t.index ["study_group_id"], name: "index_pair_programming_exercise_feedbacks_on_study_group_id"
t.index ["submission_id"], name: "index_pair_programming_exercise_feedbacks_on_submission_id"
t.index ["user_type", "user_id"], name: "index_pair_programming_exercise_feedbacks_on_user"
end
create_table "pair_programming_waiting_users", id: :uuid, default: -> { "gen_random_uuid()" }, force: :cascade do |t|
t.string "user_type", null: false
t.bigint "user_id", null: false
t.bigint "exercise_id", null: false
t.bigint "programming_group_id"
t.integer "status", limit: 2, null: false, comment: "Used as enum in Rails"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.index ["exercise_id"], name: "index_pair_programming_waiting_users_on_exercise_id"
t.index ["programming_group_id"], name: "index_pair_programming_waiting_users_on_programming_group_id"
t.index ["user_type", "user_id"], name: "index_pair_programming_waiting_users_on_user"
end
create_table "programming_group_memberships", id: :uuid, default: -> { "gen_random_uuid()" }, force: :cascade do |t|
t.bigint "programming_group_id", null: false
t.string "user_type", null: false
t.bigint "user_id", null: false
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.index ["programming_group_id"], name: "index_programming_group_memberships_on_programming_group_id"
t.index ["user_type", "user_id"], name: "index_programming_group_memberships_on_user"
end
create_table "programming_groups", force: :cascade do |t|
t.bigint "exercise_id", null: false
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.index ["exercise_id"], name: "index_programming_groups_on_exercise_id"
end
create_table "proxy_exercises", id: :serial, force: :cascade do |t|
t.string "title"
t.string "description"
t.string "token"
t.datetime "created_at"
t.datetime "updated_at"
t.string "user_type"
t.bigint "user_id"
t.boolean "public", default: false, null: false
t.integer "algorithm", limit: 2, default: 0, null: false, comment: "Used as enum in Rails"
t.index ["user_type", "user_id"], name: "index_proxy_exercises_on_user_type_and_user_id"
end
create_table "remote_evaluation_mappings", id: :serial, force: :cascade do |t|
t.integer "user_id", null: false
t.integer "exercise_id", null: false
t.string "validation_token", null: false
t.datetime "created_at"
t.datetime "updated_at"
t.string "user_type"
t.bigint "study_group_id"
t.index ["study_group_id"], name: "index_remote_evaluation_mappings_on_study_group_id"
end
create_table "request_for_comments", id: :serial, force: :cascade do |t|
t.integer "user_id", null: false
t.integer "exercise_id", null: false
t.integer "file_id", null: false
t.datetime "created_at"
t.datetime "updated_at"
t.string "user_type"
t.text "question"
t.boolean "solved", default: false
t.integer "submission_id"
t.text "thank_you_note"
t.boolean "full_score_reached", default: false
t.integer "times_featured", default: 0
t.index ["exercise_id", "created_at"], name: "index_unresolved_recommended_rfcs", where: "(((NOT solved) OR (solved IS NULL)) AND ((question IS NOT NULL) AND (question <> ''::text)))"
t.index ["exercise_id"], name: "index_request_for_comments_on_exercise_id"
t.index ["submission_id"], name: "index_request_for_comments_on_submission_id"
t.index ["user_id", "user_type", "created_at"], name: "index_rfc_on_user_and_created_at", order: { created_at: :desc }
end
create_table "runners", force: :cascade do |t|
t.string "runner_id"
t.bigint "execution_environment_id"
t.string "contributor_type"
t.bigint "contributor_id"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.datetime "reserved_until"
t.index ["contributor_type", "contributor_id"], name: "index_runners_on_user"
t.index ["execution_environment_id"], name: "index_runners_on_execution_environment_id"
end
create_table "searches", id: :serial, force: :cascade do |t|
t.integer "exercise_id", null: false
t.integer "user_id", null: false
t.string "user_type", null: false
t.string "search"
t.datetime "created_at"
t.datetime "updated_at"
end
create_table "structured_error_attributes", id: :serial, force: :cascade do |t|
t.integer "structured_error_id"
t.integer "error_template_attribute_id"
t.string "value"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.boolean "match"
t.index ["structured_error_id"], name: "index_structured_error_attributes_on_structured_error_id"
end
create_table "structured_errors", id: :serial, force: :cascade do |t|
t.integer "error_template_id"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.integer "submission_id"
t.index ["submission_id"], name: "index_structured_errors_on_submission_id"
end
create_table "study_group_memberships", force: :cascade do |t|
t.bigint "study_group_id"
t.string "user_type"
t.bigint "user_id"
t.integer "role", limit: 2, default: 0, null: false, comment: "Used as enum in Rails"
t.index ["study_group_id"], name: "index_study_group_memberships_on_study_group_id"
t.index ["user_type", "user_id"], name: "index_study_group_memberships_on_user"
end
create_table "study_groups", force: :cascade do |t|
t.string "name"
t.string "external_id"
t.bigint "consumer_id"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.index ["consumer_id"], name: "index_study_groups_on_consumer_id"
t.index ["external_id", "consumer_id"], name: "index_study_groups_on_external_id_and_consumer_id", unique: true
end
create_table "submissions", id: :serial, force: :cascade do |t|
t.integer "exercise_id"
t.float "score"
t.integer "contributor_id", null: false
t.datetime "created_at"
t.datetime "updated_at"
t.string "cause"
t.string "contributor_type", null: false
t.bigint "study_group_id"
t.index ["contributor_id"], name: "index_submissions_on_contributor_id"
t.index ["exercise_id"], name: "index_submissions_on_exercise_id"
t.index ["study_group_id"], name: "index_submissions_on_study_group_id"
end
create_table "subscriptions", id: :serial, force: :cascade do |t|
t.integer "user_id"
t.string "user_type"
t.integer "request_for_comment_id"
t.string "subscription_type"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.boolean "deleted"
t.bigint "study_group_id"
t.index ["study_group_id"], name: "index_subscriptions_on_study_group_id"
end
create_table "tags", id: :serial, force: :cascade do |t|
t.string "name", null: false
t.datetime "created_at"
t.datetime "updated_at"
end
create_table "testrun_execution_environments", force: :cascade do |t|
t.bigint "testrun_id", null: false
t.bigint "execution_environment_id", null: false
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.index ["execution_environment_id"], name: "index_testrun_execution_environments"
t.index ["testrun_id"], name: "index_testrun_execution_environments_on_testrun_id"
end
create_table "testrun_messages", id: :uuid, default: -> { "gen_random_uuid()" }, force: :cascade do |t|
t.bigint "testrun_id", null: false
t.interval "timestamp", default: "PT0S", null: false
t.integer "cmd", limit: 2, default: 1, null: false, comment: "Used as enum in Rails"
t.integer "stream", limit: 2, comment: "Used as enum in Rails"
t.text "log"
t.jsonb "data"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.index ["testrun_id"], name: "index_testrun_messages_on_testrun_id"
t.check_constraint "log IS NULL OR data IS NULL", name: "either_data_or_log"
end
create_table "testruns", id: :serial, force: :cascade do |t|
t.boolean "passed"
t.text "output"
t.integer "file_id"
t.integer "submission_id", null: false
t.datetime "created_at"
t.datetime "updated_at"
t.string "cause"
t.interval "container_execution_time"
t.interval "waiting_for_container_time"
t.integer "exit_code", limit: 2, comment: "No exit code is available in case of a timeout"
t.integer "status", limit: 2, default: 0, null: false, comment: "Used as enum in Rails"
t.string "user_type", null: false
t.bigint "user_id", null: false
t.index ["submission_id"], name: "index_testruns_on_submission_id"
t.index ["user_type", "user_id"], name: "index_testruns_on_user"
t.check_constraint "exit_code >= 0 AND exit_code <= 255", name: "exit_code_constraint"
end
create_table "tips", force: :cascade do |t|
t.string "title"
t.text "description"
t.text "example"
t.bigint "file_type_id"
t.string "user_type", null: false
t.bigint "user_id", null: false
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.index ["file_type_id"], name: "index_tips_on_file_type_id"
t.index ["user_type", "user_id"], name: "index_tips_on_user"
end
create_table "user_exercise_feedbacks", id: :serial, force: :cascade do |t|
t.integer "exercise_id", null: false
t.integer "user_id", null: false
t.string "user_type", null: false
t.integer "difficulty"
t.integer "working_time_seconds"
t.string "feedback_text"
t.integer "user_estimated_worktime"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.float "normalized_score"
t.bigint "submission_id"
t.index ["submission_id"], name: "index_user_exercise_feedbacks_on_submission_id"
end
create_table "user_exercise_interventions", id: :serial, force: :cascade do |t|
t.integer "user_id"
t.string "user_type"
t.integer "exercise_id"
t.integer "intervention_id"
t.integer "accumulated_worktime_s"
t.text "reason"
t.datetime "created_at"
t.datetime "updated_at"
end
create_table "user_proxy_exercise_exercises", id: :serial, force: :cascade do |t|
t.integer "user_id"
t.string "user_type"
t.integer "proxy_exercise_id"
t.integer "exercise_id"
t.datetime "created_at"
t.datetime "updated_at"
t.string "reason"
t.index ["exercise_id"], name: "index_user_proxy_exercise_exercises_on_exercise_id"
t.index ["proxy_exercise_id"], name: "index_user_proxy_exercise_exercises_on_proxy_exercise_id"
t.index ["user_type", "user_id"], name: "index_user_proxy_exercise_exercises_on_user"
end
add_foreign_key "anomaly_notifications", "exercise_collections"
add_foreign_key "anomaly_notifications", "exercises"
add_foreign_key "authentication_tokens", "study_groups"
add_foreign_key "community_solution_contributions", "community_solution_locks"
add_foreign_key "community_solution_contributions", "community_solutions"
add_foreign_key "community_solution_contributions", "study_groups"
add_foreign_key "community_solution_locks", "community_solutions"
add_foreign_key "community_solutions", "exercises"
add_foreign_key "events", "programming_groups"
add_foreign_key "events", "study_groups"
add_foreign_key "events_synchronized_editor", "files"
add_foreign_key "events_synchronized_editor", "programming_groups"
add_foreign_key "events_synchronized_editor", "study_groups"
add_foreign_key "exercise_tips", "exercise_tips", column: "parent_exercise_tip_id"
add_foreign_key "exercise_tips", "exercises"
add_foreign_key "exercise_tips", "tips"
add_foreign_key "lti_parameters", "exercises"
add_foreign_key "lti_parameters", "external_users"
add_foreign_key "lti_parameters", "study_groups"
add_foreign_key "pair_programming_exercise_feedbacks", "exercises"
add_foreign_key "pair_programming_exercise_feedbacks", "programming_groups"
add_foreign_key "pair_programming_exercise_feedbacks", "study_groups"
add_foreign_key "pair_programming_exercise_feedbacks", "submissions"
add_foreign_key "pair_programming_waiting_users", "exercises"
add_foreign_key "pair_programming_waiting_users", "programming_groups"
add_foreign_key "programming_group_memberships", "programming_groups"
add_foreign_key "programming_groups", "exercises"
add_foreign_key "remote_evaluation_mappings", "study_groups"
add_foreign_key "structured_error_attributes", "error_template_attributes"
add_foreign_key "structured_error_attributes", "structured_errors"
add_foreign_key "structured_errors", "error_templates"
add_foreign_key "structured_errors", "submissions"
add_foreign_key "submissions", "study_groups"
add_foreign_key "subscriptions", "study_groups"
add_foreign_key "testrun_execution_environments", "execution_environments"
add_foreign_key "testrun_execution_environments", "testruns"
add_foreign_key "testrun_messages", "testruns"
add_foreign_key "testruns", "submissions"
add_foreign_key "tips", "file_types"
add_foreign_key "user_exercise_feedbacks", "submissions"
end
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