Add support for Active Storage attachments

.gitignore

@@ -16,4 +16,5 @@ node_modules
 public/assets
 public/attachments
 public/export
+storage
 tmp

.travis.yml

@@ -25,6 +25,7 @@ before_script:
   - psql -U postgres -c "CREATE FUNCTION tile_for_point(int4, int4) RETURNS int8 AS '/tmp/libpgosm', 'tile_for_point' LANGUAGE C STRICT" openstreetmap
   - psql -U postgres -c "CREATE FUNCTION xid_to_int4(xid) RETURNS int4 AS '/tmp/libpgosm', 'xid_to_int4' LANGUAGE C STRICT" openstreetmap
   - cp config/travis.database.yml config/database.yml
+  - cp config/example.storage.yml config/storage.yml
   - touch config/settings.local.yml
   - bundle exec rake db:migrate
   - bundle exec rake i18n:js:export

INSTALL.md

@@ -124,6 +124,15 @@ We use [Yarn](https://yarnpkg.com/) to manage the Node.js modules required for t
 bundle exec rake yarn:install
 ```
 
+## Storage setup
+
+The Rails port needs to be configured with an object storage facility - for
+development and testing purposes you can use the example configuration:
+
+```
+cp config/example.storage.yml config/storage.yml
+```
+
 ## Database setup
 
 The Rails Port uses three databases -  one for development, one for testing, and one for production. The database-specific configuration

config/.gitignore

@@ -1 +1,2 @@
 database.yml
+storage.yml

config/environments/production.rb

@@ -39,7 +39,7 @@ Rails.application.configure do
   # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for NGINX
 
   # Store uploaded files on the local file system (see config/storage.yml for options)
-  config.active_storage.service = :local
+  config.active_storage.service = Settings.storage_service.to_symbol
 
   # Mount Action Cable outside main process or domain
   # config.action_cable.mount_path = nil

config/example.storage.yml

@@ -0,0 +1,7 @@
+test:
+  service: Disk
+  root: <%= Rails.root.join("tmp/storage") %>
+
+local:
+  service: Disk
+  root: <%= Rails.root.join("storage") %>

config/initializers/config.rb

@@ -77,5 +77,6 @@ Config.setup do |config|
     required(:api_timeout).filled(:int?)
     required(:imagery_blacklist).maybe(:array?)
     required(:status).filled(:str?, :included_in? => ALLOWED_STATUS)
+    required(:storage_service).filled(:str?)
   end
 end

config/settings.yml

@@ -122,3 +122,5 @@ fossgis_osrm_url: "https://routing.openstreetmap.de/"
 csp_enforce: false
 # URL for reporting Content-Security-Policy violations
 #csp_report_url: ""
+# Storage service to use in production mode
+storage_service: "local"

config/storage.yml

@@ -1,34 +0,0 @@
-test:
-  service: Disk
-  root: <%= Rails.root.join("tmp/storage") %>
-
-local:
-  service: Disk
-  root: <%= Rails.root.join("storage") %>
-
-# Use rails credentials:edit to set the AWS secrets (as aws:access_key_id|secret_access_key)
-# amazon:
-#   service: S3
-#   access_key_id: <%= Rails.application.credentials.dig(:aws, :access_key_id) %>
-#   secret_access_key: <%= Rails.application.credentials.dig(:aws, :secret_access_key) %>
-#   region: us-east-1
-#   bucket: your_own_bucket
-
-# Remember not to checkin your GCS keyfile to a repository
-# google:
-#   service: GCS
-#   project: your_project
-#   credentials: <%= Rails.root.join("path/to/gcs.keyfile") %>
-#   bucket: your_own_bucket
-
-# Use rails credentials:edit to set the Azure Storage secret (as azure_storage:storage_access_key)
-# microsoft:
-#   service: AzureStorage
-#   storage_account_name: your_account_name
-#   storage_access_key: <%= Rails.application.credentials.dig(:azure_storage, :storage_access_key) %>
-#   container: your_container_name
-
-# mirror:
-#   service: Mirror
-#   primary: local
-#   mirrors: [ amazon, google, microsoft ]

db/migrate/20190702193519_create_active_storage_tables.rb

@@ -0,0 +1,27 @@
+# This migration comes from active_storage (originally 20170806125915)
+class CreateActiveStorageTables < ActiveRecord::Migration[5.2]
+  def change
+    create_table :active_storage_blobs do |t|
+      t.string   :key,        :null => false
+      t.string   :filename,   :null => false
+      t.string   :content_type
+      t.text     :metadata
+      t.bigint   :byte_size,  :null => false
+      t.string   :checksum,   :null => false
+      t.datetime :created_at, :null => false
+
+      t.index [:key], :unique => true
+    end
+
+    create_table :active_storage_attachments do |t|
+      t.string     :name,     :null => false
+      t.references :record,   :null => false, :polymorphic => true, :index => false
+      t.references :blob,     :null => false
+
+      t.datetime :created_at, :null => false
+
+      t.index [:record_type, :record_id, :name, :blob_id], :name => "index_active_storage_attachments_uniqueness", :unique => true
+      t.foreign_key :active_storage_blobs, :column => :blob_id
+    end
+  end
+end

db/structure.sql

@@ -192,6 +192,74 @@ CREATE SEQUENCE public.acls_id_seq
 ALTER SEQUENCE public.acls_id_seq OWNED BY public.acls.id;
 
 
+--
+-- Name: active_storage_attachments; Type: TABLE; Schema: public; Owner: -
+--
+
+CREATE TABLE public.active_storage_attachments (
+    id bigint NOT NULL,
+    name character varying NOT NULL,
+    record_type character varying NOT NULL,
+    record_id bigint NOT NULL,
+    blob_id bigint NOT NULL,
+    created_at timestamp without time zone NOT NULL
+);
+
+
+--
+-- Name: active_storage_attachments_id_seq; Type: SEQUENCE; Schema: public; Owner: -
+--
+
+CREATE SEQUENCE public.active_storage_attachments_id_seq
+    START WITH 1
+    INCREMENT BY 1
+    NO MINVALUE
+    NO MAXVALUE
+    CACHE 1;
+
+
+--
+-- Name: active_storage_attachments_id_seq; Type: SEQUENCE OWNED BY; Schema: public; Owner: -
+--
+
+ALTER SEQUENCE public.active_storage_attachments_id_seq OWNED BY public.active_storage_attachments.id;
+
+
+--
+-- Name: active_storage_blobs; Type: TABLE; Schema: public; Owner: -
+--
+
+CREATE TABLE public.active_storage_blobs (
+    id bigint NOT NULL,
+    key character varying NOT NULL,
+    filename character varying NOT NULL,
+    content_type character varying,
+    metadata text,
+    byte_size bigint NOT NULL,
+    checksum character varying NOT NULL,
+    created_at timestamp without time zone NOT NULL
+);
+
+
+--
+-- Name: active_storage_blobs_id_seq; Type: SEQUENCE; Schema: public; Owner: -
+--
+
+CREATE SEQUENCE public.active_storage_blobs_id_seq
+    START WITH 1
+    INCREMENT BY 1
+    NO MINVALUE
+    NO MAXVALUE
+    CACHE 1;
+
+
+--
+-- Name: active_storage_blobs_id_seq; Type: SEQUENCE OWNED BY; Schema: public; Owner: -
+--
+
+ALTER SEQUENCE public.active_storage_blobs_id_seq OWNED BY public.active_storage_blobs.id;
+
+
 --
 -- Name: ar_internal_metadata; Type: TABLE; Schema: public; Owner: -
 --
@@ -1363,6 +1431,20 @@ CREATE TABLE public.ways (
 ALTER TABLE ONLY public.acls ALTER COLUMN id SET DEFAULT nextval('public.acls_id_seq'::regclass);
 
 
+--
+-- Name: active_storage_attachments id; Type: DEFAULT; Schema: public; Owner: -
+--
+
+ALTER TABLE ONLY public.active_storage_attachments ALTER COLUMN id SET DEFAULT nextval('public.active_storage_attachments_id_seq'::regclass);
+
+
+--
+-- Name: active_storage_blobs id; Type: DEFAULT; Schema: public; Owner: -
+--
+
+ALTER TABLE ONLY public.active_storage_blobs ALTER COLUMN id SET DEFAULT nextval('public.active_storage_blobs_id_seq'::regclass);
+
+
 --
 -- Name: changeset_comments id; Type: DEFAULT; Schema: public; Owner: -
 --
@@ -1546,6 +1628,22 @@ ALTER TABLE ONLY public.acls
     ADD CONSTRAINT acls_pkey PRIMARY KEY (id);
 
 
+--
+-- Name: active_storage_attachments active_storage_attachments_pkey; Type: CONSTRAINT; Schema: public; Owner: -
+--
+
+ALTER TABLE ONLY public.active_storage_attachments
+    ADD CONSTRAINT active_storage_attachments_pkey PRIMARY KEY (id);
+
+
+--
+-- Name: active_storage_blobs active_storage_blobs_pkey; Type: CONSTRAINT; Schema: public; Owner: -
+--
+
+ALTER TABLE ONLY public.active_storage_blobs
+    ADD CONSTRAINT active_storage_blobs_pkey PRIMARY KEY (id);
+
+
 --
 -- Name: ar_internal_metadata ar_internal_metadata_pkey; Type: CONSTRAINT; Schema: public; Owner: -
 --
@@ -2086,6 +2184,27 @@ CREATE INDEX index_acls_on_domain ON public.acls USING btree (domain);
 CREATE INDEX index_acls_on_mx ON public.acls USING btree (mx);
 
 
+--
+-- Name: index_active_storage_attachments_on_blob_id; Type: INDEX; Schema: public; Owner: -
+--
+
+CREATE INDEX index_active_storage_attachments_on_blob_id ON public.active_storage_attachments USING btree (blob_id);
+
+
+--
+-- Name: index_active_storage_attachments_uniqueness; Type: INDEX; Schema: public; Owner: -
+--
+
+CREATE UNIQUE INDEX index_active_storage_attachments_uniqueness ON public.active_storage_attachments USING btree (record_type, record_id, name, blob_id);
+
+
+--
+-- Name: index_active_storage_blobs_on_key; Type: INDEX; Schema: public; Owner: -
+--
+
+CREATE UNIQUE INDEX index_active_storage_blobs_on_key ON public.active_storage_blobs USING btree (key);
+
+
 --
 -- Name: index_changeset_comments_on_created_at; Type: INDEX; Schema: public; Owner: -
 --
@@ -2598,6 +2717,14 @@ ALTER TABLE ONLY public.diary_entry_subscriptions
     ADD CONSTRAINT diary_entry_subscriptions_user_id_fkey FOREIGN KEY (user_id) REFERENCES public.users(id);
 
 
+--
+-- Name: active_storage_attachments fk_rails_c3b3935057; Type: FK CONSTRAINT; Schema: public; Owner: -
+--
+
+ALTER TABLE ONLY public.active_storage_attachments
+    ADD CONSTRAINT fk_rails_c3b3935057 FOREIGN KEY (blob_id) REFERENCES public.active_storage_blobs(id);
+
+
 --
 -- Name: friends friends_friend_user_id_fkey; Type: FK CONSTRAINT; Schema: public; Owner: -
 --
@@ -2958,6 +3085,7 @@ INSERT INTO "schema_migrations" (version) VALUES
 ('20181031113522'),
 ('20190518115041'),
 ('20190623093642'),
+('20190702193519'),
 ('21'),
 ('22'),
 ('23'),