otusteamedu · JastaFly · Jun 30, 2022 · Jun 30, 2022
diff --git a/README.md b/README.md
@@ -1,3 +1,4 @@
-# PHP2021
+# Домашняя работе №8 - PostgreSQL для разработчика
 
-https://otus.ru/lessons/razrabotchik-php/?utm_source=github&utm_medium=free&utm_campaign=otus
+**Схема базы данных фильмов:**
+![Схема базы данных кинотеатра](db_scheme.jpg)
diff --git a/db_scheme.jpg b/db_scheme.jpg
diff --git a/ddl_script.sql b/ddl_script.sql
@@ -0,0 +1,193 @@
+SET statement_timeout = 0;
+SET lock_timeout = 0;
+SET idle_in_transaction_session_timeout = 0;
+SET client_encoding = 'UTF8';
+SET standard_conforming_strings = on;
+SELECT pg_catalog.set_config('search_path', '', false);
+SET check_function_bodies = false;
+SET xmloption = content;
+SET client_min_messages = warning;
+SET row_security = off;
+
+CREATE SEQUENCE public.attribute_id_seq
+    START WITH 1
+    INCREMENT BY 1
+    NO MINVALUE
+    NO MAXVALUE
+    CACHE 1;
+
+
+ALTER TABLE public.attribute_id_seq OWNER TO postgres;
+
+SET default_tablespace = '';
+SET default_table_access_method = heap;
+
+CREATE TABLE public.attribute (
+    attribute_id integer DEFAULT nextval('public.attribute_id_seq'::regclass) NOT NULL,
+    name character varying(30) NOT NULL,
+    attribute_type_id integer NOT NULL
+);
+
+ALTER TABLE public.attribute OWNER TO postgres;
+
+CREATE SEQUENCE public.attribute_type_id_seq
+    START WITH 1
+    INCREMENT BY 1
+    NO MINVALUE
+    NO MAXVALUE
+    CACHE 1;
+
+
+ALTER TABLE public.attribute_type_id_seq OWNER TO postgres;
+
+CREATE TABLE public.attribute_type (
+    attribute_type_id integer DEFAULT nextval('public.attribute_type_id_seq'::regclass) NOT NULL,
+    name character varying(50) NOT NULL
+);
+
+
+ALTER TABLE public.attribute_type OWNER TO postgres;
+
+CREATE SEQUENCE public.film_id_seq
+    START WITH 1
+    INCREMENT BY 1
+    NO MINVALUE
+    NO MAXVALUE
+    CACHE 1;
+
+
+ALTER TABLE public.film_id_seq OWNER TO postgres;
+
+CREATE TABLE public.film (
+    film_id integer DEFAULT nextval('public.film_id_seq'::regclass) NOT NULL,
+    name character varying(50) NOT NULL
+);
+
+ALTER TABLE public.film OWNER TO postgres;
+
+CREATE SEQUENCE public.film_attributes_id_seq
+    START WITH 1
+    INCREMENT BY 1
+    NO MINVALUE
+    NO MAXVALUE
+    CACHE 1;
+
+
+ALTER TABLE public.film_attributes_id_seq OWNER TO postgres;
+
+CREATE TABLE public.film_attributes (
+    film_attributes_id integer DEFAULT nextval('public.film_attributes_id_seq'::regclass) NOT NULL,
+    attribute_id integer NOT NULL,
+    film_id integer NOT NULL,
+    value_text character varying,
+    value_integer integer,
+    value_float double precision,
+    value_boolean boolean,
+    value_timestamp timestamp with time zone
+);
+
+ALTER TABLE public.film_attributes OWNER TO postgres;
+
+CREATE VIEW public.film_attributes_values AS
+SELECT
+    NULL::character varying(50) AS name,
+    NULL::character varying(50) AS attribute_type,
+    NULL::character varying(30) AS attribute_name,
+    NULL::text AS attribute_value;
+
+
+ALTER TABLE public.film_attributes_values OWNER TO postgres;
+
+CREATE VIEW public.film_tasks AS
+SELECT
+    NULL::character varying(50) AS name,
+    NULL::character varying[] AS today_tasks,
+    NULL::character varying[] AS twenty_days_tasks;
+
+
+ALTER TABLE public.film_tasks OWNER TO postgres;
+
+COPY public.attribute (attribute_id, name, attribute_type_id) FROM stdin;
+1   Рецензии    3
+3   Премия Оскар    2
+4   Премия Ника 2
+5	Премия Золотой Глобус	2
+10	Описание фильма	3
+11	Длительность (мин.)	1
+12	Длительность проката (дней)	1
+2	Рейтинг	7
+6	Премьера в мире	6
+7	Премьера в России	6
+8	Старт продажи билетов	6
+9	Старт проката	6
+13	Окончание проката	6
+\.
+
+COPY public.attribute_type (attribute_type_id, name) FROM stdin;
+1	integer
+2	boolean
+3	text
+4	date
+5	numeric
+6	timestamp
+7	float
+\.
+
+COPY public.film (film_id, name) FROM stdin;
+1	Падение черного ястреба
+2	72 метра
+\.
+
+COPY public.film_attributes (film_attributes_id, attribute_id, film_id, value_text, value_integer, value_float, value_boolean, value_timestamp) FROM stdin;
+12	12	1	\N	21	\N	\N	\N
+13	12	2	\N	14	\N	\N	\N
+18	3	2	t	\N	\N	\N	\N
+6	6	1	\N	\N	\N	\N	2022-06-30 00:00:00+03
+7	6	2	\N	\N	\N	\N	2022-06-30 00:00:00+03
+8	7	1	\N	\N	\N	\N	2022-06-30 00:00:00+03
+9	7	2	\N	\N	\N	\N	2022-06-30 00:00:00+03
+10	8	1	\N	\N	\N	\N	2022-06-30 00:00:00+03
+11	8	2	\N	\N	\N	\N	2022-06-30 00:00:00+03
+14	9	1	\N	\N	\N	\N	2022-06-30 00:00:00+03
+15	9	2	\N	\N	\N	\N	2022-06-30 00:00:00+03
+16	13	1	\N	\N	\N	\N	2022-07-21 00:00:00+03
+17	13	2	\N	\N	\N	\N	2022-07-21 00:00:00+03
+1	1	1	Крутые американцы убиваю милион озверевших негров	\N	\N	\N	\N
+2	1	2	Русская военная драма с элементами межнациональной розни	\N	\N	\N	\N
+5	3	1	f	\N	\N	\N	\N
+\.
+
+SELECT pg_catalog.setval('public.attribute_id_seq', 13, true);
+SELECT pg_catalog.setval('public.attribute_type_id_seq', 6, true);
+SELECT pg_catalog.setval('public.film_attributes_id_seq', 18, true);
+SELECT pg_catalog.setval('public.film_id_seq', 2, true);
+
+ALTER TABLE ONLY public.attribute
+    ADD CONSTRAINT attribute_pkey PRIMARY KEY (attribute_id);
+
+ALTER TABLE ONLY public.attribute_type
+    ADD CONSTRAINT attribute_type_name_key UNIQUE (name);
+
+ALTER TABLE ONLY public.attribute_type
+    ADD CONSTRAINT attribute_type_pkey PRIMARY KEY (attribute_type_id);
+
+ALTER TABLE ONLY public.attribute
+    ADD CONSTRAINT attribute_unq UNIQUE (name);
+
+ALTER TABLE ONLY public.film_attributes
+    ADD CONSTRAINT film_attributes_pkey PRIMARY KEY (film_attributes_id);
+
+ALTER TABLE ONLY public.film
+    ADD CONSTRAINT film_pkey PRIMARY KEY (film_id);
+
+ALTER TABLE ONLY public.film
+    ADD CONSTRAINT film_unq UNIQUE (name);
+
+ALTER TABLE ONLY public.attribute
+    ADD CONSTRAINT attribute_type_fkey FOREIGN KEY (attribute_type_id) REFERENCES public.attribute_type(attribute_type_id) NOT VALID;
+
+ALTER TABLE ONLY public.film_attributes
+    ADD CONSTRAINT film_attribute_attribute_fkey FOREIGN KEY (attribute_id) REFERENCES public.attribute(attribute_id);
+
+ALTER TABLE ONLY public.film_attributes
+    ADD CONSTRAINT film_attribute_film_fkey FOREIGN KEY (film_id) REFERENCES public.film(film_id);
diff --git a/film_tasks_view.sql b/film_tasks_view.sql
@@ -0,0 +1,10 @@
+CREATE OR REPLACE VIEW public.film_tasks AS
+ SELECT f.name,
+    array_agg(attr.name) FILTER (WHERE (((CURRENT_TIMESTAMP - f_attr.value_timestamp) < '24:00:00'::interval) AND ((CURRENT_TIMESTAMP - f_attr.value_timestamp) > '00:00:00'::interval))) AS today_tasks,
+    array_agg(attr.name) FILTER (WHERE (((f_attr.value_timestamp - CURRENT_TIMESTAMP) > '19 days 23:59:59'::interval) AND ((f_attr.value_timestamp - CURRENT_TIMESTAMP) < '21 days'::interval))) AS twenty_days_tasks
+   FROM (((public.attribute_type attr_t
+     JOIN public.attribute attr ON ((attr_t.attribute_type_id = attr.attribute_type_id)))
+     JOIN public.film_attributes f_attr ON ((attr.attribute_id = f_attr.attribute_id)))
+     JOIN public.film f ON ((f_attr.film_id = f.film_id)))
+  WHERE ((attr_t.attribute_type_id = 6) AND ((((CURRENT_TIMESTAMP - f_attr.value_timestamp) < '24:00:00'::interval) AND ((CURRENT_TIMESTAMP - f_attr.value_timestamp) > '00:00:00'::interval)) OR (((f_attr.value_timestamp - CURRENT_TIMESTAMP) > '19 days 23:59:59'::interval) AND ((f_attr.value_timestamp - CURRENT_TIMESTAMP) < '21 days'::interval))))
+  GROUP BY f.film_id;
diff --git a/films_attributes_view.sql b/films_attributes_view.sql
@@ -0,0 +1,21 @@
+CREATE OR REPLACE VIEW public.film_attributes AS
+ SELECT f.name,
+    attr_t.name AS attribute_type,
+    attr.name AS attribute_name,
+        CASE
+            WHEN ((attr_t.name)::text = 'integer'::text) THEN (f_attr.value_integer)::text
+            WHEN ((attr_t.name)::text = 'double precision'::text) THEN (f_attr.value_float)::text
+            WHEN ((attr_t.name)::text = 'boolean'::text) THEN
+            CASE
+                WHEN (f_attr.value_boolean = true) THEN 'Y'::text
+                ELSE 'N'::text
+            END
+            WHEN ((attr_t.name)::text = 'timestamp'::text) THEN (f_attr.value_timestamp)::text
+            WHEN ((attr_t.name)::text = 'text'::text) THEN (f_attr.value_text)::text
+            ELSE NULL::text
+        END AS attribute_value
+   FROM (((public.attribute_type attr_t
+     JOIN public.attribute attr ON ((attr_t.attribute_type_id = attr.attribute_type_id)))
+     JOIN public.film_attributes f_attr ON ((attr.attribute_id = f_attr.attribute_id)))
+     JOIN public.film f ON ((f_attr.film_id = f.film_id)))
+  GROUP BY f.film_id, attr_t.attribute_type_id, attr.attribute_id, f_attr.film_attributes_id;