mirror of https://github.com/xfarrow/blink.git
42 lines
2.3 KiB
SQL
42 lines
2.3 KiB
SQL
-- Table: public.Message
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-- DROP TABLE IF EXISTS public."Message";
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CREATE TABLE IF NOT EXISTS public."Message"
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(
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id serial NOT NULL,
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person_id integer NOT NULL,
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organization_id integer NOT NULL,
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author_on_behalf_of_organization integer,
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"timestamp" timestamp without time zone NOT NULL,
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content character varying(4096) COLLATE pg_catalog."default" NOT NULL,
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sender_type character varying(12) COLLATE pg_catalog."default" NOT NULL,
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CONSTRAINT "Message_pkey" PRIMARY KEY (id),
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CONSTRAINT "Message_author_on_behalf_of_company_fkey" FOREIGN KEY (author_on_behalf_of_organization)
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REFERENCES public."Person" (id) MATCH SIMPLE
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ON UPDATE NO ACTION
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ON DELETE CASCADE,
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CONSTRAINT "Message_organization_id_fkey" FOREIGN KEY (organization_id)
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REFERENCES public."Organization" (id) MATCH SIMPLE
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ON UPDATE NO ACTION
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ON DELETE CASCADE,
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CONSTRAINT "Message_person_id_fkey" FOREIGN KEY (person_id)
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REFERENCES public."Person" (id) MATCH SIMPLE
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ON UPDATE NO ACTION
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ON DELETE CASCADE,
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CONSTRAINT "Message_sender_type_check" CHECK (sender_type::text = 'ORGANIZATION'::text OR sender_type::text = 'PERSON'::text),
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CONSTRAINT "Message_sender_constraint" CHECK (author_on_behalf_of_organization IS NULL AND sender_type::text = 'PERSON'::text OR author_on_behalf_of_organization IS NOT NULL AND sender_type::text = 'ORGANIZATION'::text)
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)
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TABLESPACE pg_default;
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ALTER TABLE IF EXISTS public."Message"
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OWNER to postgres;
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COMMENT ON COLUMN public."Message".sender_type
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IS 'sender_type can be either be PERSON or ORGANIZATION, depending who''s sending the message. It is PERSON if and only if author_on_behalf_of_organization is NULL. It is ORGANIZATION if and only if author_on_behalf_of_organization is NOT NULL. This column may seem redundant if we already know how to identify a sender, but it does give more clarity to the API implementers';
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COMMENT ON CONSTRAINT "Message_sender_type_check" ON public."Message"
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IS 'We want the sender to be either PERSON or ORGANIZATION';
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COMMENT ON CONSTRAINT "Message_sender_constraint" ON public."Message"
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IS 'If ''author_on_behalf_of_organization'' is NULL, then the sender is a person, instead, if ''author_on_behalf_of_organization'' is not NULL, the sender is a organization'; |