Yared Yemane
9631711090
Insert ids 1-3 catalog rows and sync sequence on up; delete seed ids on down before dropping lms_personas. Co-authored-by: Cursor <cursoragent@cursor.com>
65 lines
2.0 KiB
SQL
65 lines
2.0 KiB
SQL
-- Catalog of LMS personas (coach/avatar profiles) referenced by Learn English + exam-prep practices.
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CREATE TABLE lms_personas (
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id BIGSERIAL PRIMARY KEY,
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name VARCHAR(255) NOT NULL,
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description TEXT,
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avatar_url TEXT,
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is_active BOOLEAN NOT NULL DEFAULT TRUE,
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created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMPTZ
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);
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CREATE INDEX idx_lms_personas_is_active ON lms_personas (is_active)
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WHERE is_active;
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CREATE INDEX idx_lms_personas_created_at ON lms_personas (created_at DESC);
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-- Default catalog personas (stable ids for envs and Postman); add more via API.
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INSERT INTO lms_personas (id, name, description, avatar_url, is_active)
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VALUES
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(
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1,
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'Friendly Coach',
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'Warm, encouraging tutor for everyday conversational practice.',
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NULL,
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TRUE
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),
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(
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2,
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'Exam Coach',
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'Structured, exam-style guidance and clear checkpoints.',
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NULL,
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TRUE
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),
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(
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3,
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'Story Narrator',
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'Story-led scenarios with character-driven prompts.',
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NULL,
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TRUE
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);
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SELECT setval(
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pg_get_serial_sequence('lms_personas', 'id'),
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(SELECT COALESCE(MAX(id), 1) FROM lms_personas)
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);
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-- persona_id historically referenced users.id; personas are now catalog rows on lms_personas.
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ALTER TABLE lms_practices DROP CONSTRAINT IF EXISTS lms_practices_persona_id_fkey;
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UPDATE lms_practices
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SET persona_id = NULL
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WHERE persona_id IS NOT NULL;
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ALTER TABLE lms_practices
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ADD CONSTRAINT lms_practices_persona_id_fkey FOREIGN KEY (persona_id) REFERENCES lms_personas (id) ON DELETE SET NULL;
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ALTER TABLE exam_prep.lesson_practices DROP CONSTRAINT IF EXISTS lesson_practices_persona_id_fkey;
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UPDATE exam_prep.lesson_practices
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SET persona_id = NULL
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WHERE persona_id IS NOT NULL;
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ALTER TABLE exam_prep.lesson_practices
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ADD CONSTRAINT lesson_practices_persona_id_fkey FOREIGN KEY (persona_id) REFERENCES lms_personas (id) ON DELETE SET NULL;
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