50 lines
878 B
SQL
50 lines
878 B
SQL
/*
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Tags on a post
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A post's tags are deleted if the post is deleted.
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*/
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/* dot -Tsvg
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@name db/schema/tags
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digraph tags {
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tags [
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shape="plaintext"
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label=<<table>
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<tr><td colspan="3"><b>tags</b></td></tr>
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<tr>
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<td port="id">PK</td>
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<td>id</td>
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<td>INT, AUTOINCREMENT, NOT NULL</td>
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</tr>
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<tr>
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<td>FK</td>
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<td>postid</td>
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<td port="postid">ON DELETE CASCADE</td>
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</tr>
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<tr>
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<td></td>
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<td>tag</td>
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<td>TEXT</td>
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</tr>
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</table>>
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];
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posts [
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shape="plaintext"
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label=<<table>
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<tr><td colspan="3"><b>posts</b></td></tr>
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<tr>
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<td port="id">PK</td>
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<td>id</td>
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<td>INT, AUTOINCREMENT, NOT NULL</td>
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</tr>
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<tr><td colspan="3">...</td></tr>
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</table>>
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];
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tags:postid -> posts:id
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}
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*/
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CREATE TABLE IF NOT EXISTS tags (
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id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
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postid REFERENCES posts(id) ON DELETE CASCADE,
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tag TEXT
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);
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