37 lines
712 B
Markdown
37 lines
712 B
Markdown
# Entity-Relationship Diagrams - Domain Specific Language
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## Goals
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* Describe all possible cases according to MERISE
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* Be simple to read and write by a human user
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* Be simple to parse by a machine
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## Example
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```
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entities:
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user:
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id: UUID
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password_hash: VARCHAR(250)
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role: VARCHAR(10)
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created_at: DATETIME
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updated_at: DATETIME
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url:
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id: VARCHAR(250)
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custom_id: VARCHAR(250)
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source_url: TEXT
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short_url: VARCHAR(250)
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created_at: DATETIME
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updated_at: DATETIME
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expires_at: DATETIME
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relationships:
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manages_urls:
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links:
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- user:
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eq: 1
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- url:
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gte: 0
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lte: n
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properties: {}
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```
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