67 lines
1.3 KiB
Markdown
67 lines
1.3 KiB
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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```yaml
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entities:
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user:
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name: "Utilisateur"
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properties:
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- name: id
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type: integer
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key: true
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options: ['autoincrement']
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- name: password_hash
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type: varchar
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limit: 250
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- name: role
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type: varchar
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limit: 10
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- name: created_at
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type: datetime
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- name: updated_at
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type: datetime
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url:
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name: "Adresses"
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properties:
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- name: id
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type: varchar
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limit: 250
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key: true
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- name: custom_id
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type: varchar
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limit: 250
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- name: source_url
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type: text
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- name: short_url
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type: varchar
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limit: 250
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- name: created_at
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type: datetime
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- name: updated_at
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type: datetime
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- name: expires_at
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type: datetime
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relationships:
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manages_urls:
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name: "GereAdresse"
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links:
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- name: user:
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equals: 1
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- name: url:
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min: 0
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max: n
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properties: []
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```
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## References
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* [Petit cours de Modélisation, Christophe DARMANGEAT](http://pise.info/modelisation/)
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