61 lines
2.9 KiB
Markdown
61 lines
2.9 KiB
Markdown
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# Collections
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Before developing a system, we usually have to abstract the business and build a data model. It's called collections in NocoBase. Collections in NocoBase consists of fields (columns) and records (rows). The concept of a collection is similar to the concept of a data table in a relational database, but the concept of fields is slightly different.
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For example, in a collection describing an order, each column contains information about a specific attribute of the order, such as the delivery address, while each row contains all the information about a specific order, such as order number, customer name, phone number, delivery address, etc.
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## Separate "data structure" and "user interface"
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NocoBase's `Data` and `View` are separated, managed and presented by `Collections` and `Blocks` respectively.
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This means that,
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- you can create **one collection** and design **one set of interfaces** for it, to enable the presentation and manipulation of data.
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- You can also create **one collection** and design **many sets of interfaces** for it, for the presentation and manipulation of data in different scenarios or roles.
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- You can also create **multiple collections** and then design **one set of interfaces** for them to display and manipulate multiple data tables at the same time.
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- You can even create **multiple collections** and then design **multiple sets of interfaces** for them, each of which can operate on multiple data tables and perform unique functions.
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Simply put, the separation of data and interfaces makes **the organization and management of data more flexible**, and how you present the data depends on how you configure the interfaces.
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## Field Types
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NocoBase currently supports the following dozens of fields, and more can be supported in the future by way of plug-ins.
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| Name | Type |
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| --- | --- |
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| single-line text | basic type |
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| Icon | Basic Type |
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| Multi-line text | Basic type |
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| Password | Basic type |
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| Mobile Number | Basic Type |
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| Number | Basic Type |
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| Integer | Basic Type |
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| Email | Basic Type |
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| Percent | Basic Type |
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| Drop-down menu (single selection) | Select type |
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| Drop-down menu (multiple choice) | Select type |
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| China Administrative Region | Select Type |
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| Check | Select Type |
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| Radio | Select Type |
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| Checkbox | Select Type |
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| Link to | Relationship Type |
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| One-to-One (has one) | Relationship Type |
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| One-to-One (belongs to) | Relationship Type |
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| One-to-many | Relationship Type |
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| Many-to-one | relationship type |
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| Many-to-many | relationship type |
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| Formula | advanced type |
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| AutoCoding | Advanced Types |
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| JSON | Advanced Types |
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| Markdown | Multimedia |
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| Rich Text | Multimedia |
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| Attachments | Multimedia |
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| Date | Date & Time |
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| Time | Date & Time |
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| ID | System Information |
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| Created by | System Information |
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| Date Created | System Information |
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| Last Modified By | System Information |
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| Last Modified Date | System Information |
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| Formula | Advanced Type |
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