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[ci skip] Add feature section and normalize prologue with other guides.

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Also change Json => JSON.

Fill Ruby's Range & IPAddr link.
This commit is contained in:
Juanito Fatas 2014-05-07 13:47:39 +08:00
parent af864447f1
commit 278872abfb
1 changed files with 12 additions and 3 deletions
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15
guides/source/active_record_postgresql.md
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@ -10,6 +10,15 @@ To get started with PostgreSQL have a look at the
[configuring Rails guide](configuring.html#configuring-a-postgresql-database). [configuring Rails guide](configuring.html#configuring-a-postgresql-database).
It describes how to properly setup Active Record for PostgreSQL. It describes how to properly setup Active Record for PostgreSQL.
After reading this guide, you will know:
* How to use PostgreSQL's datatypes.
* How to use UUID Primary keys.
* How to implement Full text search with PostgreSQL.
--------------------------------------------------------------------------------
Datatypes Datatypes
--------- ---------
@ -99,7 +108,7 @@ profile.settings_will_change!
profile.save! profile.save!
``` ```
### Json ### JSON
* [type definition](http://www.postgresql.org/docs/9.3/static/datatype-json.html) * [type definition](http://www.postgresql.org/docs/9.3/static/datatype-json.html)
* [functions and operators](http://www.postgresql.org/docs/9.3/static/functions-json.html) * [functions and operators](http://www.postgresql.org/docs/9.3/static/functions-json.html)
@ -129,7 +138,7 @@ Event.where("payload->'kind' = ?", "user_renamed")
* [type definition](http://www.postgresql.org/docs/9.3/static/rangetypes.html) * [type definition](http://www.postgresql.org/docs/9.3/static/rangetypes.html)
* [functions and operators](http://www.postgresql.org/docs/9.3/static/functions-range.html) * [functions and operators](http://www.postgresql.org/docs/9.3/static/functions-range.html)
This type is mapped to Ruby [`Range`]() objects. This type is mapped to Ruby [`Range`](http://www.ruby-doc.org/core-2.1.1/Range.html) objects.
```ruby ```ruby
# db/migrate/20130923065404_create_events.rb # db/migrate/20130923065404_create_events.rb
@ -279,7 +288,7 @@ user.save!
* [type definition](http://www.postgresql.org/docs/9.3/static/datatype-net-types.html) * [type definition](http://www.postgresql.org/docs/9.3/static/datatype-net-types.html)
The types `inet` and `cidr` are mapped to Ruby [`IPAddr`]() objects. The The types `inet` and `cidr` are mapped to Ruby [`IPAddr`](http://www.ruby-doc.org/stdlib-2.1.1/libdoc/ipaddr/rdoc/IPAddr.html) objects. The
`macaddr` type is mapped to normal text. `macaddr` type is mapped to normal text.
### Geometric Types ### Geometric Types