README.md
# Purée
Metadata extraction from the Pure Research Information System.
## Status
[![Gem Version](https://badge.fury.io/rb/puree.svg)](https://badge.fury.io/rb/puree)
[![Maintainability](https://api.codeclimate.com/v1/badges/0a0a8249dcadb444eb9e/maintainability)](https://codeclimate.com/github/lulibrary/puree/maintainability)
## Installation
Add this line to your application's Gemfile:
gem 'puree'
And then execute:
$ bundle
Or install it yourself as:
$ gem install puree
## Configuration
```ruby
# For Extractor and REST modules.
config = {
url: 'https://YOUR_HOST/ws/api/YOUR_API_VERSION',
username: 'YOUR_USERNAME',
password: 'YOUR_PASSWORD',
api_key: 'YOUR_API_KEY'
}
```
Purée is tested using known data within a Pure installation.
Purée version | Pure API version
:---: | :---:
< 2.0 | < 59
>= 2.0, < 2.5 | 59, 510
>= 2.5, < 2.7 | 511, 512
2.7 | 513
2.8 | 514
2.9 | 515, 516, 517, 518, 519, 520, 521, 522, 523, 524
## Extractor module
```ruby
# Configure an extractor for a resource
extractor = Puree::Extractor::Dataset.new config
```
```ruby
# Find out how many records are available
extractor.count
#=> 1000
```
```ruby
# Fetch a random record
extractor.random
#=> #<Puree::Model::Dataset:0x00c0ffee>
```
```ruby
# Fetch the metadata for a record with a particular identifier
dataset = extractor.find 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'
#=> #<Puree::Model::Dataset:0x00c0ffee>
```
```ruby
# Access specific metadata e.g. an internal person's name
dataset.persons_internal[0].name
#=> #<Puree::Model::PersonName:0x00c0ffee @first="Foo", @last="Bar">
```
```ruby
# Select a formatting style for a person's name
dataset.persons_internal[0].name.last_initial
#=> "Bar, F."
```
## XMLExtractor module
Get Ruby objects from Pure XML.
### Single record
```ruby
xml = '<project> ... </project>'
```
```ruby
# Configure an XML extractor
xml_extractor = Puree::XMLExtractor::Project.new xml
```
```ruby
# Get a single piece of metadata
xml_extractor.title
#=> "An interesting project title"
```
```ruby
# Get all the metadata together
xml_extractor.model
#=> #<Puree::Model::Project:0x00c0ffee>
```
### Homogeneous record collection
```ruby
xml = '<result>
<dataSet> ... </dataSet>
<dataSet> ... </dataSet>
...
</result>'
```
```ruby
# Get an array of datasets
Puree::XMLExtractor::Collection.datasets xml
#=> [#<Puree::Model::Dataset:0x00c0ffee>, ...]
```
### Heterogeneous record collection
```ruby
xml = '<result>
<contributionToJournal> ... </contributionToJournal>
<contributionToConference> ... </contributionToConference>
...
</result>'
```
```ruby
# Get a hash of research outputs
Puree::XMLExtractor::Collection.research_outputs xml
#=> {
# journal_articles: [#<Puree::Model::JournalArticle:0x00c0ffee>, ...],
# conference_papers: [#<Puree::Model::ConferencePaper:0x00c0ffee>, ...],
# theses: [#<Puree::Model::Thesis:0x00c0ffee>, ...],
# other: [#<Puree::Model::ResearchOutput:0x00c0ffee>, ...]
# }
```
## REST module
Query the Pure REST API.
### Client
```ruby
# Configure a client
client = Puree::REST::Client.new config
```
```ruby
# Find a person
client.persons.find id: 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'
#=> #<HTTP::Response:0x00c0ffee>
```
```ruby
# Find a person, limit the metadata to ORCID and employee start date
client.persons.find id: 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx',
params: {fields: ['orcid', 'employeeStartDate']}
#=> #<HTTP::Response:0x00c0ffee>
```
```ruby
# Find five people, response body as JSON
client.persons.all params: {size: 5}, accept: :json
#=> #<HTTP::Response:0x00c0ffee>
```
```ruby
# Find three active academics
params = {
size: 3,
employmentTypeUri: ['/dk/atira/pure/person/employmenttypes/academic'],
employmentStatus: 'ACTIVE'
}
client.persons.all_complex params: params
#=> #<HTTP::Response:0x00c0ffee>
```
```ruby
# Find research outputs for a person
client.persons.research_outputs id: 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'
#=> #<HTTP::Response:0x00c0ffee>
```
### Resource
```ruby
# Configure a resource
persons = Puree::REST::Person.new config
```
```ruby
# Find a person
persons.find id: 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'
#=> #<HTTP::Response:0x00c0ffee>
```
## REST module with XMLExtractor module
Query the Pure REST API and get Ruby objects from Pure XML.
```ruby
# Configure a client
client = Puree::REST::Client.new config
```
```ruby
# Find projects for a person
response = client.persons.projects id: 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'
```
```ruby
# Extract metadata from XML
Puree::XMLExtractor::Collection.projects response.to_s
#=> [#<Puree::Model::Project:0x00c0ffee>, ...]
```