/
entities.clj
199 lines (170 loc) · 6.66 KB
/
entities.clj
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(ns ruuvi-server.database.entities
(:use korma.db)
(:use korma.core)
(:use [clojure.tools.logging :only (debug info warn error)])
(:import org.joda.time.DateTime)
(:require [clojure.java.jdbc :as jdbc])
)
(defn init-entities
"Map entities and add them to ruuvi-server.models.entities namespace"
[]
(in-ns 'ruuvi-server.database.entities)
(info "Mapping entities")
(defentity tracker
(table :trackers)
(pk :id)
(entity-fields :id :tracker_code :name :latest_activity :shared_secret)
)
(defentity event-extension-type
(table :event_extension_types)
(pk :id)
(entity-fields :name :description)
)
(defentity event-extension-value
(table :event_extension_values)
(pk :id)
(entity-fields :value)
(belongs-to event-extension-type {:fk :event_extension_type_id})
)
(defentity event-location
(table :event_locations)
(pk :id)
(entity-fields :latitude :longitude)
)
(defentity event
(table :events)
(pk :id)
(entity-fields :event_time :created_on)
(belongs-to tracker {:fk :tracker_id})
(has-many event-location {:fk :event_id})
(has-many event-extension-value {:fk :event_id})
)
;; private functions
(defn- to-sql-timestamp [date]
(if date
(java.sql.Timestamp. (.getMillis date))
nil))
(defn- current-sql-timestamp []
(to-sql-timestamp (org.joda.time.DateTime)))
(defn- remove-nil-values [map-data]
(flatten (filter (fn [x] (nth x 1) ) map-data) ))
;; public functions
(defn get-trackers [ids]
(select tracker
(where (in :id ids))))
(defn get-tracker-by-code [tracker-code]
(first (select tracker
(where {:tracker_code tracker-code}))))
(defn get-tracker-by-code! [tracker-code & tracker-name]
(let [existing-tracker (get-tracker-by-code tracker-code)]
(if existing-tracker
existing-tracker
(insert tracker (values {:tracker_code tracker-code
:name (or tracker-name tracker-code)}))
)))
(defn get-extension-type-by-id [id]
(first (select event-extension-type
(where {:name id}))))
(defn get-extension-type-by-name [type-name]
(first (select event-extension-type
(where {:name (str (name type-name))}))))
(defn get-extension-type-by-name! [type-name]
(let [existing-extension-type (get-extension-type-by-name type-name)]
(if existing-extension-type
existing-extension-type
(insert event-extension-type (values {:name (str (name type-name))
:description "Autogenerated"}))
)))
(defn get-event [event_id]
(first (select event
(with tracker)
(with event-location)
(with event-extension-value)
(where {:id event_id})))
)
(defn search-events
"Search events: criteria is a map that can contain following keys.
- :createTimeStart <DateTime>, find events that are created (stored) to database later than given time (inclusive).
- :eventTimeStart <DateTime>, find events that are created in tracker later than given time (inclusive).
TODO supports only the eventTimeStart
TODO calculates milliseconds wrong (12:30:01.000 is rounded to 12:30:01 but 12:30:01.001 is rounded to 12:30:02)
"
[criteria]
(let [event-start (:eventTimeStart criteria)
create-start (:createTimeStart criteria)
tracker-ids (:trackerIds criteria)
conditions (merge (when event-start {:event_time ['>= (to-sql-timestamp event-start)]})
(when create-start {:created_on ['>= (to-sql-timestamp create-start)]})
(when tracker-ids {:tracker_id ['in tracker-ids]})
)]
(if (not (empty? conditions))
(let [results (select event
(with event-location)
(with event-extension-value (fields :value)
(with event-extension-type (fields :name)))
(where (and conditions))
)]
results
)
'())))
(defn get-events [ids]
(select event
(with event-location)
(with event-extension-value)
(where (in :id ids))))
(defn get-all-events []
(select event
(with event-location)
(with event-extension-value)
))
(defn get-all-trackers []
(select tracker)
)
(defn get-tracker [id]
;; TODO support also fetching with tracker_indentifier
(first (select tracker
(where {:id id}))))
(defn- update-tracker-latest-activity [id]
(update tracker
(set-fields {:latest_activity (java.sql.Timestamp. (System/currentTimeMillis)) })
(where {:id id})))
(defn create-tracker [code name shared-secret]
(info "Create new tracker" name "(" code ")")
(insert tracker (values
{:tracker_code code
:shared_secret shared-secret
:name name})))
(defn create-event [data]
(transaction
(let [extension-keys (filter (fn [key]
(.startsWith (str (name key)) "X-"))
(keys data))
tracker (get-tracker-by-code! (:tracker_code data))
latitude (:latitude data)
longitude (:longitude data)
event-entity (insert event (values
{:tracker_id (tracker :id)
:event_time (or (to-sql-timestamp (:event_time data))
(current-sql-timestamp) )
}))]
(if (and latitude longitude)
(insert event-location (values
{:event_id (:id event-entity)
:latitude latitude
:longitude longitude
:accuracy (:accuracy data)
:satellite_count (:satellite_count data)
:altitude (:altitude data)}))
)
(doseq [key extension-keys]
(insert event-extension-value
(values
{:event_id (:id event-entity)
:value (data key)
:event_extension_type_id (:id (get-extension-type-by-name! key))
}
)))
(update-tracker-latest-activity (tracker :id))
event-entity
)))
)