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Viewing changes to src/CouchDBItem.vala

  • Committer: Adi Roiban
  • Date: 2010-04-11 18:03:06 UTC
  • Revision ID: adi@roiban.ro-20100411180306-qy5k3e2aq4i95nyz
Initial refactor for using CouchDBItem.

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src/CouchDBItem.vala
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public abstract class CouchDBItem : GLib.Object , IItem {
 
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    /* properties */
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    public string id {get; set;}
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    public string name {get; set;}
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    public string text {get; set;}
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    public bool isDeleted {get; set;}
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    public IBackend backend  {get; set;}
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    public abstract int instanceOf { get; }
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        /* signals */
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//    public signal void created ( bool status );
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//    public signal void deleted ( bool status );
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//    public signal void updated ( bool status );
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    private CouchDB.StructField _annotations;
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    protected CouchDB.Document document;
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    private Logger log;
 
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    protected Logger log;
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    construct {
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        /*stored in db*/
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        this.id = null;
 
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        this.id = "";
 
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        this.name = "Untitled Item";
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        this.text = "";
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        this.createdAt = Utils.DateTime.newTimeNow();
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        this.updatedAt = Utils.DateTime.newTimeNow();
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        /*temporary stored in memory*/
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                this.isDeleted = false;
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        this.height = 350;
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    public CouchDBItem (IBackend aBackend, CouchDB.Session couchdb){
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        this.backend = aBackend;
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        this.document = new CouchDB.Document(couchdb);
 
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        }
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    public CouchDBItem.fromDocument (IBackend aBackend, CouchDB.Document aDocument){
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        this.backend = aBackend;
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        this.document = aDocument;
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        CouchDBBackend.fillItemFieldsFromDocument(this, aDocument);
 
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        this.syncItemFromDocument();
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        }
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        public abstract void push();
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    /* sync Item using document at source */
 
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    public void syncItemFromDocument(){
 
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        this.id = this.document.get_id();
 
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        if (document.has_field(CouchDBBackend.FIELD_NAME)) {
 
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            this.name = this.document.get_string_field(CouchDBBackend.FIELD_NAME);
 
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        }
 
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        if (document.has_field(CouchDBBackend.FIELD_TEXT)) {
 
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            this.text = this.document.get_string_field(CouchDBBackend.FIELD_TEXT);
 
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        }
 
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        if (document.has_field(CouchDBBackend.FIELD_CREATED_AT)) {
 
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            this.createdAt = Utils.DateTime.parseTime(
 
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                this.document.get_string_field(CouchDBBackend.FIELD_CREATED_AT),
 
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                "%Y-%m-%dT%T");
 
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        }
 
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        if (document.has_field(CouchDBBackend.FIELD_UPDATED_AT)) {
 
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            this.updatedAt = Utils.DateTime.parseTime(
 
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                this.document.get_string_field(CouchDBBackend.FIELD_UPDATED_AT),
 
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                "%Y-%m-%dT%T");
 
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        }
 
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        if (this.getAnnotations().has_field(CouchDBBackend.FIELD_WIDTH)) {
 
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            this.width = this.getAnnotations().get_int_field(
 
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                CouchDBBackend.FIELD_WIDTH);
 
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        }
 
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        if (this.getAnnotations().has_field(CouchDBBackend.FIELD_HEIGHT)) {
 
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            this.height = this.getAnnotations().get_int_field(
 
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                CouchDBBackend.FIELD_HEIGHT);
 
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        }
 
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    }
 
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    /* sync document using item at source */
 
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    public void syncDocumentFromItem(){
 
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        this.document.set_string_field(
 
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            CouchDBBackend.FIELD_NAME, this.name);
 
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        this.document.set_string_field(
 
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            CouchDBBackend.FIELD_TEXT, this.text);
 
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        this.document.set_string_field(
 
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            CouchDBBackend.FIELD_UPDATED_AT,
 
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                    this.updatedAt.format("%Y-%m-%dT%H:%M:%S"));
 
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        this.document.set_string_field(
 
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            CouchDBBackend.FIELD_CREATED_AT,
 
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                    this.createdAt.format("%Y-%m-%dT%H:%M:%S"));
 
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        this.getAnnotations().set_int_field(
 
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            CouchDBBackend.FIELD_WIDTH, this.width);
 
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        this.getAnnotations().set_int_field(
 
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            CouchDBBackend.FIELD_HEIGHT, this.height);
 
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    }
 
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    /* Deletes this item from the database */
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    public void delete (){
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        bool result;
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        try {
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        if (result) {
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                    this.isDeleted = true;
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                    this.updated(true);
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                }    
 
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                }
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        }
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    public void update (){
 
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    /* Stores the item in the database */
 
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    public virtual void push() {
 
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        bool result;
 
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        this.updatedAt = Utils.DateTime.newTimeNow();
 
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        this.syncDocumentFromItem();
 
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        string database = "UNKNOWN DATABASE";
 
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        try {
 
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            if (this is INote) {
 
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                database = CouchDBBackend.DB_NOTES;
 
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            } else if (this is ITask) {
 
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                database = CouchDBBackend.DB_NOTES;
 
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            } else if (this is IProject) {
 
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                database = CouchDBBackend.DB_LUCRURI;
 
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            } else if (this is ICategory) {
 
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                database = CouchDBBackend.DB_LUCRURI;
 
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            } else {
 
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                this.log.debug("Don't know where should I put this document.");
 
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                return; 
 
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            }
 
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            result = document.put(database);
 
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        } catch (GLib.Error e) {
 
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            this.log.debug("Failed to put document in %s: %s".printf(database, e.message));
 
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            result = false;
 
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        }
 
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            if (result){
 
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                if (this.id == null){
 
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                    this.id = this.document.get_id();
 
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                    this.created(true);
 
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                } else {
 
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                    this.updated(true);
 
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               }
 
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            } else {
 
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                if (this.id == null){
 
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                    this.created(false);
 
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                } else {
 
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                    this.updated(false);
 
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                }
 
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            }
 
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        }
 
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    public CouchDB.StructField getAnnotations() {
 
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        if (this._annotations != null) {
 
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            return this._annotations;
 
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        }
 
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        CouchDB.StructField application_annotations;
 
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        application_annotations = this.document.get_struct_field(
 
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            CouchDBBackend.FIELD_APPLICATION_ANNOTATIONS);
 
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        if (application_annotations == null) {
 
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            application_annotations = new CouchDB.StructField.from_string(
 
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                CouchDBBackend.STRING_ANNOTATIONS);
 
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            this.document.set_struct_field(
 
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                CouchDBBackend.FIELD_APPLICATION_ANNOTATIONS,
 
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                application_annotations);
 
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        }
 
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186
        CouchDB.StructField lucruri_annotations;
 
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        lucruri_annotations = application_annotations.get_struct_field(
 
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            CouchDBBackend.FIELD_LUCRURI);
 
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        if (lucruri_annotations == null) {
 
190
            lucruri_annotations = new CouchDB.StructField();
 
191
            application_annotations.set_struct_field(
 
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                CouchDBBackend.FIELD_LUCRURI,
 
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                lucruri_annotations);
 
194
        }
 
195
        this._annotations = lucruri_annotations;
 
196
        return this._annotations;
 
197
    }
 
198
 
 
199
    // FIXME delete this from IItem
 
200
    public void update() {
77
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        this.push();
78
 
        }
 
202
    }
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}