/**
* cr-U-d
*
* @param key
* @param value
* @param docId
* @return success or failure
*/
public boolean update(final String key, final Object value, String docId) {
if (database == null) {
Log.e("DatabaseWrapper", "database is null : DatabaseWrapper.update");
return false;
}
// update the document
try {
Document doc = database.getDocument(docId);
// this alternative way is better for handling write conflicts
doc.update(
new Document.DocumentUpdater() {
@Override
public boolean update(UnsavedRevision newRevision) {
Map<String, Object> properties = newRevision.getUserProperties();
properties.put(key, value);
newRevision.setUserProperties(properties);
return true;
}
});
/* Map<String, Object> docContent = doc.getProperties();
//Working on a copy
Map<String, Object> updatedContent = new HashMap<String, Object>();
updatedContent.putAll(docContent);
updatedContent.put(key, value);
doc.putProperties(updatedContent);*/
} catch (CouchbaseLiteException e) {
e.printStackTrace();
return false;
}
return true;
}
/**
* Write an Attachment for a given Document
*
* @param docId
* @param attachName
* @param mimeType e.g. "image/jpeg"
* @param in
*/
public void writeAttachment(String docId, String attachName, String mimeType, InputStream in) {
try {
Document doc = database.getDocument(docId);
UnsavedRevision newRev = doc.getCurrentRevision().createRevision();
newRev.setAttachment(attachName, mimeType, in);
newRev.save();
} catch (CouchbaseLiteException e) {
e.printStackTrace();
}
}
/**
* Remove an Attachment from a Document
*
* @param docId
* @param attachName
*/
public void deleteAttachment(String docId, String attachName) {
try {
Document doc = database.getDocument(docId);
UnsavedRevision newRev = doc.getCurrentRevision().createRevision();
newRev.removeAttachment(attachName);
// (You could also update newRev.properties while you're here)
newRev.save();
} catch (CouchbaseLiteException e) {
e.printStackTrace();
}
}
/**
* C-rud
*
* @param docContent
* @return docId
*/
public String create(Map<String, Object> docContent, String docId) {
if (database == null) {
Log.e("DatabaseWrapper", "database is null : DatabaseWrapper.create(" + ")");
return "";
}
// create an empty document
Document doc = database.getDocument(docId);
// .createDocument();
// add content to document and write the document to the database
try {
doc.putProperties(docContent);
} catch (CouchbaseLiteException e) {
e.printStackTrace();
return "";
}
return doc.getId();
}
/**
* Get a given Document's attachment if any
*
* @param docId
* @param attachName
* @return Attachment
*/
public Attachment getAttachment(String docId, String attachName) {
Document doc = database.getDocument(docId);
Revision rev = doc.getCurrentRevision();
return rev.getAttachment(attachName);
}
