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Added Scholar.Items.erase(id) and Scholar.Item.erase() -- can be used externally with the former or internally with the latter

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Fixed bug in Scholar.Creators._getHash()
This commit is contained in:
Dan Stillman 2006-05-19 11:31:45 +00:00
parent 7800f7a39b
commit c726b3ba77
1 changed files with 69 additions and 1 deletions
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70
chrome/chromeFiles/content/scholar/data_access.js
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@ -689,6 +689,50 @@ Scholar.Item.prototype.save = function(){
}
/**
* Delete item from database and clear from Scholar.Items internal array
**/
Scholar.Item.prototype.erase = function(){
if (!this.getID()){
return false;
}
Scholar.debug('Deleting item ' + this.getID());
Scholar.DB.beginTransaction();
var parentFolderID = this.getField('parentFolderID');
var orderIndex = this.getField('orderIndex');
var sql = 'DELETE FROM treeStructure WHERE id=' + this.getID() + ";\n";
sql += 'UPDATE treeStructure SET orderIndex=orderIndex-1 ' +
'WHERE parentFolderID=' + parentFolderID +
' AND orderIndex>' + orderIndex + ";\n\n";
sql += 'DELETE FROM itemCreators WHERE itemID=' + this.getID() + ";\n";
sql += 'DELETE FROM itemKeywords WHERE itemID=' + this.getID() + ";\n";
sql += 'DELETE FROM itemData WHERE itemID=' + this.getID() + ";\n";
sql += 'DELETE FROM items WHERE itemID=' + this.getID() + ";\n";
Scholar.DB.query(sql);
Scholar.Creators.purge();
try {
Scholar.DB.commitTransaction();
}
catch (e){
Scholar.DB.rollbackTransaction();
throw (e);
}
Scholar.Items.unload(this.getID());
// TODO: trigger reloading of treeview
}
Scholar.Item.prototype.toString = function(){
return this.getTitle();
}
@ -783,6 +827,8 @@ Scholar.Items = new function(){
this.reload = reload;
this.reloadAll = reloadAll;
this.getNewItemByType = getNewItemByType;
this.erase = erase;
this.unload = unload;
/*
* Retrieves (and loads, if necessary) an arbitrary number of items
@ -946,6 +992,26 @@ Scholar.Items = new function(){
}
/**
* Delete item from database and clear from internal array
**/
function erase(id){
var obj = this.get(id);
obj.erase(); // calls unload()
obj = undefined;
// TODO: trigger reload of treeview
}
/**
* Clear item from internal array (used by Scholar.Item.erase())
**/
function unload(id){
delete _items[id];
}
function _load(){
if (!arguments){
return false;
@ -1101,6 +1167,8 @@ Scholar.Creators = new function(){
this.add = add;
this.purge = purge;
var self = this;
/*
* Returns an array of creator data for a given creatorID
*/
@ -1214,7 +1282,7 @@ Scholar.Creators = new function(){
function _getHash(creatorID){
var creator = this.get(creatorID);
var creator = self.get(creatorID);
if (!creator){
return false;
}