static int mdbDeleteRow(Edi *edi, cchar *tableName, cchar *key)
{
Mdb *mdb;
MdbTable *table;
int r, rc;
mprAssert(edi);
mprAssert(tableName && *tableName);
mprAssert(key && *key);
mdb = (Mdb*) edi;
lock(mdb);
if ((table = lookupTable(mdb, tableName)) == 0) {
unlock(mdb);
return MPR_ERR_CANT_FIND;
}
if ((r = lookupRow(table, key)) < 0) {
unlock(mdb);
return MPR_ERR_CANT_FIND;
}
rc = mprRemoveItemAtPos(table->rows, r);
if (table->index) {
mprRemoveKey(table->index, key);
}
autoSave(mdb, table);
unlock(mdb);
return rc;
}
static int deleteXmlPropertyByName(Ejs *ejs, EjsXML *xml, EjsName qname)
{
EjsXML *item;
bool removed;
int next;
removed = 0;
if (qname.name->value[0] == '@') {
/* @ and @* */
if (xml->attributes) {
for (next = 0; (item = mprGetNextItem(xml->attributes, &next)) != 0; ) {
assert(qname.name->value[0] == '@');
if (qname.name->value[1] == '*' || wcmp(item->qname.name->value, &qname.name->value[1]) == 0) {
mprRemoveItemAtPos(xml->attributes, next - 1);
item->parent = 0;
removed = 1;
next -= 1;
}
}
}
} else {
/* name and * */
if (xml->elements) {
for (next = 0; (item = mprGetNextItem(xml->elements, &next)) != 0; ) {
assert(item->qname.name);
if (qname.name->value[0] == '*' || ejsCompareString(ejs, item->qname.name, qname.name) == 0) {
mprRemoveItemAtPos(xml->elements, next - 1);
item->parent = 0;
removed = 1;
next -= 1;
}
}
}
}
return (removed) ? 0 : EJS_ERR;
}
/*
Set a property by name
There are 7 kinds of qname's: prop, @att, [prop], *, @*, .name, .@name
*/
static int setXmlPropertyByName(Ejs *ejs, EjsXML *xml, EjsName qname, EjsObj *value)
{
EjsXML *elt, *xvalue, *rp, *lastElt;
EjsObj *originalValue;
int index, last;
last = 0;
lastElt = 0;
if (isdigit((uchar) qname.name->value[0]) && allDigitsForXml(qname.name)) {
ejsThrowTypeError(ejs, "Integer indicies for set are not allowed");
return EJS_ERR;
}
if (xml->kind != EJS_XML_ELEMENT) {
// TODO spec requires this -- but why? -- surely throw?
return 0;
}
/*
Massage the value type.
*/
originalValue = value;
xvalue = (EjsXML*) value;
if (ejsIsXML(ejs, xvalue)) {
if (xvalue->kind == EJS_XML_LIST) {
value = cloneXml(ejs, xvalue, 1);
} else if (xvalue->kind == EJS_XML_TEXT || xvalue->kind == EJS_XML_ATTRIBUTE) {
value = ejsCast(ejs, originalValue, String);
} else {
value = cloneXml(ejs, xvalue, 1);
}
} else {
value = ejsCast(ejs, value, String);
}
if (qname.name->value[0] == '@') {
return setXmlPropertyAttributeByName(ejs, xml, qname, value);
}
/*
Delete redundant elements by the same name.
*/
if (xml->elements) {
for (last = -1, index = -1; (elt = mprGetPrevItem(xml->elements, &index)) != 0; ) {
if (qname.name->value[0] == '*' || (elt->kind == EJS_XML_ELEMENT && elt->qname.name == qname.name)) {
/*
Must remove all redundant elements of the same name except the first one
*/
if (last >= 0) {
rp = mprGetItem(xml->elements, last);
rp->parent = 0;
mprRemoveItemAtPos(xml->elements, last);
}
last = index;
lastElt = elt;
}
}
}
if (xml->elements == 0) {
// TODO - need routine to do this centrally so we can control the default number of elements in the list?
xml->elements = mprCreateList(-1, 0);
}
elt = lastElt;
index = last;
if (qname.name->value[0] == '*') {
/*
Special case when called from XMLList to update the value of an element
*/
xml = createValueNode(ejs, xml, value);
} else if (elt == 0) {
/*
Not found. New node required.
*/
elt = ejsCreateXML(ejs, EJS_XML_ELEMENT, qname, xml, NULL);
if (elt == 0) {
return 0;
}
index = mprGetListLength(xml->elements);
xml = ejsAppendToXML(ejs, xml, createValueNode(ejs, elt, value));
} else {
/*
Update existing element.
*/
xml = ejsSetXMLElement(ejs, xml, index, createValueNode(ejs, elt, value));
}
if (xml == 0) {
return EJS_ERR;
}
return index;
}
/*
Set a property attribute by name.
*/
static int setXmlPropertyAttributeByName(Ejs *ejs, EjsXML *xml, EjsName qname, EjsObj *value)
{
EjsXML *elt, *attribute, *xvalue, *lastElt;
EjsString *sv;
EjsName qn;
wchar *str;
int index, last, next;
/*
Attribute. If the value is an XML list, convert to a space separated string
*/
xvalue = (EjsXML*) value;
if (ejsIsXML(ejs, xvalue) && xvalue->kind == EJS_XML_LIST) {
str = 0;
for (next = 0; (elt = mprGetNextItem(xvalue->elements, &next)) != 0; ) {
sv = (EjsString*) ejsCast(ejs, (EjsObj*) elt, String);
str = mrejoin(str, NULL, " ", sv->value, NULL);
}
value = (EjsObj*) ejsCreateString(ejs, str, -1);
} else {
value = ejsCast(ejs, value, String);
}
assert(ejsIs(ejs, value, String));
/*
Find the first attribute that matches. Delete all other attributes of the same name.
*/
index = 0;
if (xml->attributes) {
lastElt = 0;
for (last = -1, index = -1; (elt = mprGetPrevItem(xml->attributes, &index)) != 0; ) {
assert(qname.name->value[0] == '@');
if (wcmp(elt->qname.name->value, &qname.name->value[1]) == 0) {
if (last >= 0) {
mprRemoveItemAtPos(xml->attributes, last);
}
last = index;
lastElt = elt;
}
}
if (lastElt) {
/*
Found a match. So replace its value
*/
lastElt->value = (EjsString*) value;
return last;
} else {
index = mprGetListLength(xml->attributes);
}
}
// TODO - namespace work to do here
/*
Not found. Create a new attribute node
*/
assert(ejsIs(ejs, value, String));
qn.space = NULL;
qn.name = ejsSubstring(ejs, qname.name, 1, -1);
attribute = ejsCreateXML(ejs, EJS_XML_ATTRIBUTE, qn, xml, (EjsString*) value);
if (xml->attributes == 0) {
xml->attributes = mprCreateList(-1, 0);
}
mprSetItem(xml->attributes, index, attribute);
return index;
}
