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Remove global tag

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Coder12a 2019-01-09 00:25:55 -06:00
parent 02796f2998
commit 647330a033
2 changed files with 11 additions and 31 deletions
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26
README.md
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@ -13,19 +13,15 @@ Write this code in your lua file.
```lua ```lua
coldbase = colddb.Colddb("mydb") coldbase = colddb.Colddb("mydb")
``` ```
2. add an extra folder to the directory. every new file will be added to the global tag(folder). 2. store key item(this key has no value)
```lua
coldbase.add_global_tag("ips")
```
3. store key item(this key has no value)
```lua ```lua
coldbase.set_key("MyKey") coldbase.set_key("MyKey")
``` ```
4. store key-value item 3. store key-value item
```lua ```lua
coldbase.set("MyKeyAndValue", "Hello world") coldbase.set("MyKeyAndValue", "Hello world")
``` ```
5. retrieve items (get_key's callback(arg) will return true, false, or nil) 4. retrieve items (get_key's callback(arg) will return true, false, or nil)
```lua ```lua
coldbase.get("MyKeyAndValue", nil, function(arg) coldbase.get("MyKeyAndValue", nil, function(arg)
if arg then if arg then
@ -40,35 +36,35 @@ coldbase.get_key("MyKey", nil, function(arg)
end end
end) end)
``` ```
6. delete key(file) this function works on both keys and key-value keys. 5. delete key(file) this function works on both keys and key-value keys.
```lua ```lua
coldbase.remove("MyKeyAndValue") coldbase.remove("MyKeyAndValue")
``` ```
7. if add_to_mem_pool is true(true by default). keys are stored in a weak lua table(memory) it will be removed by the gc if its not in-use. Storing data in memory is to prevent the database from constantly loading up data from files. 6. if add_to_mem_pool is true(true by default). keys are stored in a weak lua table(memory) it will be removed by the gc if its not in-use. Storing data in memory is to prevent the database from constantly loading up data from files.
```lua ```lua
coldbase.add_to_mem_pool = true coldbase.add_to_mem_pool = true
``` ```
8. if indexes is true(false by default). When a key file is created an indexing file stores the key for look-ups. this makes it possible to iterate through keys. 7. if indexes is true(false by default). When a key file is created an indexing file stores the key for look-ups. this makes it possible to iterate through keys.
```lua ```lua
coldbase.indexes = true coldbase.indexes = true
``` ```
9. only if coldbase.indexes is true. returns the amount of keys that are in the indexing file. 8. only if coldbase.indexes is true. returns the amount of keys that are in the indexing file.
```lua ```lua
coldbase.get_count() coldbase.get_count()
``` ```
10. only if coldbase.indexes is true. iterates through the indexing file(breaks and ends if it reaches the end of the file). 9. only if coldbase.indexes is true. iterates through the indexing file(breaks and ends if it reaches the end of the file).
```lua ```lua
coldbase.iterate_index_table(nil, func_list_keys, nil) coldbase.iterate_index_table(nil, func_list_keys, nil)
``` ```
11. adds a folder which can be used in other functions that have tag_name arg. 10. adds a folder which can be used in other functions that have tag_name arg.
```lua ```lua
coldbase.add_tag("Extra_Folder", {"Extra", "Folder"}) coldbase.add_tag("Extra_Folder", {"Extra", "Folder"})
``` ```
12. returns the tag name if the tag does not exists it creates one. 11. returns the tag name if the tag does not exists it creates one.
```lua ```lua
coldbase.get_or_add_tag("Extra_Folder", {"Extra", "Folder"}) coldbase.get_or_add_tag("Extra_Folder", {"Extra", "Folder"})
``` ```
13. remove tag by name. 12. remove tag by name.
```lua ```lua
coldbase.remove_tag("Extra_Folder") coldbase.remove_tag("Extra_Folder")
``` ```

16
colddb.lua
View File

@ -185,22 +185,6 @@ function colddb.Colddb(directory)
end) end)
end end
self.add_global_tag = function(tag)
local t = ""
if type(tag) == "table" then
for index in pairs(tag) do
t = string.format("%s%s/", t, index)
end
else
t = string.format("%s/", tag)
end
self.db.global_tag = string.format("%s%s", self.db.global_tag, t)
self.db.directory = string.format("%s/%s", self.db.directory, t)
if not createDir(self.db.directory) then
error(string.format("%s is not a directory.", self.db.directory))
end
end
self.add_tag = function(name, tag) self.add_tag = function(name, tag)
local t = "" local t = ""
if not self.db.tags[name] then if not self.db.tags[name] then