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Questions tagged [hierarchical-trees]

44 questions
8
votes
5 answers

Converting tree list to hierarchy dict

I have a list of elements with attrs: parent, level, is_leaf_node, is_root_node, is_child_node. I want to convert this list to hierarchy dict. Example of output dict: { 'Technology': { 'Gadgets':{}, …
Alexandr
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I Want to draw a hierarchial tree in a browser

I want to draw a hierarchial tree in a browser. I have used CSS and HTML and Javascript to play with some basic UI stuff in Browser. But I want to draw cool nodes and awesome connectors and come up with an aesthetic hierarchial tree (not Windows…
Sridhar Visvanath
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2 answers

Recommendations with hierarchical data on non-relational databases?

I'm developing an web application that uses a non-relational database as a backend (django-nonrel + AppEngine). I need to store some hierarchical data (projects/subproject_1/subproject_N/tasks), and I'm wondering which pattern should I use. For now…
Lucian
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4
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Creating a tree data structure (Has to be native) in Perl to represent a call tree that is located in a external file

Here is an example of the file. powrup.asm POWER_UP ......EXTERNAL_RAM_ADDRESSING_CHECK powrup.asm:461 ......EXRAM powrup.asm:490 ......INRAM powrup.asm:540 …
Paul
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4
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1 answer

Reddit's commenting system (hierarchial)

For those of you who have looked at Reddit's source code, where exactly is the logic where it manages the comments hierarchial structure? I downloaded the code, but couldn't even find the database structure let alone where the reads and writes are…
AnonymousCow
3
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3 answers

Need an Oracle hierarchical query that returns only full trees for records where children match a search string

Here's the full example data set for this query without any pruning of trees where no node matches the search string: Level parent id text --------------------------------------------- 0 0 1 toplevel 1 1 2 …
bchesley
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1 answer

How to maintain several translations of a documentation set written with Sphinx?

I am starting a personal project and I'd like to provide documentation for my French speaking fellows as well as for the English speaking others. So how should I organize my directories? What to separate (I guess sources, some conf items like…
Gra
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Best way to retrieve hierarchical data from database

I have to store blog style comments in a database. Each comment can have a parent one. I am doing it with a column called "parentComment" that has a null value when it is a top level comment or have a value if it is a response to another…
Santiago Corredoira
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JQuery, Hierarchical Table pagination

Hierarchical Table and table pagination is asked several times. But I am looking for both of them together. Am already using JQuery in my application so plugin using same will be useful, but I am open for any suggestion. At present I managed to…
BigBoss
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2 answers

Ruby on Rails: Routing for a tree hierarchy of places

So we've got a legacy system that tracks places with IDs like "Europe/France/Paris", and I'm building a Rails facade to turn this into URLs like http:// foobar/places/Europe/France/Paris. This requirement is not negotiable, the number of possible…
lambshaanxy
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How to get parent id(root parent) from child id

Possible Duplicate: function returning only once, why? my Database structure looks like id|parent| 1 | 0 | 2 | 0 | 3 | 0 | 4 | 1 | 5 | 4 | 6 | 5 | I am in need of a function that gets parent(i.e parent=0) for a id as…
Bikal Basnet
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How do you create a multi-dimensional array from hierarchically stored SQL data using the adjacency list method?

Hierarchical Data from SQL Adjacency List Model In my model I have a series of objects, each stored with their parent id. I am using the Adjacency list model as my hierarchy method. All examples of Adjacency list simply output there and then. None…
Jon Winstanley
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PostgreSQL Hierarchical, category tree

ENV : postgresql-8.4 I'm trying to build a category tree . Basically I'm expecting a final output such : categoryName categoryPath leafcategory e.g. : Digital Camera Electronics ::: Digital Camera true The table structure is CREATE TABLE…
themihai
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Find nested hierarchies using boolean matrix

I have a created a Node Builder to fetch how n elements are connected to one another. It is a parent child hierarchy represented in Node Tree. I am using tree builder like below code to find best two chains. Below is the code: public class…
AntCatcher
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3 answers

Doctrine nestedset delete

I have some models witch are using Doctrine nestedset feature. I want to add delete functionaly of elements from tree since that is required in my application. I was trying with snippets from documentation but I am getting a very strange error with…
Splendid
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