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@ -14,47 +14,65 @@
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<p> The people behind <a href="http://gnucash.org">GnuCash</a> aim
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to create a world-class GPL'ed Open Source Personal Financial
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Application for GNU/Linux and other Unix's. This page aims to
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review some of the technical and development issues surrounding
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this product, representing a sort of <b>FAQ</b> for developers and
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contributors, to suggest directions when developers are trying to
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determine how to implement new functionality.</p>
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<p>To get a better idea of what <a href="http://gnucash.org">
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Application for GNU/Linux and other Unix's. This page reviews
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some of the technical issues and development status surrounding
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this project. It is a kind of an <b>FAQ</b> for developers and
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contributors, providing status, and suggesting directions and
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technologies for deploying new features.
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If you simply want to get a better idea of what
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<a href="http://gnucash.org">
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GnuCash</a> is and what it does, visit its <a href=
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"http://gnucash.org">home page</a>.</p>
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"http://gnucash.org">home page</a>. The home page contains
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screen shots, news items, and mailing list archives.
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<p>There are currently several different versions of
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GnuCash.</p>
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GnuCash. We've adopted the kernel numbering scheme:
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even minor relase numbers (1.2.x, 1.4.x) are considered to mark
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stable releases, while odd numbers (1.3.x) mark development
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releases.
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<ul>
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<li>The current stable, production release is gnucash-1.2.x
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and is based on the Open Group's Motif GUI library.<br>
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<br>
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</li>
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<li>However, development efforts have almost entirely
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switched over to <a href="http://www.gnome.org"> Gnome</a>
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and <a href="http://www.gtk.org"> GTK;</a> the Motif version
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will likely fall by the wayside.</li>
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<li>The current stable, production release is gnucash-1.2.5
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and is based on the Open Group's Motif GUI library.
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Note, however, that the Motif version is no longer being
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maintained, and all development efforts have switched over
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to the Gnome/GTK version.
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<br><br>
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<li>The 1.3.x releases focus on the
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the <a href="http://www.gnome.org">Gnome</a> /
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<a href="http://www.gtk.org">GTK</a> version.
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This version adds many new features that are absent in the Motif
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version. Development is progressing well, and the 1.3.x series
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are as usable as the 1.2.5 version.
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<br><br>
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<li>Note that some more experimental versions, such as one
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using the <a href="http://www.troll.no/products/qt.html"> Qt
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library from Troll Tech</a> FOR the for the <a href=
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"http://www.kde.org/"> KDE desktop,</a> PalmComputing
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using the <a href="http://www.troll.no/products/qt.html">Qt
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library from Troll Tech</a> for the for the <a href=
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"http://www.kde.org/">KDE desktop</a>, for the Palm Computing
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platforms, as well as a Java-based version have been
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discussed and/or started.<br>
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<br>
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discussed and/or started. Source code for these, such as there
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may be, is in the CVS tree.
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</li>
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</ul>
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<p> The latest Gnome version, and latest versions in general,
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are currently available only via CVS.</p>
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are currently available only via CVS. Occasionally, some of the
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more stable CVS versions are given a version number, and packaged
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as a precompiled deb or rpm install package.
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Naive or begining users should probably stick to version
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gnucash-1.2.5: although this version is quite old and lacking in
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many features, it is known to work. More adventurous users can try
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one of the 1.3.x releases: these days, they are pretty stable, and
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work pretty well. However, we cannot gaurentee that they are
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flawless. We've tried to make sure that no matter how broken
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these get, they won't mangle your data, but we can't make promises.
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<p>
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<p> Precompiled versions <em> are</em> available, but usually
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only for the stable releases. Don't use the unstable versions
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unless you are ready for excitement and adventure, and are
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prepared to cope with a need to keep extensive backups.</p>
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<p> This document is divided into several sections.</p>
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@ -87,10 +105,10 @@
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thought of as a manipulator of the data, a <b>
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Controller</b>.
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<p> Thus, the Motif or Gnome GUIs are merely two possible
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Thus, the Motif or Gnome GUIs are merely two possible
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manipulators of the data; others, based on <i>e.g.</i>
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Qt/KDE, emacs, Java applets or Java servlets ought to be
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possible.</p>
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web/cgi-bin, Qt/KDE, emacs, Java applets or Java servlets
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ought to be possible.
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</li>
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<li>The <b>View</b> of the data is a subset or slice of the
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@ -98,16 +116,17 @@
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transactions for the month of May, or only the account totals
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for certain accounts. The View is used in part to generate
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the reports and graphs, but it is also that which the
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Controller interacts with.</li>
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Controller interacts with. Views are generated by queries
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to the data store.</li>
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</ul>
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<p> GnuCash also needs to deal with multiple distributed data
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sources: stock quotations from the net or transaction
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confirmations from online banks and brokerage houses, or from
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more mundane sources, such as file imports, or merger of data
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from several users.</p>
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from several users.
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<p> Amongst these terms, the concept of a global Model-View is
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Amongst these terms, the concept of a global Model-View is
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dated, and somewhat inappropriate. Rather, we need to be
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concerned about how data is represented in the local address
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space of the GUI, how the GUI manipulates it, how data is
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@ -133,16 +152,21 @@
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structures include:</p>
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<ul>
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<li>Transactions</li>
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<li><b>Transactions</b>, which consist of a set of journal entries
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(JE's) whose values sum to zero.
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<li>Transaction entries (splits)</li>
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<li><b>Journal Entries<b> (internally refered to as 'splits')
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which record prices and values.
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<li>Accounts</li>
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<li><b>Accounts</b>
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<li>Hierarchies of Accounts</li>
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<li><b>Chart of Accounts</b>, which is a heirarchical tree of
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accounts.
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</ul>
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The Engine has a very simple apply/commit model, and a simple
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query mechanism for generating reports and views.
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query mechanism for generating reports and views. The goal of the
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commit and query model is to aid/simplify the creation of & merger
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with an SQL back-end.
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<p> The Engine currently handles only a small set of data
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sources:</p>
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@ -635,6 +659,9 @@
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<p> Stock portfolio tools should include a Cost Averaging
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report, Market Index report, Stock Option values,
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Estimation of capital gains tax liabilities.</p>
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<ul>
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<a href="http://www.gnome.org/guppi/">GUPPI</a>
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</ul>
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<p> <b>Status:</b></p>
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