Collection Docs

Docs : « Docs » est le terme interne d’Overleaf désignant un fichier modifiable, par exemple un simple fichier tex ou un fichier .bib. Il stocke le contenu du fichier, les informations de révision et l’état de suppression.

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Identification

• _id : ObjectId MongoDB unique identifiant cet enregistrement de document.
• project_id : référence au projet (Project._id) auquel appartient ce fichier.
• name : nom du fichier tel qu’il apparaît dans l’arborescence du projet (par exemple main.tex, sample.bib).

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Révisions et versionnage

• rev : numéro de révision de ce document dans l’historique du projet.
• version : version interne du schéma ou du format utilisée par le backend de l’éditeur.

Ces champs sont utilisés par le système de versionnage propre à Overleaf pour suivre les modifications incrémentales et prendre en charge l’historique et le retour en arrière.

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Contenu du fichier

• lines :
  Tableau de chaînes représentant le contenu du fichier ligne par ligne.
  Chaque élément correspond à une ligne logique du fichier source.

  Dans cet exemple, il contient une entrée BibTeX :

  • @article{greenwade93, ... }

• ranges : structure de données réservée aux annotations de l’éditeur ou aux plages suivies
  (par exemple sélections, commentaires ou suivi des modifications). Vide lorsqu’aucune plage n’est active. op : objet d’opération qui associe le commentaire à une position précise dans le document.

  • op.c — texte sélectionné commenté (contenu en caractères)
  • op.p — position d’ancrage (décalage en caractères)
  • id : ObjectId unique de cette entrée de commentaire.
  • metadata : informations sur l’auteur et l’horodatage.

​

État de suppression

• deleted :
  Indique si ce document a été supprimé du projet.
• deletedAt :
  Horodatage de la suppression du document.

Les documents supprimés sont généralement conservés pour la récupération de l’historique et la consultation des versions, plutôt que d’être immédiatement retirés de la base de données.

Voici un exemple réel d’un docs Overleaf.

Un exemple simple

{
    _id: ObjectId('696b8377933aeebb3d3cc25e'),
    project_id: ObjectId('696b8377933aeebb3d3cc252'),
    rev: 1,
    lines: [
        '@article{greenwade93,',
        '    author  = "George D. Greenwade",',
        '    title   = "The {C}omprehensive {T}ex {A}rchive {N}etwork ({CTAN})",',
        '    year    = "1993",',
        '    journal = "TUGBoat",',
        '    volume  = "14",',
        '    number  = "3",',
        '    pages   = "342--351"',
        '}',
        ''
    ],
    ranges: {},
    version: 0,
    deleted: true,
    deletedAt: ISODate('2026-01-17T13:11:42.580Z'),
    name: 'sample.bib'
}

Un exemple complexe

{
    _id: ObjectId('69678eeec17c56232dd8930a'),
    project_id: ObjectId('69678eeec17c56232dd89305'),
    rev: 2,
    lines: [
        '\\documentclass{article}',
        '',
        '% Language setting',
        '% Replace `english\' with e.g. `spanish\' to change the document language',
        '\\usepackage[english]{babel}',
        '',
        '% Set page size and margins',
        '% Replace `letterpaper\' with `a4paper\' for UK/EU standard size',
        '\\usepackage[letterpaper,top=2cm,bottom=2cm,left=3cm,right=3cm,marginparwidth=1.75cm]{geometry}',
        '',
        '% Useful packages',
        '\\usepackage{amsmath}',
        '\\usepackage{graphicx}',
        '\\usepackage[colorlinks=true, allcolors=blue]{hyperref}',
        '',
        '\\title{Your Paper}',
        '\\author{You}',
        '',
        '\\begin{document}',
        '\\maketitle',
        '',
        '\\begin{abstract}',
        'Your abstract.',
        '\\end{abstract}',
        '',
        '\\section{Introduction}',
        '',
        'Your introduction goes here! Simply start writing your document and use the Recompile button to view the updated PDF preview. Examples of commonly used commands and features are listed below, to help you get started.',
        '',
        'Once you\'re familiar with the editor, you can find various project settings in the Overleaf menu, accessed via the button in the very top left of the editor.',
        '',
        '\\section{Some examples to get started}',
        '',
        '\\subsection{How to create Sections and Subsections}',
        '',
        'Simply use the section and subsection commands, as in this example document! With Overleaf, all the formatting and numbering is handled automatically according to the template you\'ve chosen. If you\'re using Rich Text mode, you can also create new section and subsections via the buttons in the editor toolbar.',
        '',
        '\\subsection{How to include Figures}',
        '',
        'First you have to upload the image file from your computer using the upload link in the file-tree menu. Then use the includegraphics command to include it in your document. Use the figure environment and the caption command to add a number and a caption to your figure. See the code for Figure \\ref{fig:frog} in this section for an example.',
        '',
        'Note that your figure will automatically be placed in the most appropriate place for it, given the surrounding text and taking into account other figures or tables that may be close by.',
        '',
        '\\begin{figure}',
        '\\centering',
        '\\includegraphics[width=0.25\\linewidth]{frog.jpg}',
        '\\caption{\\label{fig:frog}This frog was uploaded via the file-tree menu.}',
        '\\end{figure}',
        '',
        '\\subsection{How to add Tables}',
        '',
        'Use the table and tabular environments for basic tables --- see Table~\\ref{tab:widgets}, for example.',
        '',
        '\\begin{table}',
        '\\centering',
        '\\begin{tabular}{l|r}',
        'Item & Quantity \\\\\\hline',
        'Widgets & 42 \\\\',
        'Gadgets & 13',
        '\\end{tabular}',
        '\\caption{\\label{tab:widgets}An example table.}',
        '\\end{table}',
        '',
        '\\subsection{How to add Comments and Track Changes}',
        '',
        'Comments can be added to your project by highlighting some text and clicking ``Add comment\'\' in the top right of the editor pane. To view existing comments, click on the Review menu in the toolbar above. To reply to a comment, click on the Reply button in the lower right corner of the comment. You can close the Review pane by clicking its name on the toolbar when you\'re done reviewing for the time being.',
        '',
        'Track changes are available on all our premium plans, and can be toggled on or off using the option at the top of the Review pane. Track changes allow you to keep track of every change made to the document, along with the person making the change.',
        '',
        '\\subsection{How to add Lists}',
        '',
        'You can make lists with automatic numbering \\dots',
        '',
        '\\begin{enumerate}',
        '\\item Like this,',
        '\\item and like this.',
        '\\end{enumerate}',
        '\\dots or bullet points \\dots',
        '\\begin{itemize}',
        '\\item Like this,',
        '\\item and like this.',
        '\\end{itemize}',
        '',
        '\\subsection{How to write Mathematics}',
        '',
        '\\LaTeX{} is great at typesetting mathematics. Let $X_1, X_2, \\ldots, X_n$ be a sequence of independent and identically distributed random variables with $\\text{E}[X_i] = \\mu$ and $\\text{Var}[X_i] = \\sigma^2 < \\infty$, and let',
        '\\[S_n = \\frac{X_1 + X_2 + \\cdots + X_n}{n}',
        '      = \\frac{1}{n}\\sum_{i}^{n} X_i\\]',
        'denote their mean. Then as $n$ approaches infinity, the random variables $\\sqrt{n}(S_n - \\mu)$ converge in distribution to a normal $\\mathcal{N}(0, \\sigma^2)$.',
        '',
        '',
        '\\subsection{How to change the margins and paper size}',
        '',
        'Usually the template you\'re using will have the page margins and paper size set correctly for that use-case. For example, if you\'re using a journal article template provided by the journal publisher, that template will be formatted according to their requirements. In these cases, it\'s best not to alter the margins directly.',
        '',
        'If however you\'re using a more general template, such as this one, and would like to alter the margins, a common way to do so is via the geometry package. You can find the geometry package loaded in the preamble at the top of this example file.',
        '',
        '\\subsection{How to change the document language and spell check settings}',
        '',
        'Overleaf supports many different languages, including multiple different languages within one document.',
        '',
        'To configure the document language, simply edit the option provided to the babel package in the preamble at the top of this example project.',
        '',
        'To change the spell check language, simply open the Overleaf menu at the top left of the editor window, scroll down to the spell check setting, and adjust accordingly.',
        '',
        '\\subsection{How to add Citations and a References List}',
        '',
        'You can simply upload a \\verb|.bib| file containing your BibTeX entries, created with a tool such as JabRef. You can then cite entries from it, like this: \\cite{greenwade93}. Just remember to specify a bibliography style, as well as the filename of the \\verb|.bib|.',
        '',
        '\\subsection{Good luck!}',
        '',
        'We hope you find Overleaf useful!',
        '',
        '\\bibliographystyle{alpha}',
        '\\bibliography{sample}',
        '',
        '\\end{document}',
        ''
    ],
    ranges: {
        comments: [
            {
                id: ObjectId('696e0d122841260199000001'),
                op: {
                    c: 'Simply use the section and subsection commands, as in this example document! With Overleaf, all the formatting and numbering is handled automatically according to the template you\'ve chosen. If you\'re using Rich Text mode, you can also create new section and subsections via the buttons in the editor toolbar.',
                    p: 1053,
                    t: ObjectId('696e0d122841260199000001')
                },
                metadata: {
                    user_id: ObjectId('69661f10432ad80d8a7de39d'),
                    ts: ISODate('2026-01-19T10:53:08.859Z')
                }
            },
            {
                id: ObjectId('696e0d158250b82ffb000001'),
                op: {
                    c: 'Once you\'re familiar with the editor, you can find various project settings in the Overleaf menu, accessed via the button in the very top left of the editor.',
                    p: 801,
                    t: ObjectId('696e0d158250b82ffb000001')
                },
                metadata: {
                    user_id: ObjectId('69661f10432ad80d8a7de39d'),
                    ts: ISODate('2026-01-19T10:53:10.909Z')
                }
            }
        ]
    },
    version: 2
}