feat: Add document relation ship

docx-core/src/documents/document_rels.rs

@@ -0,0 +1,66 @@
+use crate::documents::BuildXML;
+use crate::xml_builder::*;
+
+#[derive(Debug)]
+pub struct DocumentRels {}
+
+impl DocumentRels {
+    pub fn new() -> DocumentRels {
+        DocumentRels {}
+    }
+}
+
+impl BuildXML for DocumentRels {
+    fn build(&self) -> Vec<u8> {
+        let b = XMLBuilder::new();
+        b.declaration(None)
+            .open_relationships("http://schemas.openxmlformats.org/package/2006/relationships")
+            .relationship(
+                "rId1",
+                "http://schemas.openxmlformats.org/officeDocument/2006/relationships/styles",
+                "styles.xml",
+            )
+            .relationship(
+                "rId2",
+                "http://schemas.openxmlformats.org/officeDocument/2006/relationships/fontTable",
+                "fontTable.xml",
+            )
+            .relationship(
+                "rId3",
+                "http://schemas.openxmlformats.org/officeDocument/2006/relationships/settings",
+                "settings.xml",
+            )
+            .relationship(
+                "rId4",
+                "http://schemas.openxmlformats.org/officeDocument/2006/relationships/tag",
+                "tag.xml",
+            )
+            .close()
+            .build()
+    }
+}
+
+#[cfg(test)]
+mod tests {
+
+    use super::*;
+    #[cfg(test)]
+    use pretty_assertions::assert_eq;
+    use std::str;
+
+    #[test]
+    fn test_build() {
+        let c = DocumentRels::new();
+        let b = c.build();
+        assert_eq!(
+            str::from_utf8(&b).unwrap(),
+            r#"<?xml version="1.0" encoding="UTF-8"?>
+<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships">
+  <Relationship Id="rId1" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/styles" Target="styles.xml" />
+  <Relationship Id="rId2" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/fontTable" Target="fontTable.xml" />
+  <Relationship Id="rId3" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/settings" Target="settings.xml" />
+  <Relationship Id="rId4" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/tag" Target="tag.xml" />
+</Relationships>"#
+        );
+    }
+}

docx-core/src/documents/mod.rs

@@ -2,6 +2,7 @@ mod build_xml;
 mod content_types;
 mod doc_props;
 mod document;
+mod document_rels;
 mod elements;
 mod rels;
 mod styles;
@@ -12,6 +13,7 @@ pub(crate) use build_xml::*;
 pub use content_types::*;
 pub use doc_props::*;
 pub use document::*;
+pub use document_rels::*;
 pub use elements::*;
 pub use rels::*;
 pub use styles::*;
@@ -21,6 +23,7 @@ pub use xml_docx::*;
 pub struct Docx {
     content_type: ContentTypes,
     rels: Rels,
+    document_rels: DocumentRels,
     doc_props: DocProps,
     styles: Styles,
     document: Document,
@@ -33,12 +36,14 @@ impl Default for Docx {
         let doc_props = DocProps::new(None, None /* TODO: */);
         let styles = Styles::new();
         let document = Document::new();
+        let document_rels = DocumentRels::new();
         Docx {
             content_type,
             rels,
             doc_props,
             styles,
             document,
+            document_rels,
         }
     }
 }
@@ -65,6 +70,7 @@ impl Docx {
             doc_props: self.doc_props.build(),
             styles: self.styles.build(),
             document: self.document.build(),
+            document_rels: self.document_rels.build(),
         }
     }
 }

docx-core/src/documents/xml_docx.rs

@@ -11,6 +11,7 @@ pub struct XMLDocx {
     pub doc_props: XMLDocProps,
     pub styles: Vec<u8>,
     pub document: Vec<u8>,
+    pub document_rels: Vec<u8>,
 }
 
 impl XMLDocx {

docx-core/src/zipper/mod.rs

@@ -28,7 +28,7 @@ where
     zip.start_file("docProps/core.xml", options)?;
     zip.write_all(&xml.doc_props.core)?;
     zip.start_file("word/_rels/document.xml.rels", options)?;
-    zip.write_all(&xml.rels)?;
+    zip.write_all(&xml.document_rels)?;
     zip.start_file("word/document.xml", options)?;
     zip.write_all(&xml.document)?;
     zip.start_file("word/styles.xml", options)?;

docx-core/tests/lib.rs

@@ -202,7 +202,7 @@ pub fn custom_attr_paragraph() -> Result<(), DocxError> {
     .add_paragraph(
       Paragraph::new()
         .add_run(Run::new().add_text("Hello"))
-        .add_custom_attr("w:customId", "1234-5678"),
+        .add_attr("w:customId", "1234-5678"),
     )
     .build()
     .pack(file)?;