Struct semilattice_database::SessionCollectionRow

source · 
pub struct SessionCollectionRow { /* private fields */ }

Implementations§

Examples found in repository?
src/update.rs (lines 18-24)
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pub fn incidentally_depend(
    session_data: &mut SessionData,
    pend_session_row: u32,
    relation_key: &str,
    depend_session_row: u32,
) {
    let depend = SessionCollectionRow::new(
        session_data
            .collection_id
            .value(depend_session_row)
            .unwrap(),
        -(depend_session_row as i64),
    );
    session_data
        .relation
        .insert(relation_key, pend_session_row, depend);
}

pub fn update_row(
    session_dir: &str,
    session_data: &mut SessionData,
    session_row: u32,
    row: i64,
    activity: &Activity,
    term_begin: i64,
    term_end: i64,
    fields: &Vec<KeyValue>,
) {
    session_data.row.update(session_row, row).unwrap();
    session_data
        .activity
        .update(session_row, *activity as u8)
        .unwrap();
    session_data
        .term_begin
        .update(session_row, term_begin)
        .unwrap();
    session_data.term_end.update(session_row, term_end).unwrap();
    for kv in fields {
        let key = kv.key();
        let field = if session_data.fields.contains_key(key) {
            session_data.fields.get_mut(key).unwrap()
        } else {
            let dir_name = session_dir.to_string() + "/fields/" + key + "/";
            std::fs::create_dir_all(dir_name.to_owned()).unwrap();
            if std::path::Path::new(&dir_name).exists() {
                let field = FieldData::new(&dir_name).unwrap();
                session_data
                    .fields
                    .entry(String::from(key))
                    .or_insert(field);
            }
            session_data.fields.get_mut(key).unwrap()
        };
        field.update(session_row, kv.value()).unwrap();
    }
}

pub(super) fn update_recursive(
    master_database: &Database,
    session_data: &mut SessionData,
    temporary_data: &mut TemporaryData,
    session_dir: &str,
    sequence_number: usize,
    records: &Vec<Record>,
    depend_by_pend: Option<(&str, u32)>,
) -> Result<(), std::io::Error> {
    for record in records {
        if let Ok(session_row) = session_data.sequence.insert(sequence_number) {
            session_data.row.resize_to(session_row)?;
            session_data.operation.resize_to(session_row)?;
            session_data.activity.resize_to(session_row)?;
            session_data.term_begin.resize_to(session_row)?;
            session_data.term_end.resize_to(session_row)?;

            match record {
                Record::New {
                    collection_id,
                    activity,
                    term_begin,
                    term_end,
                    fields,
                    depends,
                    pends,
                } => {
                    let collection_id = *collection_id;

                    let virtual_row = -(session_row as i64);

                    let term_begin = if let Term::Overwrite(term_begin) = term_begin {
                        *term_begin
                    } else {
                        chrono::Local::now().timestamp()
                    };
                    let term_end = if let Term::Overwrite(term_end) = term_end {
                        *term_end
                    } else {
                        0
                    };

                    let col = temporary_data
                        .entry(collection_id)
                        .or_insert(HashMap::new());
                    let mut tmp_fields = HashMap::new();
                    for kv in fields {
                        tmp_fields.insert(kv.key().to_string(), kv.value().to_vec());
                    }
                    col.insert(
                        virtual_row,
                        TemporaryDataEntity {
                            activity: *activity,
                            term_begin,
                            term_end,
                            fields: tmp_fields,
                        },
                    );

                    session_data
                        .collection_id
                        .update(session_row, collection_id)?;
                    session_data
                        .operation
                        .update(session_row, SessionOperation::New)?;
                    update_row(
                        session_dir,
                        session_data,
                        session_row,
                        0,
                        activity,
                        term_begin,
                        term_end,
                        fields,
                    );

                    if let Depends::Overwrite(depends) = depends {
                        for (key, depend) in depends {
                            session_data.relation.insert(key, session_row, *depend);
                        }
                    }
                    if let Some((key, depend_session_row)) = depend_by_pend {
                        incidentally_depend(session_data, session_row, key, depend_session_row);
                    }
                    for pend in pends {
                        update_recursive(
                            master_database,
                            session_data,
                            temporary_data,
                            session_dir,
                            sequence_number,
                            pend.records(),
                            Some((pend.key(), session_row)),
                        )?;
                    }
                }
                Record::Update {
                    collection_id,
                    row, //-の場合はセッション新規データの更新
                    activity,
                    term_begin,
                    term_end,
                    fields,
                    depends,
                    pends,
                } => {
                    let collection_id = *collection_id;
                    let row = *row;

                    let term_begin = if let Term::Overwrite(term_begin) = term_begin {
                        *term_begin
                    } else {
                        chrono::Local::now().timestamp()
                    };
                    let term_end = if let Term::Overwrite(term_end) = term_end {
                        *term_end
                    } else {
                        0
                    };

                    let col = temporary_data
                        .entry(collection_id)
                        .or_insert(HashMap::new());
                    let entity = col.entry(row).or_insert(TemporaryDataEntity {
                        activity: *activity,
                        term_begin,
                        term_end,
                        fields: HashMap::new(),
                    });
                    for kv in fields {
                        entity.fields.insert(kv.key().into(), kv.value().into());
                    }

                    session_data
                        .collection_id
                        .update(session_row, collection_id)?;
                    session_data
                        .operation
                        .update(session_row, SessionOperation::Update)?;
                    update_row(
                        session_dir,
                        session_data,
                        session_row,
                        row,
                        activity,
                        term_begin,
                        term_end,
                        fields,
                    );
                    match depends {
                        Depends::Default => {
                            if row > 0 {
                                let depends =
                                    master_database.relation().index_pend().select_by_value(
                                        &CollectionRow::new(collection_id, row as u32),
                                    );
                                for i in depends {
                                    if let Some(depend) =
                                        master_database.relation().depend(i as u32)
                                    {
                                        session_data.relation.insert(
                                            unsafe { master_database.relation().key(i as u32) },
                                            session_row,
                                            SessionCollectionRow::new(
                                                depend.collection_id(),
                                                depend.row() as i64,
                                            ),
                                        );
                                    }
                                }
                            } else {
                                session_data
                                    .relation
                                    .from_session_row((-row) as u32, session_row);
                            }
                        }
                        Depends::Overwrite(depends) => {
                            for (key, depend) in depends {
                                session_data.relation.insert(key, session_row, *depend);
                            }
                        }
                    }
                    if let Some((key, depend_session_row)) = depend_by_pend {
                        incidentally_depend(session_data, session_row, key, depend_session_row);
                    }
                    for pend in pends {
                        update_recursive(
                            master_database,
                            session_data,
                            temporary_data,
                            session_dir,
                            sequence_number,
                            pend.records(),
                            Some((pend.key(), session_row)),
                        )?;
                    }
                }
                Record::Delete { collection_id, row } => {
                    session_data
                        .collection_id
                        .update(session_row, *collection_id)?;
                    session_data.row.update(session_row, *row as i64)?;
                    session_data
                        .operation
                        .update(session_row, SessionOperation::Delete)?;
                }
            }
        }
    }
    Ok(())
}
More examples
Hide additional examples
src/relation.rs (lines 111-114)
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    pub fn depends(&self, key: Option<&str>, pend: &CollectionRow) -> Vec<SessionDepend> {
        let mut ret: Vec<SessionDepend> = Vec::new();
        if let Some(key_name) = key {
            if let Some(key) = self.key_names.find_row(key_name.as_bytes()) {
                let c = self.rows.pend.select_by_value(pend);
                for i in c {
                    if let (Some(key_row), Some(collection_row)) =
                        (self.rows.key.value(i), self.rows.depend.value(i))
                    {
                        if key_row == key {
                            ret.push(SessionDepend::new(
                                key_name,
                                SessionCollectionRow::new(
                                    collection_row.collection_id(),
                                    collection_row.row() as i64,
                                ),
                            ));
                        }
                    }
                }
            }
        } else {
            let c = self.rows.pend.select_by_value(pend);
            for i in c {
                if let (Some(key), Some(collection_row)) =
                    (self.rows.key.value(i), self.rows.pend.value(i))
                {
                    ret.push(SessionDepend::new(
                        unsafe { self.key_names.str(key) },
                        SessionCollectionRow::new(
                            collection_row.collection_id(),
                            collection_row.row() as i64,
                        ),
                    ));
                }
            }
        }
        ret
    }
src/commit.rs (line 103)
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pub fn commit(
    main_database: &mut Database,
    session_data: &SessionData,
) -> Result<(), std::io::Error> {
    let mut session_collection_row_map: HashMap<u32, CollectionRow> = HashMap::new();

    let mut session_relation: HashMap<u32, Vec<(u32, SessionCollectionRow)>> = HashMap::new();
    for row in 1..session_data.relation.rows.session_row.max_rows() {
        if let (Some(session_row), Some(depend)) = (
            session_data.relation.rows.session_row.value(row),
            session_data.relation.rows.depend.value(row),
        ) {
            let m = session_relation.entry(session_row).or_insert(Vec::new());
            m.push((row, depend));
        }
    }
    for session_row in 1..session_data.sequence.max_rows() {
        if let (Some(op), Some(collection_id), Some(row)) = (
            session_data.operation.value(session_row),
            session_data.collection_id.value(session_row),
            session_data.row.value(session_row),
        ) {
            if let Some(collection) = main_database.collection_mut(collection_id) {
                match op {
                    SessionOperation::New | SessionOperation::Update => {
                        let mut fields: Vec<KeyValue> = Vec::new();
                        for (key, ref field_data) in &session_data.fields {
                            if let Some(val) = field_data.get(session_row) {
                                fields.push(KeyValue::new(key, val));
                            }
                        }
                        let activity = if session_data.activity.value(session_row).unwrap() == 1 {
                            Activity::Active
                        } else {
                            Activity::Inactive
                        };
                        let term_begin =
                            Term::Overwrite(session_data.term_begin.value(session_row).unwrap());
                        let term_end =
                            Term::Overwrite(session_data.term_end.value(session_row).unwrap());
                        let collection_row = if row == 0 {
                            //new
                            let row=collection.create_row(&activity, &term_begin, &term_end, &fields);
                            CollectionRow::new(collection_id, row)
                        } else {
                            if row<0{
                                //update new data in session.
                                if let Some(master_collection_row)=session_collection_row_map.get(&(-row as u32)){
                                    let row=master_collection_row.row();
                                    collection.update_row(row, &activity, &term_begin, &term_end, &fields);
                                    CollectionRow::new(master_collection_row.collection_id(), row)
                                }else{
                                    panic!("crash");
                                }
                            }else{
                                //update
                                let row = row as u32;
                                collection.update_row(row, &activity, &term_begin, &term_end, &fields);
                                CollectionRow::new(collection_id, row)
                            }
                        };
                        main_database.relation.delete_by_collection_row(collection_row);
                        session_collection_row_map.insert(session_row, collection_row);
                        if let Some(depend_rows) = session_relation.get(&session_row) {
                            for (session_row, depend) in depend_rows {
                                let key =
                                    session_data.relation.rows.key.value(*session_row).unwrap();
                                let key = unsafe { session_data.relation.key_names.str(key) };

                                if depend.row < 0 {
                                    if let Some(depend) =
                                        session_collection_row_map.get(&((-depend.row) as u32))
                                    {
                                        main_database.relation.insert(
                                            key,
                                            *depend,
                                            collection_row,
                                        )?;
                                    }
                                } else {
                                    main_database.relation.insert(
                                        key,
                                        CollectionRow::new(depend.collection_id, depend.row as u32),
                                        collection_row,
                                    )?;
                                };
                            }
                        }
                    }
                    SessionOperation::Delete => {
                        //todo!("セッション考慮の削除処理");
                        delete_recursive(
                            main_database,
                            &SessionCollectionRow::new(collection_id, row),
                        );
                    }
                }
            }
        }
    }
    Ok(())
}

pub(super) fn delete_recursive(database: &mut Database, target: &SessionCollectionRow) {
    if target.row > 0 {
        let depend = CollectionRow::new(target.collection_id, target.row as u32);
        let c = database.relation.index_depend().select_by_value(&depend);
        for relation_row in c {
            if let Some(collection_row) = database.relation.index_pend().value(relation_row) {
                delete_recursive(
                    database,
                    &SessionCollectionRow::new(
                        collection_row.collection_id(),
                        collection_row.row() as i64,
                    ),
                );
                if let Some(collection) = database.collection_mut(collection_row.collection_id()) {
                    collection.update(&Operation::Delete {
                        row: collection_row.row(),
                    });
                }
            }
            database.relation.delete(relation_row);
        }
    }
}
Examples found in repository?
src/session/relation.rs (line 16)
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    pub fn collection_id(&self)->i32{
        self.collection_row.collection_id()
    }
Examples found in repository?
src/session/relation.rs (line 19)
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    pub fn row(&self)->i64{
        self.collection_row.row()
    }

Trait Implementations§

Returns a copy of the value. Read more
Performs copy-assignment from source. Read more
Formats the value using the given formatter. Read more
Returns the “default value” for a type. Read more
Converts to this type from the input type.
This method returns an Ordering between self and other. Read more
Compares and returns the maximum of two values. Read more
Compares and returns the minimum of two values. Read more
Restrict a value to a certain interval. Read more
This method tests for self and other values to be equal, and is used by ==.
This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
This method returns an ordering between self and other values if one exists. Read more
This method tests less than (for self and other) and is used by the < operator. Read more
This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
This method tests greater than (for self and other) and is used by the > operator. Read more
This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

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Gets the TypeId of self. Read more
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Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The resulting type after obtaining ownership.
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Performs the conversion.